In multi-user multiple input multiple output (MIMO) systems, the non-orthogonal multiple access (NOMA) method based spatial modulation (SM) and generalized spatial modulation (GSM) can mitigate inter-user interference. However, the spectral efficiency of these methods is restricted because of antenna configuration. In this paper, a combination of the variable active antenna spatial modulation (VASM) scheme with the downlink power domain NOMA system, so-called NOMA-VASM, is proposed to improve spectral efficiency while main-taining mitigation of inter-user interference. In the novel NOMA-VASM, the antenna configuration is arbitrary and the number of enabled transmitting antennas (TAs) can be altered, so it is easier to increase spectral efficiency compared to NOMA-SM and NOMA-GSM. Monte Carlo simulations were performed under various scenarios, and the results showed that NOMA-VASM outperformed conventional NOMA-SM and NOMA-GSM in terms of spectral efficiency, average bit-error-rate (ABER) performance, and required number of TAs.
{"title":"Combined Variable Active Antenna Spatial Modulation and NOMA to Enhance Spectral Efficiency for Multiple Users MIMO Systems","authors":"Tran Viet Vinh, Pham Thanh Hiep, Nguyen Thu Phuong","doi":"10.1109/ATC55345.2022.9943045","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9943045","url":null,"abstract":"In multi-user multiple input multiple output (MIMO) systems, the non-orthogonal multiple access (NOMA) method based spatial modulation (SM) and generalized spatial modulation (GSM) can mitigate inter-user interference. However, the spectral efficiency of these methods is restricted because of antenna configuration. In this paper, a combination of the variable active antenna spatial modulation (VASM) scheme with the downlink power domain NOMA system, so-called NOMA-VASM, is proposed to improve spectral efficiency while main-taining mitigation of inter-user interference. In the novel NOMA-VASM, the antenna configuration is arbitrary and the number of enabled transmitting antennas (TAs) can be altered, so it is easier to increase spectral efficiency compared to NOMA-SM and NOMA-GSM. Monte Carlo simulations were performed under various scenarios, and the results showed that NOMA-VASM outperformed conventional NOMA-SM and NOMA-GSM in terms of spectral efficiency, average bit-error-rate (ABER) performance, and required number of TAs.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131408222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-20DOI: 10.1109/ATC55345.2022.9943016
Tran Hien Bui, S. Ta, Khac Kiem Nguyen, Chien Dao-Ngoc, N. Nguyen-Trong
A low-profile dual-band antenna with polarization/pattern diversity is proposed for 2.4/5-GHz wireless local area network (WLAN) applications. The lower-band element is composed of four shorted patches, which are excited in-phase and equal magnitude to generate omnidirectional radiation pattern with vertical polarization. The higher-band element is a differential-fed circular patch encompassed by eight mushroom-type structures to generate a wideband broadside dual-polarized radiation. The internal corners of the lower-band patches are truncated to embed the higher-band element without any overlap, and consequently, achieve a compact size. The final design with overall size of 0.57λ2.4-GHz× 0.57λ2.4-GHz × 0.03λ2.4-GHz yields a 10-dB return-loss bandwidth of 70/1050 MHz and realized gain of 0.39/9.9 dBi at 2.4/5-GHz WLAN bands, respectively. Also, the antenna achieves an isolation of ≥30 dB through both lower- and upper-bands.
