首页 > 最新文献

Nano Communication Networks最新文献

英文 中文
Isolation enhancement in a tunable wideband THz MIMO DRA with polarization and pattern diversity without using decoupling element 带极化和模式分集的可调谐宽带太赫兹MIMO DRA的隔离增强
IF 2.9 4区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-04-03 DOI: 10.1016/j.nancom.2025.100573
Ravikanti Vinay kumar , Pinku Ranjan , Gaurav Kaushal
Isolation between the ports of a two-port terahertz (THz) multi-input, multi-output (MIMO) dielectric resonator (DR) antenna (DRA) is enhanced using a newly implemented technique which has been numerically analysed. Frustum geometry of DRs can provide the high isolation without requiring the separation distance between the radiators. The minimum isolation between the ports is enhanced to 21 dB in the case of frustum geometry of the DRs which remains around 12 dB in the case of conventional cylindrical DRs over a wide impedance bandwidth of 2.713.69THz. The orthogonal feeding arrangement is utilized to find the polarization diversity in antenna. The operation of antenna with multiple modes equivalent to the vertical electric dipoles of fundamental and higher order offers the radiation patterns with peaks off to the boresight axis which are resultantly organized to find the pattern diversity in antenna. The circuit analysis validates the antenna operation. The radiating surface of the DRs is coated with graphene that can provide the electrically tunable response over a wide frequency range. Setting the adequate surface conductivity of graphene can provide the dual mode operation of antenna with the capability of MIMO and self-diplexing with high gain around 6 dBi. The MIMO parameters like envelope correlation coefficient and diversity gain are found <0.1 and >9.98, respectively.
利用一种新实施的技术增强了双端口太赫兹(THz)多输入多输出(MIMO)介质谐振器(DR)天线(DRA)端口之间的隔离度,并对该技术进行了数值分析。DR 的浮士德几何形状可以提供高隔离度,而不需要辐射器之间的分离距离。在 2.71-3.69THz 的宽阻抗带宽内,DR 的挫面几何形状可将端口之间的最小隔离度提高到 21 dB,而传统圆柱形 DR 的隔离度仅为 12 dB 左右。利用正交馈电安排来实现天线的极化分集。天线的工作模式相当于基阶和高阶的垂直偶极子,其辐射模式的峰值偏离镗孔轴,从而使天线的模式多样化。电路分析验证了天线的工作原理。DR 的辐射表面涂有石墨烯,可以在很宽的频率范围内提供电可调响应。设置适当的石墨烯表面电导率可实现天线的双模运行,具有多输入多输出(MIMO)和自双工(self-iplexing)能力,增益约为 6 dBi。包络相关系数和分集增益等 MIMO 参数分别为 0.1 和 9.98。
{"title":"Isolation enhancement in a tunable wideband THz MIMO DRA with polarization and pattern diversity without using decoupling element","authors":"Ravikanti Vinay kumar ,&nbsp;Pinku Ranjan ,&nbsp;Gaurav Kaushal","doi":"10.1016/j.nancom.2025.100573","DOIUrl":"10.1016/j.nancom.2025.100573","url":null,"abstract":"<div><div>Isolation between the ports of a two-port terahertz (THz) multi-input, multi-output (MIMO) dielectric resonator (DR) antenna (DRA) is enhanced using a newly implemented technique which has been numerically analysed. Frustum geometry of DRs can provide the high isolation without requiring the separation distance between the radiators. The minimum isolation between the ports is enhanced to 21 dB in the case of frustum geometry of the DRs which remains around 12 dB in the case of conventional cylindrical DRs over a wide impedance bandwidth of <span><math><mrow><mn>2.71</mn><mo>−</mo><mn>3.69</mn><mspace></mspace></mrow></math></span>THz. The orthogonal feeding arrangement is utilized to find the polarization diversity in antenna. The operation of antenna with multiple modes equivalent to the vertical electric dipoles of fundamental and higher order offers the radiation patterns with peaks off to the boresight axis which are resultantly organized to find the pattern diversity in antenna. The circuit analysis validates the antenna operation. The radiating surface of the DRs is coated with graphene that can provide the electrically tunable response over a wide frequency range. Setting the adequate surface conductivity of graphene can provide the dual mode operation of antenna with the capability of MIMO and self-diplexing with high gain around 6 dBi. The MIMO parameters like envelope correlation coefficient and diversity gain are found &lt;0.1 and &gt;9.98, respectively.</div></div>","PeriodicalId":54336,"journal":{"name":"Nano Communication Networks","volume":"44 ","pages":"Article 100573"},"PeriodicalIF":2.9,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-gain radiating sun-shaped silicon-based wideband with defected ground structured dual-port MIMO antenna operating at 3.6 THz for 6 G Terahertz Applications 高增益辐射太阳形硅基宽带,具有缺陷地结构双端口MIMO天线,工作在3.6太赫兹,用于6g太赫兹应用
IF 2.9 4区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-03-28 DOI: 10.1016/j.nancom.2025.100572
Srinivas Paruchuri , V. Vijayasri Bolisetty , D. AnandKumar , Bokkisam Venkata Sai Sailaja
