IEEE Wireless Communications Letters最新文献

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Information Age-Based Task Splitting Scheme for Edge Computing-Enabled Networks 基于信息时代的边缘计算网络任务分工方案
IF 6.3 3区 计算机科学
IEEE Wireless Communications Letters Pub Date : 2024-11-15 DOI: 10.1109/lwc.2024.3492095
Jinwoong Kim, Jemin Lee
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引用次数: 0
Model-Driven Iterative Super-Resolution Channel Estimation for Wideband Near-Field Extremely Large-Scale MIMO Systems 宽带近场超大规模多输入多输出系统的模型驱动迭代超分辨率信道估计
IF 6.3 3区 计算机科学
IEEE Wireless Communications Letters Pub Date : 2024-11-15 DOI: 10.1109/lwc.2024.3497598
Xuhui Zheng, Fangjiong Chen, Cui Yang, Yuhua Ai
{"title":"Model-Driven Iterative Super-Resolution Channel Estimation for Wideband Near-Field Extremely Large-Scale MIMO Systems","authors":"Xuhui Zheng, Fangjiong Chen, Cui Yang, Yuhua Ai","doi":"10.1109/lwc.2024.3497598","DOIUrl":"https://doi.org/10.1109/lwc.2024.3497598","url":null,"abstract":"","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"39 1","pages":""},"PeriodicalIF":6.3,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142643064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Joint Antenna Activation and Power Allocation for Energy-Efficient Cell-Free Massive MIMO Systems 高能效无小区大规模多输入多输出系统的联合天线激活和功率分配
IF 6.3 3区 计算机科学
IEEE Wireless Communications Letters Pub Date : 2024-11-14 DOI: 10.1109/lwc.2024.3497980
Bin Yan, Zheng Wang, Jiayi Zhang, Yongming Huang
{"title":"Joint Antenna Activation and Power Allocation for Energy-Efficient Cell-Free Massive MIMO Systems","authors":"Bin Yan, Zheng Wang, Jiayi Zhang, Yongming Huang","doi":"10.1109/lwc.2024.3497980","DOIUrl":"https://doi.org/10.1109/lwc.2024.3497980","url":null,"abstract":"","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"35 1","pages":""},"PeriodicalIF":6.3,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Holographic MIMO Surfaces: A Channel Model Approximation in the Electromagnetic Domain 全息多输入多输出表面:电磁域中的信道模型近似值
IF 6.3 3区 计算机科学
IEEE Wireless Communications Letters Pub Date : 2024-11-14 DOI: 10.1109/lwc.2024.3498597
Giovanni Iacovelli, Claudio Iacovelli, Symeon Chatzinotas
{"title":"Holographic MIMO Surfaces: A Channel Model Approximation in the Electromagnetic Domain","authors":"Giovanni Iacovelli, Claudio Iacovelli, Symeon Chatzinotas","doi":"10.1109/lwc.2024.3498597","DOIUrl":"https://doi.org/10.1109/lwc.2024.3498597","url":null,"abstract":"","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"128 1","pages":""},"PeriodicalIF":6.3,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Hybrid Active-Passive STAR-RIS-based NOMA Systems: Energy/Rate-Reliability Trade-offs and Rate Adaptation 基于 STAR-RIS 的主动-被动混合 NOMA 系统:能量/速率-可靠性权衡与速率自适应
IF 6.3 3区 计算机科学
IEEE Wireless Communications Letters Pub Date : 2024-11-14 DOI: 10.1109/lwc.2024.3497978
Thai-Hoc Vu, Tan N. Nguyen, Tien-Tung Nguyen, Sunghwan Kim
{"title":"Hybrid Active-Passive STAR-RIS-based NOMA Systems: Energy/Rate-Reliability Trade-offs and Rate Adaptation","authors":"Thai-Hoc Vu, Tan N. Nguyen, Tien-Tung Nguyen, Sunghwan Kim","doi":"10.1109/lwc.2024.3497978","DOIUrl":"https://doi.org/10.1109/lwc.2024.3497978","url":null,"abstract":"","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"69 1","pages":""},"PeriodicalIF":6.3,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A Target Parameters Estimation Method for CP-OTFS Based Terrestrial Radar System 基于 CP-OTFS 的地面雷达系统的目标参数估计方法
IF 6.3 3区 计算机科学
IEEE Wireless Communications Letters Pub Date : 2024-11-14 DOI: 10.1109/lwc.2024.3497959
Qilong Miao, Jing Liang, Ge Zhang, Jiachen Han
{"title":"A Target Parameters Estimation Method for CP-OTFS Based Terrestrial Radar System","authors":"Qilong Miao, Jing Liang, Ge Zhang, Jiachen Han","doi":"10.1109/lwc.2024.3497959","DOIUrl":"https://doi.org/10.1109/lwc.2024.3497959","url":null,"abstract":"","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"20 1","pages":""},"PeriodicalIF":6.3,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
mmAlert: mmWave Link Blockage Prediction via Passive Sensing mmAlert:毫米波链路阻塞预测通过被动感知
IF 6.3 3区 计算机科学
IEEE Wireless Communications Letters Pub Date : 2023-08-11 DOI: 10.1109/LWC.2023.3304320
Chao Yu;Yifei Sun;Yan Luo;Rui Wang
{"title":"mmAlert: mmWave Link Blockage Prediction via Passive Sensing","authors":"Chao Yu;Yifei Sun;Yan Luo;Rui Wang","doi":"10.1109/LWC.2023.3304320","DOIUrl":"10.1109/LWC.2023.3304320","url":null,"abstract":"In this letter, the mmAlert system, predicting millimeter wave (mmWave) link blockage during data communication, is elaborated and demonstrated. The passive sensing method is adopted for mobile blocker detection, where two receive beams with separated radio frequency (RF) chains are equipped at the data communication receiver. One receive beam is aligned to the direction of line-of-sight (LoS) path, and the other one periodically sweeps the region close to the LoS path. By comparing the signals received by the above two beams, the Doppler frequencies of the signal scattered from the mobile blocker can be detected. Furthermore, by tracking the Doppler frequencies and the angle-of-arrivals (AoAs) of the scattered signals, the trajectory of the mobile blocker can be estimated, such that the potential link blockage can be predicted by assuming consistent mobile velocity. It is demonstrated via experiments that the mmAlert system can always detect the motions of the walking person close to the LoS path, and predict 90% of the LoS blockage with sensing time of 1.4 seconds.","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"12 12","pages":"2008-2012"},"PeriodicalIF":6.3,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41268427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 1