提出了一种用于2.4/ 5ghz无线局域网(WLAN)应用的具有极化/方向分集的低轮廓双频天线。低波段单元由四个短片组成，四个短片同相、等幅激发，产生垂直极化的全向辐射图。高波段元件是由八个蘑菇型结构包围的微分馈电圆形贴片，以产生宽带宽侧双极化辐射。截断低频带贴片的内角以嵌入高频带元件而没有任何重叠，从而实现紧凑的尺寸。最终设计的总体尺寸为0.57λ2.4- ghzx 0.57λ2.4 ghz x 0.03λ2.4-GHz，在2.4/5 ghz频段上的10db回波损耗带宽为70/1050 MHz，增益为0.39/9.9 dBi。此外，该天线在上下频段均实现了≥30db的隔离。
{"title":"Dual-Band Antenna With Pattern/Polarization Diversity For 2.4/5-GHz WLAN Applications","authors":"Tran Hien Bui, S. Ta, Khac Kiem Nguyen, Chien Dao-Ngoc, N. Nguyen-Trong","doi":"10.1109/ATC55345.2022.9943016","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9943016","url":null,"abstract":"A low-profile dual-band antenna with polarization/pattern diversity is proposed for 2.4/5-GHz wireless local area network (WLAN) applications. The lower-band element is composed of four shorted patches, which are excited in-phase and equal magnitude to generate omnidirectional radiation pattern with vertical polarization. The higher-band element is a differential-fed circular patch encompassed by eight mushroom-type structures to generate a wideband broadside dual-polarized radiation. The internal corners of the lower-band patches are truncated to embed the higher-band element without any overlap, and consequently, achieve a compact size. The final design with overall size of 0.57λ2.4-GHz× 0.57λ2.4-GHz × 0.03λ2.4-GHz yields a 10-dB return-loss bandwidth of 70/1050 MHz and realized gain of 0.39/9.9 dBi at 2.4/5-GHz WLAN bands, respectively. Also, the antenna achieves an isolation of ≥30 dB through both lower- and upper-bands.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133580620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-20DOI: 10.1109/ATC55345.2022.9943004
Thu Nguyen, K. Vo, Thu-Thuy Ta, Tu-Anh Nguven-Hoang, N. Dinh
Blockchain and big data are two technologies with great potential and great influence in the field of information technology. Big data research applied in many fields of society. However, big data has features as large size, temporal events, complex structure, and incompleteness. Therefore, big data exists many challenges that need to be researched such as data security, data integrity, anti-fraud, data quality, data management, data analysis, and data mining. Blockchain technology has the characteristics of distribution, immutability, transparency, and security. Therefore, integrating blockchain technology into big data is a promising solution to overcome these challenges. However, blockchain technology is not really mature yet. Researchers need to identify the problem and have a suitable approach for applying blockchain technology to big data. In this article, we survey and present a complete picture of the integrated base. At the same time, cloud services for big data, application range, and blockchain big data projects also presented. From there, the researchers were able to clearly identify the development challenges and future directions for this exciting topic.
{"title":"The benefits and challenges of applying Blockchain technology into Big Data: A literature review","authors":"Thu Nguyen, K. Vo, Thu-Thuy Ta, Tu-Anh Nguven-Hoang, N. Dinh","doi":"10.1109/ATC55345.2022.9943004","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9943004","url":null,"abstract":"Blockchain and big data are two technologies with great potential and great influence in the field of information technology. Big data research applied in many fields of society. However, big data has features as large size, temporal events, complex structure, and incompleteness. Therefore, big data exists many challenges that need to be researched such as data security, data integrity, anti-fraud, data quality, data management, data analysis, and data mining. Blockchain technology has the characteristics of distribution, immutability, transparency, and security. Therefore, integrating blockchain technology into big data is a promising solution to overcome these challenges. However, blockchain technology is not really mature yet. Researchers need to identify the problem and have a suitable approach for applying blockchain technology to big data. In this article, we survey and present a complete picture of the integrated base. At the same time, cloud services for big data, application range, and blockchain big data projects also presented. From there, the researchers were able to clearly identify the development challenges and future directions for this exciting topic.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":"45 7-8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114115336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-20DOI: 10.1109/ATC55345.2022.9942992
Hoa Tran-Dang, Dong-Seong Kim
Fog computing networks have been widely integrated in IoT-based systems to improve the quality of services (QoS) such as low response service delay through efficient offloading algorithms. However, designing an efficient offloading solution is still facing many challenges including the complicated heterogeneity of fog computing devices and complex computation tasks. In addition, the need for a scalable and distributed algorithm with low computational complexity can be unachievable by global optimization approaches with centralized information management in the dense fog networks. In these regards, this paper proposes a distributed computation offloading framework (MATO) for offloading the splittable tasks using matching theory. Through the extensive simulation analysis, the proposed approaches show potential advantages in reducing the average delay significantly in the systems compared to some related works.