In this work, we present a novel wideband 2 × 2 terahertz (THz) antenna array for MIMO applications, featuring a compact footprint of 300 × 490 × 50 µm³ on a silicon substrate with a dielectric constant of 11.9. The proposed design incorporates circular split-ring resonators (CSRRs) and radiating slots etched in a unique "sun-shaped" radiating layer, achieving broad bandwidth and efficient radiation characteristics. The two MIMO elements are positioned side-by-side to optimize data transmission and isolation. The antenna demonstrates a wide operational bandwidth from 1.76 THz to 5.07 THz, with a gain exceeding 9 dBi across this range. Key performance metrics include an envelope correlation coefficient (ECC) of -0.08 dB and a diversity gain of 9.92 dB at 3.16 THz, indicating strong MIMO performance and minimal mutual coupling. The reflection (S11) and transmission (S21) parameters are better than -40 dB, further confirming excellent impedance matching and inter-element isolation. Additionally, the channel capacity loss remains under 0.4 bps/Hz, ensuring efficient data throughput. The proposed sun-shaped MIMO THz antenna offers promising potential for high-speed, reliable wireless communication applications in the terahertz domain.
在这项工作中,我们提出了一种用于MIMO应用的新型宽带2 × 2太赫兹(THz)天线阵列,其在介电常数为11.9的硅衬底上的占地面积为300 × 490 × 50 μ m³。该设计采用圆形分环谐振器(csrr)和独特的“太阳形”辐射层中蚀刻的辐射槽,实现了宽带宽和高效辐射特性。两个MIMO元件并排放置,以优化数据传输和隔离。该天线具有从1.76太赫兹到5.07太赫兹的宽工作带宽,在此范围内增益超过9 dBi。关键性能指标包括-0.08 dB的包络相关系数(ECC)和3.16 THz时9.92 dB的分集增益,表明了强大的MIMO性能和最小的相互耦合。反射(S11)和传输(S21)参数优于-40 dB,进一步证实了良好的阻抗匹配和元件间隔离。此外,信道容量损失保持在0.4 bps/Hz以下,保证了高效的数据吞吐量。所提出的太阳形MIMO太赫兹天线为太赫兹领域的高速、可靠的无线通信应用提供了广阔的潜力。
{"title":"High-gain radiating sun-shaped silicon-based wideband with defected ground structured dual-port MIMO antenna operating at 3.6 THz for 6 G Terahertz Applications","authors":"Srinivas Paruchuri ,&nbsp;V. Vijayasri Bolisetty ,&nbsp;D. AnandKumar ,&nbsp;Bokkisam Venkata Sai Sailaja","doi":"10.1016/j.nancom.2025.100572","DOIUrl":"10.1016/j.nancom.2025.100572","url":null,"abstract":"<div><div>In this work, we present a novel wideband 2 × 2 terahertz (THz) antenna array for MIMO applications, featuring a compact footprint of 300 × 490 × 50 µm³ on a silicon substrate with a dielectric constant of 11.9. The proposed design incorporates circular split-ring resonators (CSRRs) and radiating slots etched in a unique \"sun-shaped\" radiating layer, achieving broad bandwidth and efficient radiation characteristics. The two MIMO elements are positioned side-by-side to optimize data transmission and isolation. The antenna demonstrates a wide operational bandwidth from 1.76 THz to 5.07 THz, with a gain exceeding 9 dBi across this range. Key performance metrics include an envelope correlation coefficient (ECC) of -0.08 dB and a diversity gain of 9.92 dB at 3.16 THz, indicating strong MIMO performance and minimal mutual coupling. The reflection (S<sub>11</sub>) and transmission (S<sub>21</sub>) parameters are better than -40 dB, further confirming excellent impedance matching and inter-element isolation. Additionally, the channel capacity loss remains under 0.4 bps/Hz, ensuring efficient data throughput. The proposed sun-shaped MIMO THz antenna offers promising potential for high-speed, reliable wireless communication applications in the terahertz domain.</div></div>","PeriodicalId":54336,"journal":{"name":"Nano Communication Networks","volume":"44 ","pages":"Article 100572"},"PeriodicalIF":2.9,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Novel design of phase-frequency detector using a new flip-flop with reset capability in QCA technology 利用 QCA 技术中具有复位功能的新型触发器设计新颖的相频检测器
IF 2.9 4区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-03-16 DOI: 10.1016/j.nancom.2025.100571
Pezhman Kiani Vosta
QCA (Quantum-dot Cellular Automata) technology is considered as an innovative method in the design of electronic circuits due to its ability to perform fast processing calculations. In this article, for the first time, some new designs of digital circuits were designed and simulated in the best case with a new and practical technique. This article uses a unique technique to design a d-flip-flop with reset capability with 33 cells, an area of 0.02μm2 and a delay of 0.75 clock cycles, a PFD (Phase-Frequency Detector) of the first type with 88 cells, an area of 0.07μm2 and a delay of one clock cycle, and a second type of PFD with 119 cells, an area of 0.09μm2 and has designed a delay of 1.75 clock cycles. Also, the number of cells and the occupied area of the proposed designs have improved by 33.74 % and 59 %, respectively, compared to different authorities. Therefore, the proposed designs are considered among the best designs among different authorities.
