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Power Minimization for Integrated Sensing, Communication, and Power Transmission Systems
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-10-14 DOI: 10.1109/LCOMM.2024.3479233
Chenfei Xie;Yonghui Li;Lu Chen;Weimin Shi;Zhongpei Zhang;Yue Xiu
{"title":"Power Minimization for Integrated Sensing, Communication, and Power Transmission Systems","authors":"Chenfei Xie;Yonghui Li;Lu Chen;Weimin Shi;Zhongpei Zhang;Yue Xiu","doi":"10.1109/LCOMM.2024.3479233","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3479233","url":null,"abstract":"As the Internet of Things (IoT) continue to advance, the integration of massive devices into wireless networks for communication, sensing, and energy harvesting tasks is becoming increasingly prevalent. This trend has led to the emergence of Integrated Sensing, Communication, and Power Transmission (ISCPT) systems. However, with the proliferation of functionalities within these systems, power consumption has become a critical concern. In this letter we aim to minimize power consumption by optimizing transmit beamforming while ensuring quality of service (QoS), meeting the Cramér–Rao bound (CRB) for radar target sensing accuracy, subject to energy harvesting constraints. To solve the non-convex problem, semidefinite relaxation (SDR) is proposed. Numerical results show that our proposed algorithm can reduce power consumption and satisfy the QoS and CRB constraints.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 12","pages":"2779-2783"},"PeriodicalIF":3.7,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810494","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 Novel EICNet-Based Iterative Receiver for PLDPC-Coded M -ary DCSK Systems
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-10-14 DOI: 10.1109/LCOMM.2024.3480527
Yuyi He;Liang Lv;Yi Fang;Liuguo Yin;Pingping Chen
{"title":"A Novel EICNet-Based Iterative Receiver for PLDPC-Coded M -ary DCSK Systems","authors":"Yuyi He;Liang Lv;Yi Fang;Liuguo Yin;Pingping Chen","doi":"10.1109/LCOMM.2024.3480527","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3480527","url":null,"abstract":"In this letter, we propose a novel neural network-aided receiver, called extrinsic-information chaos network-aided iterative decoding (EICNet-ID) receiver, for protograph low-density parity-check (PLDPC)-coded \u0000<inline-formula> <tex-math>$boldsymbol {M}$ </tex-math></inline-formula>\u0000-ary differential chaos shift keying (DCSK) systems. Specifically, the EICNet structure captures the correlation features between the chaotic sequences of the received \u0000<inline-formula> <tex-math>$boldsymbol {M}$ </tex-math></inline-formula>\u0000-ary DCSK symbol to obtain more accurate a-priori log-likelihood ratio (LLR) without requiring the channel state information (CSI). Moreover, the EICNet structure considers both the received symbol and its a-posteriori probabilities, allowing the extrinsic information provided by the PLDPC decoder to update network input and enhance error performance. Both simulation and analysis results demonstrate that the proposed EICNet-ID receiver exhibits desirable performance compared to the existing counterparts.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 12","pages":"2700-2704"},"PeriodicalIF":3.7,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810470","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
Energy-Efficient Wireless Communication With Irregular Reconfigurable Intelligent Surfaces
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-10-10 DOI: 10.1109/LCOMM.2024.3477948
Huashu Chen;Chunlong He;Gongbin Qian;Xingquan Li
{"title":"Energy-Efficient Wireless Communication With Irregular Reconfigurable Intelligent Surfaces","authors":"Huashu Chen;Chunlong He;Gongbin Qian;Xingquan Li","doi":"10.1109/LCOMM.2024.3477948","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3477948","url":null,"abstract":"Irregular reconfigurable intelligent surfaces (IRIS) represents an advanced technology compared with traditional RIS, which can effectively enhance the energy efficiency (EE) performance of the system. This letter explores the problem of maximizing EE in a multiple-input single-output (MISO) network assisted by IRIS. To address the coupled optimization variables in this problem, we employ the block coordinate descent algorithm for efficient decoupling of the objective problem. Furthermore, quadratic transform theory, successive refinement method and an adaptive topology design method based on the tabu search algorithm are used to solve the decoupled subproblems. Simulation results confirm the substantial benefits of IRIS on the system’s EE performance.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 12","pages":"2754-2758"},"PeriodicalIF":3.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810489","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
Experimental Demonstration of Mahalanobis Distance Correlation Acquisition for OWC Spread Spectrum Communication Systems
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-10-10 DOI: 10.1109/LCOMM.2024.3477560
Kaiwen Zheng;Jiale Wang;Benben Li;Jie Lian;Dianbin Lian;Yan Gao;Guolei Zhu