{"title":"A Many-to-One Matching based Task Offloading (MATO) Scheme for Fog computing-enabled IoT Systems","authors":"Hoa Tran-Dang, Dong-Seong Kim","doi":"10.1109/ATC55345.2022.9942992","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9942992","url":null,"abstract":"Fog computing networks have been widely integrated in IoT-based systems to improve the quality of services (QoS) such as low response service delay through efficient offloading algorithms. However, designing an efficient offloading solution is still facing many challenges including the complicated heterogeneity of fog computing devices and complex computation tasks. In addition, the need for a scalable and distributed algorithm with low computational complexity can be unachievable by global optimization approaches with centralized information management in the dense fog networks. In these regards, this paper proposes a distributed computation offloading framework (MATO) for offloading the splittable tasks using matching theory. Through the extensive simulation analysis, the proposed approaches show potential advantages in reducing the average delay significantly in the systems compared to some related works.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122521114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-20DOI: 10.1109/ATC55345.2022.9943022
Tran Nguyen Thi Nhat Le, Hoang Dang Cuong, Tang The Toan, Ha Quoc Anh, M. Le, N. Dinh
In this paper, a broadband reconfigurable reflectarray antenna (RRA) based on a polarization rotation unit cell is proposed. The reconfigurable polarization rotation unit cell utilizes just a single substrate layer and 4 PIN diodes. By switching ON/OFF states of PIN diodes, the reflective phase of the unit cell shifts 180°. A 16×16 RRA is designed, showing an excellent 1-dB gain bandwidth, from 12.5 GHz to 16 GHz in the YOZ plane. The proposed RRA also has a good 2D beam scanning performance with an angle range from − 50° to + 50°.
{"title":"A Broadband Polarization-Rotation Reconfigurable Reflectarray Antenna","authors":"Tran Nguyen Thi Nhat Le, Hoang Dang Cuong, Tang The Toan, Ha Quoc Anh, M. Le, N. Dinh","doi":"10.1109/ATC55345.2022.9943022","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9943022","url":null,"abstract":"In this paper, a broadband reconfigurable reflectarray antenna (RRA) based on a polarization rotation unit cell is proposed. The reconfigurable polarization rotation unit cell utilizes just a single substrate layer and 4 PIN diodes. By switching ON/OFF states of PIN diodes, the reflective phase of the unit cell shifts 180°. A 16×16 RRA is designed, showing an excellent 1-dB gain bandwidth, from 12.5 GHz to 16 GHz in the YOZ plane. The proposed RRA also has a good 2D beam scanning performance with an angle range from − 50° to + 50°.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131558195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-20DOI: 10.1109/ATC55345.2022.9942972
Van-Tai Nguyen, Van-Chuc Hoang, Xuan-Ha Nguyen, Kim-Hung Le
With the rapid development of intelligent devices and high-speed networks, the popularity of Internet services and the Internet of Things (IoT) has been increasing significantly in the last decade. This leads to the explosion of data exchanged over the Internet, also known as the Big Data era, which has posed several challenges in preventing security threats, especially for intrusion detection systems (IDS) due to high data velocity. In this paper, we propose a Distributed Network Intrusion Detection System (DisIDS) that accurately detects security threats by gathering statistical information about flows from software-defined network (SDN) switches in real-time and identifying abnormal traffic patterns using a distributed machine learning model. Evaluation results on a simulated system show that our proposal could identify several security threats with high accuracy (94.7% f1-score) and a relatively low false alarm rate. Moreover, DisIDS architecture is designed using highly scalable components to accelerate the detection rate.