量子点元胞自动机(Quantum-dot Cellular Automata, QCA)技术由于能够进行快速的处理计算,被认为是电子电路设计中的一种创新方法。本文首次采用一种新的实用技术,在最佳情况下设计和模拟了一些新的数字电路设计。本文采用独特的技术设计了具有复位能力的33个单元、面积为0.02μm2、延迟为0.75时钟周期的d型触发器、88个单元、面积为0.07μm2、延迟为1时钟周期的第一种PFD (Phase-Frequency Detector)和119个单元、面积为0.09μm2、延迟为1.75时钟周期的第二种PFD。此外,与其他权威机构相比,拟议设计的单元数和占用面积分别提高了33.74%和59%。因此,所提出的设计在不同权威机构中被认为是最佳设计。
{"title":"Novel design of phase-frequency detector using a new flip-flop with reset capability in QCA technology","authors":"Pezhman Kiani Vosta","doi":"10.1016/j.nancom.2025.100571","DOIUrl":"10.1016/j.nancom.2025.100571","url":null,"abstract":"<div><div>QCA (Quantum-dot Cellular Automata) technology is considered as an innovative method in the design of electronic circuits due to its ability to perform fast processing calculations. In this article, for the first time, some new designs of digital circuits were designed and simulated in the best case with a new and practical technique. This article uses a unique technique to design a <span>d</span>-flip-flop with reset capability with 33 cells, an area of <span><math><mrow><mn>0.02</mn><mspace></mspace><mi>μ</mi><msup><mrow><mi>m</mi></mrow><mn>2</mn></msup></mrow></math></span> and a delay of 0.75 clock cycles, a PFD (Phase-Frequency Detector) of the first type with 88 cells, an area of <span><math><mrow><mn>0.07</mn><mspace></mspace><mi>μ</mi><msup><mrow><mi>m</mi></mrow><mn>2</mn></msup></mrow></math></span> and a delay of one clock cycle, and a second type of PFD with 119 cells, an area of <span><math><mrow><mn>0.09</mn><mi>μ</mi><msup><mrow><mi>m</mi></mrow><mn>2</mn></msup></mrow></math></span> and has designed a delay of 1.75 clock cycles. Also, the number of cells and the occupied area of the proposed designs have improved by 33.74 % and 59 %, respectively, compared to different authorities. Therefore, the proposed designs are considered among the best designs among different authorities.</div></div>","PeriodicalId":54336,"journal":{"name":"Nano Communication Networks","volume":"44 ","pages":"Article 100571"},"PeriodicalIF":2.9,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modelling of novel ultra-efficient single layer nano-scale adder-subtractor in QCA nanotechnology
IF 2.9 4区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-01-27 DOI: 10.1016/j.nancom.2025.100564
Javeed Iqbal Reshi, M․Tariq Banday, Farooq A. Khanday
Quantum dot Cellular Automata is considered as promising alternative technology for designing nanoscale circuits. It operates on the principle derived from quantum mechanics and utilizes quantum dots as building blocks for information processing and computations. QCA offers numerous benefits including ultra-low energy dissipation, enhanced performance, high device density, resistance to scaling limitations and inherent parallelism. Previous realizations of Quantum Dot Cellular Automata (QCA) based-adder and subtractor circuits faced significant challenges like cell count, complexity and energy dissipation. This paper, proposes novel designs of adder-subtractor circuits based on novel 3-input XOR gate. The proposed circuits do not require any rotated cells or crossovers and are based on single layer design that eases the manufacturability. In addition, the proposed designs demonstrate significant reduction in cell count, complexity and energy dissipation compared to best known prior counterparts. Specifically, the reductions are 14.28 %, 42.85 %, and 56.66 % for adder, subtractor and adder-subtractor respectively. These improvements signify a substantial gain in circuit efficiency. The functional validity of the proposed layouts is verified using QCADesigner 2.0.3 simulator. The power efficiency analysis has been performed using QCADesigner-E tool, which enables the designer to analyse, optimize and validate the power consumption characteristics of the proposed circuits. The overall energy consumption of adder, subtractor and adder-subtractor is reported to be 1.10e-002 eV, 1.12e-002 eV, 1.06e-002 eV respectively. Additionally, the average energy dissipation of 9.96e-004 eV, 1.02e-003 eV, 9.63e-004 eV was observed using QCADesigner-E tool.
