Pub Date : 2024-12-09DOI: 10.1109/LAWP.2024.3514914
Marvin Joshi;Kexin Hu;Charles A. Lynch;Manos M. Tentzeris
Recent advancements in 5G/millimeter-wave (mmWave) technologies have led to the development of next- generation IoT devices that provide large-scale connectivity and high data rates. To ensure reliable communication and consistent performance, these devices must have wide angular coverage and high detectability, allowing them to maintain stable connectivity regardless of their orientation or positioning. In this work, we introduced a 3-D lens-enabled semipassive millimeter-wave identification (mmID) for next-generation Internet-of-Things (IoT) systems, capable of quasi-planar angular coverage and ultra-long range capabilities. The system employs a concave meniscus dielectric lens combined with a Rotman-lens-based mmID, achieving a peak differential radar cross section of −15.1 dBsm and near-planar 3 dB angular coverage of $pm$${text{85}}^{circ }$. Using a proof-of-concept frequency-modulated continuous wave (FMCW) radar, the mmID demonstrated detection at an ultra-long range of 68 m at incident angles of ${text{15}}^{circ }$ and ${text{85}}^{circ }$, with an average localization error of 4 cm. Furthermore, utilizing the maximum allowable 75 dBm equivalent isotropic radiated power in 5G applications, the proposed system has a projected theoretical maximum range of 1.3 km and 1.02 km at incident angles of 15$^{circ }$ and 85$^{circ }$, respectively, making it a promising solution for next-generation orientation-agnostic IoT applications.
{"title":"Achieving Quasi-Planar Coverage: A Concave Meniscus Lens-Enhanced Rotman-Lens-Based mmID for Ultra-Long-Range IoT Applications","authors":"Marvin Joshi;Kexin Hu;Charles A. Lynch;Manos M. Tentzeris","doi":"10.1109/LAWP.2024.3514914","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3514914","url":null,"abstract":"Recent advancements in 5G/millimeter-wave (mmWave) technologies have led to the development of next- generation IoT devices that provide large-scale connectivity and high data rates. To ensure reliable communication and consistent performance, these devices must have wide angular coverage and high detectability, allowing them to maintain stable connectivity regardless of their orientation or positioning. In this work, we introduced a 3-D lens-enabled semipassive millimeter-wave identification (mmID) for next-generation Internet-of-Things (IoT) systems, capable of quasi-planar angular coverage and ultra-long range capabilities. The system employs a concave meniscus dielectric lens combined with a Rotman-lens-based mmID, achieving a peak differential radar cross section of −15.1 dBsm and near-planar 3 dB angular coverage of <inline-formula><tex-math>$pm$</tex-math></inline-formula><inline-formula><tex-math>${text{85}}^{circ }$</tex-math></inline-formula>. Using a proof-of-concept frequency-modulated continuous wave (FMCW) radar, the mmID demonstrated detection at an ultra-long range of 68 m at incident angles of <inline-formula><tex-math>${text{15}}^{circ }$</tex-math></inline-formula> and <inline-formula><tex-math>${text{85}}^{circ }$</tex-math></inline-formula>, with an average localization error of 4 cm. Furthermore, utilizing the maximum allowable 75 dBm equivalent isotropic radiated power in 5G applications, the proposed system has a projected theoretical maximum range of 1.3 km and 1.02 km at incident angles of 15<inline-formula><tex-math>$^{circ }$</tex-math></inline-formula> and 85<inline-formula><tex-math>$^{circ }$</tex-math></inline-formula>, respectively, making it a promising solution for next-generation orientation-agnostic IoT applications.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"741-745"},"PeriodicalIF":3.7,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-09DOI: 10.1109/LAWP.2024.3514156
Jiangling Dou;Shuaibing Wei;Hao Gong;Haokang Chen;Yujie Chen;Tao Shen;Jian Song
A simulation-driven surrogate parallel improved adaptive genetic algorithm (SDS-IAGA) method is proposed. This method aims to improve the efficiency of topology optimization for the automated design of antenna. The optimization process involves two stages: initialization, population screening and algorithm application. In the first stage, a coarse-mesh electromagnetic (EM) simulation model combined with a current-driven search is utilized to provide a high-quality initial population. In the second stage, variable-fidelity surrogate and correction technology assist the IAGA in optimizing the antenna topology. During this stage, the IAGA uses new adaptive crossover and mutation operators based on nonlinear improvement to enhance the efficiency in reaching the target solution. To verify the efficacy of the proposed SDS-IAGA, the design task of a planar tri-band antenna with center frequencies at 2.45 GHz/3.5 GHz/5.8 GHz is completed. The experimental results demonstrate that, compared to AGA and IAGA, the SDS-IAGA enhances the optimization efficiency of antenna topology by 62.97% and 54.22%, respectively. Furthermore, compared to existing optimization methods, SDS-IAGA can complete the target design task with fewer full-wave EM simulations.