{"title":"Towards a high-performance threat-aware system for software-defined networks","authors":"Van-Tai Nguyen, Van-Chuc Hoang, Xuan-Ha Nguyen, Kim-Hung Le","doi":"10.1109/ATC55345.2022.9942972","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9942972","url":null,"abstract":"With the rapid development of intelligent devices and high-speed networks, the popularity of Internet services and the Internet of Things (IoT) has been increasing significantly in the last decade. This leads to the explosion of data exchanged over the Internet, also known as the Big Data era, which has posed several challenges in preventing security threats, especially for intrusion detection systems (IDS) due to high data velocity. In this paper, we propose a Distributed Network Intrusion Detection System (DisIDS) that accurately detects security threats by gathering statistical information about flows from software-defined network (SDN) switches in real-time and identifying abnormal traffic patterns using a distributed machine learning model. Evaluation results on a simulated system show that our proposal could identify several security threats with high accuracy (94.7% f1-score) and a relatively low false alarm rate. Moreover, DisIDS architecture is designed using highly scalable components to accelerate the detection rate.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":"184 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132584574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-20DOI: 10.1109/ATC55345.2022.9943013
M. Tran, Hiep Nguyen, Ha Pham, Toan Do, Quy Dang
Beamforming is a core physical layer technique of the New Radio (NR) air interface, which is the standard for 5G specified by 3GPP. Beamforming can improve system coverage and capacity by focusing transmitted energy toward a certain region or user equipment rather than radiating energy in many directions. However it requires accurate control of relative phases between transmission chains in order to form the desirable beams. In practice, due to unavoidable properties of the hardware such as the unequal lengths of RF transmission lines, the imperfect synchronization between all the active chips, those relative phases can not be guaranteed unless those components are properly calibrated. In this paper, we propose a real-time calibration method for digital beamforming in 5G systems with validation using measurement on hardware prototype. By using a built-in calibration line which is connected to all transceivers in the circuit of the radio unit, reference signal for calibration can be transmitted and captured in real time. The captured data then be processed using the proposed calibration algorithm to extract the relative phase errors between transceivers, then they can be compensated to suppress those errors to certain threshold in order to form the desirable beams. Measurements on hardware prototype show that using the proposed calibration procedure, the radiation patterns are in good agreement with simulation for different beam angles.
{"title":"Real-time Calibration for Digital Beamforming in 5G Systems With Experiments on Testbed","authors":"M. Tran, Hiep Nguyen, Ha Pham, Toan Do, Quy Dang","doi":"10.1109/ATC55345.2022.9943013","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9943013","url":null,"abstract":"Beamforming is a core physical layer technique of the New Radio (NR) air interface, which is the standard for 5G specified by 3GPP. Beamforming can improve system coverage and capacity by focusing transmitted energy toward a certain region or user equipment rather than radiating energy in many directions. However it requires accurate control of relative phases between transmission chains in order to form the desirable beams. In practice, due to unavoidable properties of the hardware such as the unequal lengths of RF transmission lines, the imperfect synchronization between all the active chips, those relative phases can not be guaranteed unless those components are properly calibrated. In this paper, we propose a real-time calibration method for digital beamforming in 5G systems with validation using measurement on hardware prototype. By using a built-in calibration line which is connected to all transceivers in the circuit of the radio unit, reference signal for calibration can be transmitted and captured in real time. The captured data then be processed using the proposed calibration algorithm to extract the relative phase errors between transceivers, then they can be compensated to suppress those errors to certain threshold in order to form the desirable beams. Measurements on hardware prototype show that using the proposed calibration procedure, the radiation patterns are in good agreement with simulation for different beam angles.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127548682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-20DOI: 10.1109/ATC55345.2022.9942966
Chi Dat Pham, ThanhTuan Nguyen, N. Ha-Van, M. Le
Megahertz-range wireless power transfer (WPT) system through inductive coupling has become increasingly popular during the past years. As a critical part of high-frequency WPT, parasitic components of the coils must be carefully considered because of their great impacts on the system's operation. In this paper, we propose an analytical method to deal with this problem by adding compensation capacitors on each side of the coils and calculating the appropriate value of these capacitors to attain the maximum load power and efficiency. This work is performed on the 6.78-MHz WPT system to illustrate the characteristics and enhance the robustness of the system.