{"title":"Modelling of novel ultra-efficient single layer nano-scale adder-subtractor in QCA nanotechnology","authors":"Javeed Iqbal Reshi,&nbsp;M․Tariq Banday,&nbsp;Farooq A. Khanday","doi":"10.1016/j.nancom.2025.100564","DOIUrl":"10.1016/j.nancom.2025.100564","url":null,"abstract":"<div><div>Quantum dot Cellular Automata is considered as promising alternative technology for designing nanoscale circuits. It operates on the principle derived from quantum mechanics and utilizes quantum dots as building blocks for information processing and computations. QCA offers numerous benefits including ultra-low energy dissipation, enhanced performance, high device density, resistance to scaling limitations and inherent parallelism. Previous realizations of Quantum Dot Cellular Automata (QCA) based-adder and subtractor circuits faced significant challenges like cell count, complexity and energy dissipation. This paper, proposes novel designs of adder-subtractor circuits based on novel 3-input XOR gate. The proposed circuits do not require any rotated cells or crossovers and are based on single layer design that eases the manufacturability. In addition, the proposed designs demonstrate significant reduction in cell count, complexity and energy dissipation compared to best known prior counterparts. Specifically, the reductions are 14.28 %, 42.85 %, and 56.66 % for adder, subtractor and adder-subtractor respectively. These improvements signify a substantial gain in circuit efficiency. The functional validity of the proposed layouts is verified using QCADesigner 2.0.3 simulator. The power efficiency analysis has been performed using QCADesigner-E tool, which enables the designer to analyse, optimize and validate the power consumption characteristics of the proposed circuits. The overall energy consumption of adder, subtractor and adder-subtractor is reported to be 1.10e-002 eV, 1.12e-002 eV, 1.06e-002 eV respectively. Additionally, the average energy dissipation of 9.96e-004 eV, 1.02e-003 eV, 9.63e-004 eV was observed using QCADesigner-E tool.</div></div>","PeriodicalId":54336,"journal":{"name":"Nano Communication Networks","volume":"43 ","pages":"Article 100564"},"PeriodicalIF":2.9,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Energy harvesting-based thermal aware routing protocol for lung terahertz nanosensor networks
IF 2.9 4区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-01-14 DOI: 10.1016/j.nancom.2025.100563
Juan Xu, Xin Li, Jiali Kan, Ruofan Wang
Lung damage caused by viral infections such as COVID-19, MERS, and SARS can lead to serious or even fatal conditions. Therefore, monitoring lung diseases at the nanoscale has great potential for development. Some biomedical sensors implanted in the human body can generate electromagnetic radiation, and excessive emission power may pose a serious threat to tissues in the human body. Therefore, while constructing lung wireless nanosensor network (WNSN), we need to consider the limited energy storage and potential thermal effects of nanosensors. In this paper, an energy harvesting-based thermal aware routing (EHTAR) protocol is proposed. The protocol introduces a piezoelectric energy harvesting system to charge the nanonodes and proposes a sleep-wake mechanism for node temperature and energy to establish a next-hop link cost function using node temperature, remaining energy, and distance as cost factors. Simulation results demonstrate that EHTAR makes the node temperature not exceed the set threshold and the energy harvesting mechanism can greatly extend the network survival, so EHTAR can be better applied in the lung health monitoring scenario.