{"title":"A Simulation-Driven Surrogate Parallel Improved AGA Method for the Automated Design of Antenna","authors":"Jiangling Dou;Shuaibing Wei;Hao Gong;Haokang Chen;Yujie Chen;Tao Shen;Jian Song","doi":"10.1109/LAWP.2024.3514156","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3514156","url":null,"abstract":"A simulation-driven surrogate parallel improved adaptive genetic algorithm (SDS-IAGA) method is proposed. This method aims to improve the efficiency of topology optimization for the automated design of antenna. The optimization process involves two stages: initialization, population screening and algorithm application. In the first stage, a coarse-mesh electromagnetic (EM) simulation model combined with a current-driven search is utilized to provide a high-quality initial population. In the second stage, variable-fidelity surrogate and correction technology assist the IAGA in optimizing the antenna topology. During this stage, the IAGA uses new adaptive crossover and mutation operators based on nonlinear improvement to enhance the efficiency in reaching the target solution. To verify the efficacy of the proposed SDS-IAGA, the design task of a planar tri-band antenna with center frequencies at 2.45 GHz/3.5 GHz/5.8 GHz is completed. The experimental results demonstrate that, compared to AGA and IAGA, the SDS-IAGA enhances the optimization efficiency of antenna topology by 62.97% and 54.22%, respectively. Furthermore, compared to existing optimization methods, SDS-IAGA can complete the target design task with fewer full-wave EM simulations.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"721-725"},"PeriodicalIF":3.7,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-09DOI: 10.1109/LAWP.2024.3514150
Pinjiao Zhao;Qisong Wu;Guobing Hu;Liwei Wang;Liangtian Wan
In this letter, we introduce two generalized sparse antenna arrays designed based on the maximum interelement spacing constraint (MISC) criterion. The proposed arrays, named GEMISCE and GEMISCO, are developed by filling the holes of enhanced MISC array (EMISC) through sensor rearrangement, with a special focus on even and odd maximum interelement spacings (MIES). The GEMISCE and GEMISCO are constructed by configurating the interelement spacings (IES) set and are proved to possess filled difference coarrays. In addition, several common characteristics for the hole-free MISC-based array designs are outlined. Theoretical propositions and simulations validate the performance of the proposed arrays in terms of uniform degrees of freedom and mutual coupling, underscoring their potential to enhance target identifiability and estimation accuracy.
{"title":"Generalized Hole-Free Sparse Antenna Array Design With Even/Odd Maximum Interelement Spacing","authors":"Pinjiao Zhao;Qisong Wu;Guobing Hu;Liwei Wang;Liangtian Wan","doi":"10.1109/LAWP.2024.3514150","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3514150","url":null,"abstract":"In this letter, we introduce two generalized sparse antenna arrays designed based on the maximum interelement spacing constraint (MISC) criterion. The proposed arrays, named GEMISC<sub>E</sub> and GEMISC<sub>O</sub>, are developed by filling the holes of enhanced MISC array (EMISC) through sensor rearrangement, with a special focus on even and odd maximum interelement spacings (MIES). The GEMISC<sub>E</sub> and GEMISC<sub>O</sub> are constructed by configurating the interelement spacings (IES) set and are proved to possess filled difference coarrays. In addition, several common characteristics for the hole-free MISC-based array designs are outlined. Theoretical propositions and simulations validate the performance of the proposed arrays in terms of uniform degrees of freedom and mutual coupling, underscoring their potential to enhance target identifiability and estimation accuracy.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"716-720"},"PeriodicalIF":3.7,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-09DOI: 10.1109/LAWP.2024.3513266
María García-Fernández;Guillermo Álvarez-Narciandi;Okan Yurduseven
This letter presents an efficient method to compute the sensing matrix of computational imaging (CI) systems based on the plane wave spectrum (PWS) representation of electromagnetic waves. CI has recently been proposed as a promising paradigm to overcome some of the limitations of conventional radar imaging systems (mainly related to low acquisition speeds). As CI resorts to antennas that radiate spatially incoherent patterns to compress the scene information, the system complexity is transferred to the signal processing layer. CI systems are characterized by means of the so-called sensing matrix, which properly accounts for the spatially incoherent behavior of the antennas. The conventional method used to compute the sensing matrix is based on a point-by-point propagation between the aperture fields and the imaged scene, which is significantly time consuming. To address this limitation, this work proposes a PWS-based method, which enables to perform a plane-to-plane propagation. This results in a drastic improvement in the time required to compute the sensing matrix, without affecting its accuracy or the quality of the retrieved radar images. The proposed method has been experimentally validated with a CI system using frequency-diverse antennas.