{"title":"Parasitic Capacitance Analysis in High-Frequency Wireless Power Transfer Systems","authors":"Chi Dat Pham, ThanhTuan Nguyen, N. Ha-Van, M. Le","doi":"10.1109/ATC55345.2022.9942966","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9942966","url":null,"abstract":"Megahertz-range wireless power transfer (WPT) system through inductive coupling has become increasingly popular during the past years. As a critical part of high-frequency WPT, parasitic components of the coils must be carefully considered because of their great impacts on the system's operation. In this paper, we propose an analytical method to deal with this problem by adding compensation capacitors on each side of the coils and calculating the appropriate value of these capacitors to attain the maximum load power and efficiency. This work is performed on the 6.78-MHz WPT system to illustrate the characteristics and enhance the robustness of the system.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129768859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-20DOI: 10.1109/ATC55345.2022.9943041
Thu A. Pham, N. Dang
This paper aims to take a new look at a novel security solution for 5G-based Internet of things (IoT) networks using quantum key distribution (QKD). Quantum keys are created and sent from a key distribution server to IoT gateways thanks to radio-over-fiber (RoF) systems. More specifically, the raw key is encoded into the intensity of radio-frequency subcarrier before being sent to the gNB by optical fiber. It is then wirelessly forwarded to IoT gateways through radio frequency links. The major findings of the study reveal that the proposed system is an effective approach in order to distribute the quantum key with low quantum bit error rate and high secret key rate for 5G-based IoT networks.
{"title":"Quantum Key Distribution: A Security Solution for 5G-based IoT Networks","authors":"Thu A. Pham, N. Dang","doi":"10.1109/ATC55345.2022.9943041","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9943041","url":null,"abstract":"This paper aims to take a new look at a novel security solution for 5G-based Internet of things (IoT) networks using quantum key distribution (QKD). Quantum keys are created and sent from a key distribution server to IoT gateways thanks to radio-over-fiber (RoF) systems. More specifically, the raw key is encoded into the intensity of radio-frequency subcarrier before being sent to the gNB by optical fiber. It is then wirelessly forwarded to IoT gateways through radio frequency links. The major findings of the study reveal that the proposed system is an effective approach in order to distribute the quantum key with low quantum bit error rate and high secret key rate for 5G-based IoT networks.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130825444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-20DOI: 10.1109/ATC55345.2022.9943012
T. H. Phuoc Nguyen, Huynh Nguyen, Bang Khuc
This study evaluated the performance of various channel estimation techniques for the physical uplink control channel, which plays a crucial role in the state-of-the-art telecommunication 5G NR technology. We considered the conventional least-square (LS), DFT-based LS, moving-average LS, and minimum-mean-square-error (MMSE) algorithms with various receive antennas numbers (2Rx, 16Rx, and 32Rx) in relatively low signal-to-noise ratio. A simulation model was developed for block error rate (BLER) evaluation of two test cases with Reed-Muller and Polar codes. Simulation results show that the MMSE algorithm provides the best performance for all considered receive antennas numbers. However, the moving-average LS algorithm should be a suitable choice since it provides a good trade-off between performance and complexity. Finally, it is shown that the energy efficiency of the system can be significantly increased by 12–14 dB when using 32Rx instead of 2Rx. The results in this paper can provide specific system-oriented information for designing and implementing 5G NR systems.
{"title":"Performance Evaluation of Channel Estimation Methods for 5G NR Uplink Control Channel in the Scenario of Low Signal-to-Noise Ratios","authors":"T. H. Phuoc Nguyen, Huynh Nguyen, Bang Khuc","doi":"10.1109/ATC55345.2022.9943012","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9943012","url":null,"abstract":"This study evaluated the performance of various channel estimation techniques for the physical uplink control channel, which plays a crucial role in the state-of-the-art telecommunication 5G NR technology. We considered the conventional least-square (LS), DFT-based LS, moving-average LS, and minimum-mean-square-error (MMSE) algorithms with various receive antennas numbers (2Rx, 16Rx, and 32Rx) in relatively low signal-to-noise ratio. A simulation model was developed for block error rate (BLER) evaluation of two test cases with Reed-Muller and Polar codes. Simulation results show that the MMSE algorithm provides the best performance for all considered receive antennas numbers. However, the moving-average LS algorithm should be a suitable choice since it provides a good trade-off between performance and complexity. Finally, it is shown that the energy efficiency of the system can be significantly increased by 12–14 dB when using 32Rx instead of 2Rx. The results in this paper can provide specific system-oriented information for designing and implementing 5G NR systems.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127038298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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