{"title":"Energy harvesting-based thermal aware routing protocol for lung terahertz nanosensor networks","authors":"Juan Xu,&nbsp;Xin Li,&nbsp;Jiali Kan,&nbsp;Ruofan Wang","doi":"10.1016/j.nancom.2025.100563","DOIUrl":"10.1016/j.nancom.2025.100563","url":null,"abstract":"<div><div>Lung damage caused by viral infections such as COVID-19, MERS, and SARS can lead to serious or even fatal conditions. Therefore, monitoring lung diseases at the nanoscale has great potential for development. Some biomedical sensors implanted in the human body can generate electromagnetic radiation, and excessive emission power may pose a serious threat to tissues in the human body. Therefore, while constructing lung wireless nanosensor network (WNSN), we need to consider the limited energy storage and potential thermal effects of nanosensors. In this paper, an energy harvesting-based thermal aware routing (EHTAR) protocol is proposed. The protocol introduces a piezoelectric energy harvesting system to charge the nanonodes and proposes a sleep-wake mechanism for node temperature and energy to establish a next-hop link cost function using node temperature, remaining energy, and distance as cost factors. Simulation results demonstrate that EHTAR makes the node temperature not exceed the set threshold and the energy harvesting mechanism can greatly extend the network survival, so EHTAR can be better applied in the lung health monitoring scenario.</div></div>","PeriodicalId":54336,"journal":{"name":"Nano Communication Networks","volume":"43 ","pages":"Article 100563"},"PeriodicalIF":2.9,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of triband circularly polarized hexagon shaped patch antenna using optimized Siamese heterogeneous convolutional neural networks for 5G wireless communication system
IF 2.9 4区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-12-19 DOI: 10.1016/j.nancom.2024.100562
Venkat S , Tapas Bapu B R , Radhika R , Aruna V V
The advent of 5G wireless communication systems necessitates the development of advanced antenna designs that offer superior performance across multiple frequency bands. Traditional patch antenna design methods, involving iterative simulations, are time-consuming and often insufficient in fully exploring the vast design space and provide less efficiency. To overcome these issues, this work proposes a novel approach for designing a triband circularly polarized hexagon-shaped patch antenna optimized for 5G applications using an Optimized Siamese Heterogeneous Convolutional Neural Network (SHCNN) coupled with a Circle-Inspired Optimization Algorithm (CIOA). Initially, the triband circularly polarized hexagon-shaped patch antenna is designed. The proposed approach leverages SHCNN to learn the relationship between antenna geometry and performance characteristics, utilizing two identical subnetworks with heterogeneous convolutional layers for efficient feature extraction from varied hexagonal antenna geometries. The CIOA, inspired by the properties of circles such as uniformity and symmetry, refines the antenna design suggested by the SHCNN to achieve optimal triband CP performance. This methodology significantly reduces design time by suggesting promising geometries, explores a vast design space for potential novel configurations, and ensures efficient optimization for optimal performance within the desired frequency bands. Applications include compact, high-performance antennas for 5G base stations and user equipment, enhancing multi-band signal transmission and reception. The introduced antenna design is compiled using MATLAB and HFSS platforms. The simulation results of the proposed antenna, employing SHCNNCIOA methods and operating across three frequency bands (triband) such as low (600 MHz - 1 GHz), mid (2.5GHz - 3.7 GHz), and high (24 GHz - 28 GHz), achieve a gain of 8–10 dB, a return loss of less than -20 dB, higher efficiency at 98 %, and a lower VSWR of 1.5 compared with existing designs.
{"title":"Design of triband circularly polarized hexagon shaped patch antenna using optimized Siamese heterogeneous convolutional neural networks for 5G wireless communication system","authors":"Venkat S ,&nbsp;Tapas Bapu B R ,&nbsp;Radhika R ,&nbsp;Aruna V V","doi":"10.1016/j.nancom.2024.100562","DOIUrl":"10.1016/j.nancom.2024.100562","url":null,"abstract":"<div><div>The advent of 5G wireless communication systems necessitates the development of advanced antenna designs that offer superior performance across multiple frequency bands. Traditional patch antenna design methods, involving iterative simulations, are time-consuming and often insufficient in fully exploring the vast design space and provide less efficiency. To overcome these issues, this work proposes a novel approach for designing a triband circularly polarized hexagon-shaped patch antenna optimized for 5G applications using an Optimized Siamese Heterogeneous Convolutional Neural Network (SHCNN) coupled with a Circle-Inspired Optimization Algorithm (CIOA). Initially, the triband circularly polarized hexagon-shaped patch antenna is designed. The proposed approach leverages SHCNN to learn the relationship between antenna geometry and performance characteristics, utilizing two identical subnetworks with heterogeneous convolutional layers for efficient feature extraction from varied hexagonal antenna geometries. The CIOA, inspired by the properties of circles such as uniformity and symmetry, refines the antenna design suggested by the SHCNN to achieve optimal triband CP performance. This methodology significantly reduces design time by suggesting promising geometries, explores a vast design space for potential novel configurations, and ensures efficient optimization for optimal performance within the desired frequency bands. Applications include compact, high-performance antennas for 5G base stations and user equipment, enhancing multi-band signal transmission and reception. The introduced antenna design is compiled using MATLAB and HFSS platforms. The simulation results of the proposed antenna, employing SHCNN<img>CIOA methods and operating across three frequency bands (triband) such as low (600 MHz - 1 GHz), mid (2.5GHz - 3.7 GHz), and high (24 GHz - 28 GHz), achieve a gain of 8–10 dB, a return loss of less than -20 dB, higher efficiency at 98 %, and a lower VSWR of 1.5 compared with existing designs.</div></div>","PeriodicalId":54336,"journal":{"name":"Nano Communication Networks","volume":"43 ","pages":"Article 100562"},"PeriodicalIF":2.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Internet of harvester nano things: A future prospects