{"title":"Efficient PWS-Based Computation of the Sensing Matrix for Computational Radar Imaging Systems","authors":"María García-Fernández;Guillermo Álvarez-Narciandi;Okan Yurduseven","doi":"10.1109/LAWP.2024.3513266","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3513266","url":null,"abstract":"This letter presents an efficient method to compute the sensing matrix of computational imaging (CI) systems based on the plane wave spectrum (PWS) representation of electromagnetic waves. CI has recently been proposed as a promising paradigm to overcome some of the limitations of conventional radar imaging systems (mainly related to low acquisition speeds). As CI resorts to antennas that radiate spatially incoherent patterns to compress the scene information, the system complexity is transferred to the signal processing layer. CI systems are characterized by means of the so-called sensing matrix, which properly accounts for the spatially incoherent behavior of the antennas. The conventional method used to compute the sensing matrix is based on a point-by-point propagation between the aperture fields and the imaged scene, which is significantly time consuming. To address this limitation, this work proposes a PWS-based method, which enables to perform a plane-to-plane propagation. This results in a drastic improvement in the time required to compute the sensing matrix, without affecting its accuracy or the quality of the retrieved radar images. The proposed method has been experimentally validated with a CI system using frequency-diverse antennas.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"701-705"},"PeriodicalIF":3.7,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-09DOI: 10.1109/LAWP.2024.3514073
Geon U Kim;Sang-Hwa Yi;Jeong Phill Kim
In this letter, we model the mutual coupling of a time-modulated array (TMA) and investigate methods for characterizing the mutual coupling using complex-quantity and magnitude-only measurements. We show that the TMA-based rotating electric vector approach is effective when using magnitude-only measurements. We discuss the selection of an appropriate preset angle and investigate the characterization of the error in the coupling coefficient caused by the preset angle error. Our experiments validate the proposed method and the associated theory.
{"title":"Characterizing an Array's Mutual Coupling via a Time-Modulated Array Technique","authors":"Geon U Kim;Sang-Hwa Yi;Jeong Phill Kim","doi":"10.1109/LAWP.2024.3514073","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3514073","url":null,"abstract":"In this letter, we model the mutual coupling of a time-modulated array (TMA) and investigate methods for characterizing the mutual coupling using complex-quantity and magnitude-only measurements. We show that the TMA-based rotating electric vector approach is effective when using magnitude-only measurements. We discuss the selection of an appropriate preset angle and investigate the characterization of the error in the coupling coefficient caused by the preset angle error. Our experiments validate the proposed method and the associated theory.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"711-715"},"PeriodicalIF":3.7,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This letter presents a wideband polarization-reconfigurable millimeter-wave antenna array using a compact feed network. The proposed geometry employs a Y-shaped feedline with a pair of p-i-n diodes to demonstrate a switching operation among three distinct polarizations: left-handed circular polarization (LHCP), right-handed circular polarization (RHCP), and linear polarization (LP). Two similar radiating segments, each comprising a pair of parasitic trapezoidal patches and three suspended metallic vias in a multilayer design, are excited through an aperture coupling technique. By careful optimization, the structure achieves the LHCP operation with a 3 dB axial ratio bandwidth (ARBW) of 24.0% and an impedance bandwidth (|S11| < −10 dB) of 30.3%, the RHCP operation with corresponding parameters as 21.7% and 24.0%, and the LP response with an impedance bandwidth of 27.45%, as well as attains a good peak gain of 6.7 ± 1.0 dBic/dBi for all states in the broadside direction. To further enhance the performance, an antenna array with 2 × 2 elements is developed with an innovative feed network, showing an ARBW of 19.61% and 23.87% for LHCP and RHCP radiation, respectively, and a significant gain enhancement of 11.7 ± 1.0 dBic/dBi. The geometries have been fabricated and measured, showing satisfactory resemblance between the responses.