Joint Receive and Passive Beamforming Optimization for RIS-Assisted Uplink RSMA Systems ris辅助上行RSMA系统联合接收和无源波束成形优化
IF 6.3 3区 计算机科学
IEEE Wireless Communications Letters Pub Date : 2023-04-13 DOI: 10.1109/LWC.2023.3266883
Qiang Sun;Hongwu Liu;Shen Yan;Theodoros A. Tsiftsis;Jinhong Yuan
{"title":"Joint Receive and Passive Beamforming Optimization for RIS-Assisted Uplink RSMA Systems","authors":"Qiang Sun;Hongwu Liu;Shen Yan;Theodoros A. Tsiftsis;Jinhong Yuan","doi":"10.1109/LWC.2023.3266883","DOIUrl":"10.1109/LWC.2023.3266883","url":null,"abstract":"In this letter, we investigate the joint optimization of transmit power allocation and receive/passive beamforming in a reconfigurable intelligent surface (RIS)-assisted uplink two-user rate-splitting multiple access (RSMA) system. Aiming at maximizing the achievable rate of one user subject to another user’s quality of service (QoS) requirements, RIS is deployed to assist the uplink transmissions from both users to a multi-antenna base station (BS). We decouple the non-convex rate maximization problem into three sub-problems and propose an alternating optimization (AO) algorithm to optimize the receive/passive beamforming and transmit power allocation. A closed-form expression is derived for the sub-problem of transmit power allocation by using the optimal decoding order and the concave-convex fractional programming beamforming problems are converted to convex ones by using the Charnes-Cooper transform. Then, a penalty term approach is applied to effectively solve the rank-1 constrained beamforming subproblems. Simulation results verify that the proposed AO algorithm attains a higher achievable rate than the existing benchmark schemes.","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"12 7","pages":"1204-1208"},"PeriodicalIF":6.3,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41256277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 1
Phase and 3-D Placement Optimization for Rate Enhancement in RIS-Assisted UAV Networks ris辅助无人机网络速率提升的相位和三维布局优化
IF 6.3 3区 计算机科学
IEEE Wireless Communications Letters Pub Date : 2023-03-30 DOI: 10.1109/LWC.2023.3263224
Maham Misbah;Zeeshan Kaleem;Waqas Khalid;Chau Yuen;Abbas Jamalipour
{"title":"Phase and 3-D Placement Optimization for Rate Enhancement in RIS-Assisted UAV Networks","authors":"Maham Misbah;Zeeshan Kaleem;Waqas Khalid;Chau Yuen;Abbas Jamalipour","doi":"10.1109/LWC.2023.3263224","DOIUrl":"10.1109/LWC.2023.3263224","url":null,"abstract":"In this letter, we aim at improving the system sum-rate performance of an assisted aerial base station (ABS) network by considering use of reconfigurable intelligent surface (RIS). We jointly optimize the RIS phase shifts and ABS altitudes using the proposed conjugate gradient and particle swarm optimization (CG-PSO) scheme. Moreover, we divide the problem into sub-problems and solve them using an alternative optimization method. First, an optimal RIS phase shift is computed using the conjugate gradient (CG) under the fixed ABS altitude and varying transmit power. Finally, we find the optimal ABS altitude using particle swarm optimization (PSO), which results in improved sum rate under the optimized RIS phase shift. The results show that the CG-PSO scheme significantly improves the system sum rate compared to the baseline schemes.","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"12 7","pages":"1135-1138"},"PeriodicalIF":6.3,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41325903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 5
Beamspace Modulation for Near Field Capacity Improvement in XL-MIMO Communications 用于提高XL-MIMO通信近场容量的波束空间调制
IF 6.3 3区 计算机科学
IEEE Wireless Communications Letters Pub Date : 2023-03-18 DOI: 10.1109/LWC.2023.3277666
Shuaishuai Guo;Kaiqian Qu
{"title":"Beamspace Modulation for Near Field Capacity Improvement in XL-MIMO Communications","authors":"Shuaishuai Guo;Kaiqian Qu","doi":"10.1109/LWC.2023.3277666","DOIUrl":"10.1109/LWC.2023.3277666","url":null,"abstract":"The spatial degrees of freedom (DoFs) greatly increase in the near-field region of millimeter wave or terahertz multiple-input multiple-output communications with extremely large antenna arrays (XL-MIMO). To employ the increased spatial DoFs, a beamspace modulation (BM) strategy is introduced to the near field of XL-MIMO. BM can work with a fixed small number of RF chains. It exploits the increased spatial DoFs as modulation resources for capacity improvements. The achievable spectral efficiency and its asymptotic capacity are analyzed. Both theoretical and simulation results show that the proposed BM strategy considerably outperforms the existing benchmark that only selects the best beamspace for data transmission in terms of spectral efficiency.","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"12 8","pages":"1434-1438"},"PeriodicalIF":6.3,"publicationDate":"2023-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41491574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 1
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