IF 2.9 4区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-12-11 DOI: 10.1016/j.nancom.2024.100550
Bitop Maitra , Emine Bardakci , Oktay Cetinkaya , Ozgur B. Akan
The advancements in nanotechnology, material science, and electrical engineering have shrunk the sizes of electronic devices down to the micro/nanoscale. This brings the opportunity of developing the Internet of Nano Things (IoNT), an extension of the Internet of Things (IoT). With nanodevices, numerous new possibilities emerge in the biomedical, military fields, and industrial products. However, a continuous energy supply is mandatory for these devices to work. At the micro/nanoscale, batteries cannot supply this demand due to size limitations and the limited energy contained in the batteries. Internet of Harvester Nano Things (IoHNT), a concept of Energy Harvesting (EH) integrated with wireless power transmission (WPT) techniques, converts the existing different energy sources into electrical energy and transmits to IoNT nodes. As IoHNTs are not directly attached to IoNTs, it gives flexibility in size. However, we define the size of IoHNTs as up to 10 cm. In this review, we comprehensively investigate the available energy sources and EH principles to wirelessly power IoNTs. We discuss the IoHNT principles, material selections, and state-of-the-art applications of each energy source for different sectoral applications. The different technologies of WPT and how communication is influenced by the incorporation of IoHNTs to power IoNTs are discussed with the future research directions. IoHNTs represent a shift in the nanodevice power supply, leading us towards a future where wireless technology is widespread. Hence, it will motivate researchers to envision and contribute to advancing the following power revolution in IoNT, providing unmatched simplicity and efficiency.
{"title":"Internet of harvester nano things: A future prospects","authors":"Bitop Maitra ,&nbsp;Emine Bardakci ,&nbsp;Oktay Cetinkaya ,&nbsp;Ozgur B. Akan","doi":"10.1016/j.nancom.2024.100550","DOIUrl":"10.1016/j.nancom.2024.100550","url":null,"abstract":"<div><div>The advancements in nanotechnology, material science, and electrical engineering have shrunk the sizes of electronic devices down to the micro/nanoscale. This brings the opportunity of developing the Internet of Nano Things (IoNT), an extension of the Internet of Things (IoT). With nanodevices, numerous new possibilities emerge in the biomedical, military fields, and industrial products. However, a continuous energy supply is mandatory for these devices to work. At the micro/nanoscale, batteries cannot supply this demand due to size limitations and the limited energy contained in the batteries. Internet of Harvester Nano Things (IoHNT), a concept of Energy Harvesting (EH) integrated with wireless power transmission (WPT) techniques, converts the existing different energy sources into electrical energy and transmits to IoNT nodes. As IoHNTs are not directly attached to IoNTs, it gives flexibility in size. However, we define the size of IoHNTs as up to 10 cm. In this review, we comprehensively investigate the available energy sources and EH principles to wirelessly power IoNTs. We discuss the IoHNT principles, material selections, and state-of-the-art applications of each energy source for different sectoral applications. The different technologies of WPT and how communication is influenced by the incorporation of IoHNTs to power IoNTs are discussed with the future research directions. IoHNTs represent a shift in the nanodevice power supply, leading us towards a future where wireless technology is widespread. Hence, it will motivate researchers to envision and contribute to advancing the following power revolution in IoNT, providing unmatched simplicity and efficiency.</div></div>","PeriodicalId":54336,"journal":{"name":"Nano Communication Networks","volume":"43 ","pages":"Article 100550"},"PeriodicalIF":2.9,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Towards a scalable and efficient full- adder structure in atomic silicon dangling band technology
IF 2.9 4区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-12-10 DOI: 10.1016/j.nancom.2024.100561
Hadi Rasmi , Mohammad Mosleh , Nima Jafari Navimipour , Mohammad Kheyrandish
Atomic Silicon Dangling Bond (ASDB) is a promising new nanoscale technology for fabricating logic gates and digital circuits. This technology offers tremendous advantages, such as small size, high speed, and low power consumption. As science and technology progress, ASDB technology may eventually replace the current VLSI technology. This nanoscale technology is still in its early stages of development. Recently, many computing circuits, such as full-adder, have been designed. However, these circuits have a common fundamental problem; they consume a lot of energy and occupy a lot of area, which reduces the performance of complex circuits. This paper proposes a novel ASDB layout for designing an efficient full-adder circuit in ASDB technology. Moreover, a four-bit ASDB ripple carry adder(RCA) is designed using the proposed ASDB full-adder. The proposed ASDB full-adder not only improves the stability of the output but also surpasses the previous works, in terms of energy and accuracy,by 90% and 38%, respectively. Also, it has very favorable conditions in terms of occupied area and is resistant to DB misalignment defects.