{"title":"A Compact Wideband Millimeter-Wave Polarization-Reconfigurable Antenna Array","authors":"Maharana Pratap Singh;Takashi Tomura;Jiro Hirokawa;Saptarshi Ghosh","doi":"10.1109/LAWP.2024.3512792","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3512792","url":null,"abstract":"This letter presents a wideband polarization-reconfigurable millimeter-wave antenna array using a compact feed network. The proposed geometry employs a Y-shaped feedline with a pair of p-i-n diodes to demonstrate a switching operation among three distinct polarizations: left-handed circular polarization (LHCP), right-handed circular polarization (RHCP), and linear polarization (LP). Two similar radiating segments, each comprising a pair of parasitic trapezoidal patches and three suspended metallic vias in a multilayer design, are excited through an aperture coupling technique. By careful optimization, the structure achieves the LHCP operation with a 3 dB axial ratio bandwidth (ARBW) of 24.0% and an impedance bandwidth (|<italic>S</i><sub>11</sub>| < −10 dB) of 30.3%, the RHCP operation with corresponding parameters as 21.7% and 24.0%, and the LP response with an impedance bandwidth of 27.45%, as well as attains a good peak gain of 6.7 ± 1.0 dBic/dBi for all states in the broadside direction. To further enhance the performance, an antenna array with 2 × 2 elements is developed with an innovative feed network, showing an ARBW of 19.61% and 23.87% for LHCP and RHCP radiation, respectively, and a significant gain enhancement of 11.7 ± 1.0 dBic/dBi. The geometries have been fabricated and measured, showing satisfactory resemblance between the responses.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"691-695"},"PeriodicalIF":3.7,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In recent years, switchable frequency selective rasorbers (FSRs) have been extensively studied due to their in-band shielding ability. However, it is difficult to achieve dual-polarized switchable FSR with wide passband and excellent roll-off characteristics simultaneously. In this letter, a polarization-independent wideband switchable FSR with high roll-off characteristics is proposed. The FSR is composed of a three-layer architecture with a nonswitchable impedance layer, a switchable impedance layer and a switchable frequency selective surface (FSS). A switchable FSS with third-order response is utilized to achieve low profile, wideband transmission and high roll-off characteristics. Meanwhile, a wide low reflection band is achieved with the assistance of two impedance layers. Under each polarization, the device can be independently switched between rasorber and absorber modes. Finally, a prototype is manufactured and measured to demonstrate the viability of the proposed design. Compared with the existing counterparts, the proposed dual-polarized switchable FSR exhibits excellent performance in terms of wideband transmission, high roll-off characteristics and broadband absorption.
{"title":"A Polarization-Independent Wideband Switchable Rasorber With High Roll-Off Characteristics Utilizing Third-Order Switchable FSS","authors":"Yanjie Wu;Haoquan Hu;Jing Tian;Shiwen Lei;Bixiao Jiang;Bo Chen;Hao Jiang;Quan Xue","doi":"10.1109/LAWP.2024.3514899","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3514899","url":null,"abstract":"In recent years, switchable frequency selective rasorbers (FSRs) have been extensively studied due to their in-band shielding ability. However, it is difficult to achieve dual-polarized switchable FSR with wide passband and excellent roll-off characteristics simultaneously. In this letter, a polarization-independent wideband switchable FSR with high roll-off characteristics is proposed. The FSR is composed of a three-layer architecture with a nonswitchable impedance layer, a switchable impedance layer and a switchable frequency selective surface (FSS). A switchable FSS with third-order response is utilized to achieve low profile, wideband transmission and high roll-off characteristics. Meanwhile, a wide low reflection band is achieved with the assistance of two impedance layers. Under each polarization, the device can be independently switched between rasorber and absorber modes. Finally, a prototype is manufactured and measured to demonstrate the viability of the proposed design. Compared with the existing counterparts, the proposed dual-polarized switchable FSR exhibits excellent performance in terms of wideband transmission, high roll-off characteristics and broadband absorption.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"736-740"},"PeriodicalIF":3.7,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-05DOI: 10.1109/LAWP.2024.3510524
Chung Hyun Lee;Dong-Kook Kang;Kyoung Il Kwon;Kyung-Tae Kim;Dong-Yeop Na
We propose a new fast algorithm optimized for full-wave electromagnetic (EM) scattering analysis of a large-scale cloud of chaffs with arbitrary orientation, spatial distribution, and length. By leveraging the unique EM scattering characteristics in chaff clouds, we introduce the sparsification via neglecting far-field coupling strategy, which makes an impedance matrix block-banded and sparse and thereby significantly accelerates thin-wire approximate method-of-moments solvers. Our numerical studies demonstrate that the proposed algorithm can estimate the monostatic and bistatic radar cross section (RCS) of large-scale chaff clouds much faster and with greater memory efficiency than the conventional multilevel fast multipole method, while retaining the high accuracy. This algorithm is expected to be highly useful for RCS estimation of large-scale chaff clouds in practical scenarios, serving as a cost-effective ground-truth generator.
{"title":"Fast Algorithm for Full-Wave EM Scattering Analysis of Large-Scale Chaff Cloud With Arbitrary Orientation, Spatial Distribution, and Length","authors":"Chung Hyun Lee;Dong-Kook Kang;Kyoung Il Kwon;Kyung-Tae Kim;Dong-Yeop Na","doi":"10.1109/LAWP.2024.3510524","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3510524","url":null,"abstract":"We propose a new fast algorithm optimized for full-wave electromagnetic (EM) scattering analysis of a large-scale cloud of chaffs with arbitrary orientation, spatial distribution, and length. By leveraging the unique EM scattering characteristics in chaff clouds, we introduce the <italic>sparsification via neglecting far-field coupling</i> strategy, which makes an impedance matrix block-banded and sparse and thereby significantly accelerates thin-wire approximate method-of-moments solvers. Our numerical studies demonstrate that the proposed algorithm can estimate the monostatic and bistatic radar cross section (RCS) of large-scale chaff clouds much faster and with greater memory efficiency than the conventional multilevel fast multipole method, while retaining the high accuracy. This algorithm is expected to be highly useful for RCS estimation of large-scale chaff clouds in practical scenarios, serving as a cost-effective ground-truth generator.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"631-635"},"PeriodicalIF":3.7,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-05DOI: 10.1109/LAWP.2024.3511458
Hao Qin;Xingqi Zhang;Weibin Hou;Xinyue Zhang
The investigation of time-of-arrival (ToA) estimation techniques is of great practical interest for the deployment of wireless networks. Moreover, reliable ToA estimation can significantly enhance the performance and reliability of various applications, such as accurate localization, precise synchronization, and efficient data transmission in wireless communication systems. This letter proposes a novel fast parabolic wave equation-based ToA estimation algorithm. By integrating processes for extracting primary Fourier coefficients and designing sparse matrices, our method achieves notable computational efficiency, rendering it highly suitable for real-time applications. Simulation results of the proposed model and conventional parabolic method-based model are compared. In addition, the relative advantages of the proposed model are demonstrated through a case study conducted in a real factory environment.
{"title":"Fast Parabolic Wave Equation-Based Time-of-Arrival Estimation Exploiting Sparse Matrices","authors":"Hao Qin;Xingqi Zhang;Weibin Hou;Xinyue Zhang","doi":"10.1109/LAWP.2024.3511458","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3511458","url":null,"abstract":"The investigation of time-of-arrival (ToA) estimation techniques is of great practical interest for the deployment of wireless networks. Moreover, reliable ToA estimation can significantly enhance the performance and reliability of various applications, such as accurate localization, precise synchronization, and efficient data transmission in wireless communication systems. This letter proposes a novel fast parabolic wave equation-based ToA estimation algorithm. By integrating processes for extracting primary Fourier coefficients and designing sparse matrices, our method achieves notable computational efficiency, rendering it highly suitable for real-time applications. Simulation results of the proposed model and conventional parabolic method-based model are compared. In addition, the relative advantages of the proposed model are demonstrated through a case study conducted in a real factory environment.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 3","pages":"661-665"},"PeriodicalIF":3.7,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-04DOI: 10.1109/LAWP.2024.3485317
Shu-Lin Chen;Geng-Bo Wu;Astrid Algaba-Brazález;Eva Rajo-Iglesias;Y. Jay Guo;Chi Hou Chan
6G technologies are poised to revolutionize telecommunications in the coming decade, building on the commercial deployment of 5G systems. The evolution of 6G is expected to unlock transformative applications, such as connected intelligence, smart cities, artificial intelligence (AI), and digital twins, among others. To support these advancements, antennas and metasurfaces, being fundamental components of wireless systems, will play a pivotal role in shaping and expanding 6G's capabilities.
{"title":"Guest Editorial: Special Cluster on Intelligent and Highly Efficient Antennas/Metasurfaces for 6G","authors":"Shu-Lin Chen;Geng-Bo Wu;Astrid Algaba-Brazález;Eva Rajo-Iglesias;Y. Jay Guo;Chi Hou Chan","doi":"10.1109/LAWP.2024.3485317","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3485317","url":null,"abstract":"6G technologies are poised to revolutionize telecommunications in the coming decade, building on the commercial deployment of 5G systems. The evolution of 6G is expected to unlock transformative applications, such as connected intelligence, smart cities, artificial intelligence (AI), and digital twins, among others. To support these advancements, antennas and metasurfaces, being fundamental components of wireless systems, will play a pivotal role in shaping and expanding 6G's capabilities.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"23 11","pages":"3521-3528"},"PeriodicalIF":3.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10778126","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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