{"title":"Towards a scalable and efficient full- adder structure in atomic silicon dangling band technology","authors":"Hadi Rasmi ,&nbsp;Mohammad Mosleh ,&nbsp;Nima Jafari Navimipour ,&nbsp;Mohammad Kheyrandish","doi":"10.1016/j.nancom.2024.100561","DOIUrl":"10.1016/j.nancom.2024.100561","url":null,"abstract":"<div><div>Atomic Silicon Dangling Bond (ASDB) is a promising new nanoscale technology for fabricating logic gates and digital circuits. This technology offers tremendous advantages, such as small size, high speed, and low power consumption. As science and technology progress, ASDB technology may eventually replace the current VLSI technology. This nanoscale technology is still in its early stages of development. Recently, many computing circuits, such as full-adder, have been designed. However, these circuits have a common fundamental problem; they consume a lot of energy and occupy a lot of area, which reduces the performance of complex circuits. This paper proposes a novel ASDB layout for designing an efficient full-adder circuit in ASDB technology. Moreover, a four-bit ASDB ripple carry adder(RCA) is designed using the proposed ASDB full-adder. The proposed ASDB full-adder not only improves the stability of the output but also surpasses the previous works, in terms of energy and accuracy,by 90% and 38%, respectively. Also, it has very favorable conditions in terms of occupied area and is resistant to DB misalignment defects.</div></div>","PeriodicalId":54336,"journal":{"name":"Nano Communication Networks","volume":"43 ","pages":"Article 100561"},"PeriodicalIF":2.9,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Beyond 5G: Exploring key enabling technologies, use cases, and future prospects of 6 G communication
IF 2.9 4区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-12-05 DOI: 10.1016/j.nancom.2024.100560
Nagarjuna Telagam , Nehru Kandasamy , Arun Kumar Manoharan , Palani Anandhi , Raji Atchudan
As the world continues to embrace digital transformation, there is a growing need for even more advanced communication technologies to meet the demands of massive connectivity, huge data rates, and low latency requirements. 6 G is the next frontier in wireless communication. This technology explores breakthroughs in different fields, such as terahertz communication, massive multiple-input multiple-output (MIMO), and even quantum communication. This review paper explains the advancements, Challenges, and future directions in the 6 G wireless communication networks. Furthermore, this paper discusses the challenges and opportunities in realizing the vision of 6 G communication, ranging from spectrum allocation and hardware design to security and ethical considerations. The key technologies, such as visible light communications, holographic messaging, and concepts on subterahertz frequencies are explained briefly. This paper also deals with practical considerations such as heterogeneous multi-layer mobile edge computing, intelligent vehicular networks, and deep learning communication systems. Furthermore, fundamental concepts such as massive MIMO and spatial division of multiple access are analyzed. The key enabling technologies that shape the 6 G use cases and their challenges are also discussed. Finally, this paper concludes by outlining the potential candidate technologies for future research and innovation, emphasizing the importance of collaborative efforts to realize the transformative potential of 6 G technology.
{"title":"Beyond 5G: Exploring key enabling technologies, use cases, and future prospects of 6 G communication","authors":"Nagarjuna Telagam ,&nbsp;Nehru Kandasamy ,&nbsp;Arun Kumar Manoharan ,&nbsp;Palani Anandhi ,&nbsp;Raji Atchudan","doi":"10.1016/j.nancom.2024.100560","DOIUrl":"10.1016/j.nancom.2024.100560","url":null,"abstract":"<div><div>As the world continues to embrace digital transformation, there is a growing need for even more advanced communication technologies to meet the demands of massive connectivity, huge data rates, and low latency requirements. 6 G is the next frontier in wireless communication. This technology explores breakthroughs in different fields, such as terahertz communication, massive multiple-input multiple-output (MIMO), and even quantum communication. This review paper explains the advancements, Challenges, and future directions in the 6 G wireless communication networks. Furthermore, this paper discusses the challenges and opportunities in realizing the vision of 6 G communication, ranging from spectrum allocation and hardware design to security and ethical considerations. The key technologies, such as visible light communications, holographic messaging, and concepts on subterahertz frequencies are explained briefly. This paper also deals with practical considerations such as heterogeneous multi-layer mobile edge computing, intelligent vehicular networks, and deep learning communication systems. Furthermore, fundamental concepts such as massive MIMO and spatial division of multiple access are analyzed. The key enabling technologies that shape the 6 G use cases and their challenges are also discussed. Finally, this paper concludes by outlining the potential candidate technologies for future research and innovation, emphasizing the importance of collaborative efforts to realize the transformative potential of 6 G technology.</div></div>","PeriodicalId":54336,"journal":{"name":"Nano Communication Networks","volume":"43 ","pages":"Article 100560"},"PeriodicalIF":2.9,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RT-SVM: Channel modeling and analysis for indoor terahertz communication scenarios
IF 2.9 4区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-12-03 DOI: 10.1016/j.nancom.2024.100551
Mohamed El Jbari, Mohamed Moussaoui
Considering the increasing demands for wireless communication networks and information system applications, the wireless sector must meet the pressing requirement for high-speed technological advances. The terahertz (THz) frequency band, spanning 0.3 to 10 THz, is of significant interest in current technological innovations and academic research in telecommunications. The THz frequency band has unique properties, including high time-resolving power (femtosecond) and low absorption. This paper proposes a THz propagation ultra-wideband (UWB) channel model and coding scheme for indoor environments starting from 0.3 THz. First, we investigated the propagation path loss model by considering the effects of transmitter dimensions, molecular absorption, and attenuation as functions of frequency and distance. We developed models for power propagation delay, multiple input multiple output (MIMO) systems and discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) response channels. Using the standard Saleh–Valenzuela model combined with Ray-tracing (RT-SVM), we studied the transmission of THz signals in indoor scenarios. We introduced physical parameters relevant to the THz indoor channel, such as line-of-sight (LoS) path loss, power distributions, temporal and spatial properties, and associations between THz multipath properties. These parameters were integrated with the RT-SVM channel model and applied to THz indoor communication. Numerical simulations demonstrate that the proposed hybrid channel model enhances THz system performance and outperforms traditional statistical and geometric-based stochastic channel models in terms of temporal and spatial dimensions, contributing to frequency loss variations.
{"title":"RT-SVM: Channel modeling and analysis for indoor terahertz communication scenarios","authors":"Mohamed El Jbari,&nbsp;Mohamed Moussaoui","doi":"10.1016/j.nancom.2024.100551","DOIUrl":"10.1016/j.nancom.2024.100551","url":null,"abstract":"<div><div>Considering the increasing demands for wireless communication networks and information system applications, the wireless sector must meet the pressing requirement for high-speed technological advances. The terahertz (THz) frequency band, spanning 0.3 to 10 THz, is of significant interest in current technological innovations and academic research in telecommunications. The THz frequency band has unique properties, including high time-resolving power (femtosecond) and low absorption. This paper proposes a THz propagation ultra-wideband (UWB) channel model and coding scheme for indoor environments starting from 0.3 THz. First, we investigated the propagation path loss model by considering the effects of transmitter dimensions, molecular absorption, and attenuation as functions of frequency and distance. We developed models for power propagation delay, multiple input multiple output (MIMO) systems and discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) response channels. Using the standard Saleh–Valenzuela model combined with Ray-tracing (RT-SVM), we studied the transmission of THz signals in indoor scenarios. We introduced physical parameters relevant to the THz indoor channel, such as line-of-sight (LoS) path loss, power distributions, temporal and spatial properties, and associations between THz multipath properties. These parameters were integrated with the RT-SVM channel model and applied to THz indoor communication. Numerical simulations demonstrate that the proposed hybrid channel model enhances THz system performance and outperforms traditional statistical and geometric-based stochastic channel models in terms of temporal and spatial dimensions, contributing to frequency loss variations.</div></div>","PeriodicalId":54336,"journal":{"name":"Nano Communication Networks","volume":"43 ","pages":"Article 100551"},"PeriodicalIF":2.9,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Nano Communication Networks
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1