{"title":"Experimental Demonstration of Mahalanobis Distance Correlation Acquisition for OWC Spread Spectrum Communication Systems","authors":"Kaiwen Zheng;Jiale Wang;Benben Li;Jie Lian;Dianbin Lian;Yan Gao;Guolei Zhu","doi":"10.1109/LCOMM.2024.3477560","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3477560","url":null,"abstract":"Optical wireless communication spread spectrum systems are known for their robustness and ability to resist interference. However, they can be impacted by non-Gaussian noise, leading to challenges such as clock synchronization failures and increased false alarm rates. To tackle this issue, this study transitions from examining signal correlation values to focusing on their distribution characteristics. The approach involves utilizing an adaptive Gaussian mixture model to establish the distribution of background noise correlation values and employing the weighted Mahalanobis distance for effectively differentiating the spread spectrum signal. Through experiments conducted at a signal-to-noise ratio (SNR) of -15 dB, the proposed algorithm demonstrates a significant enhancement in signal detection accuracy, surpassing 58%.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 12","pages":"2804-2808"},"PeriodicalIF":3.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810498","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
Ambient Backscatter Communications With Multi-Tag Selection: Outage Performance Analysis
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-10-10 DOI: 10.1109/LCOMM.2024.3477726
Suneel Yadav;Radhika Gour;Devendra S. Gurjar;Manav Bhatnagar
{"title":"Ambient Backscatter Communications With Multi-Tag Selection: Outage Performance Analysis","authors":"Suneel Yadav;Radhika Gour;Devendra S. Gurjar;Manav Bhatnagar","doi":"10.1109/LCOMM.2024.3477726","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3477726","url":null,"abstract":"This letter investigates the outage performance of a multi-tag ambient backscatter communication system over Nakagami-m fading channels. Considering the presence or absence of successive interference cancellation (SIC) techniques at the reader, namely, SIC-enabled or SIC-disabled, respectively, we first formulate the multi-tag selection schemes where the best tag is selected to communicate with the reader. We then present the distributions of the magnitude of the end-to-end channel coefficients for SIC-enabled/SIC-disabled based tag selection schemes over Nakagami-m fading. With these findings, we evaluate the novel outage probability expressions for both schemes. We also reveal some key insights related to the system’s diversity gain. Numerical and simulation results verify the accuracy of our analytical findings, and demonstrate the impact of various system and channel parameters on the outage performance.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 12","pages":"2884-2888"},"PeriodicalIF":3.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810317","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
IEEE Communications Society Information IEEE 通信学会信息
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-10-10 DOI: 10.1109/LCOMM.2024.3464153
{"title":"IEEE Communications Society Information","authors":"","doi":"10.1109/LCOMM.2024.3464153","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3464153","url":null,"abstract":"","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 10","pages":"C3-C3"},"PeriodicalIF":3.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10713467","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
IEEE Communications Letters Publication Information IEEE Communications Letters 出版信息
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-10-10 DOI: 10.1109/LCOMM.2024.3464149
{"title":"IEEE Communications Letters Publication Information","authors":"","doi":"10.1109/LCOMM.2024.3464149","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3464149","url":null,"abstract":"","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 10","pages":"C2-C2"},"PeriodicalIF":3.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10713451","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142408919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
引用次数: 0
Optimal Elevation and Azimuth Rotation for RIS-Assisted Wireless Transmission
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-10-10 DOI: 10.1109/LCOMM.2024.3477957
Shuqing Xu;Haiyan Guo;Wen Dong;Bin Lyu
{"title":"Optimal Elevation and Azimuth Rotation for RIS-Assisted Wireless Transmission","authors":"Shuqing Xu;Haiyan Guo;Wen Dong;Bin Lyu","doi":"10.1109/LCOMM.2024.3477957","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3477957","url":null,"abstract":"In this letter, we propose to optimize the rotation of reconfigurable intelligent surface (RIS) in both elevation and azimuth dimensions for further improving the RIS-assisted wireless transmission performance. Considering a mobile multi-user scenario, we first derive the upper bound of the ergodic sum-rate and the normalized radiation intensity of RIS after rotation in both elevation and azimuth dimensions. On this basis, we formulate the optimization problem with respect to the two rotation angles for the sake of maximizing the cascaded path gain, and derive the optimal solutions in closed form. Furthermore, we extend the optimal two-dimensional rotation (2DR) scheme to the scenario where multi-hop RISs assist wireless communication. Our simulation results verify the correctness of our derivation and show that our proposed 2DR scheme leads to a significantly higher ergodic sum-rate as compared to the single-elevation rotation (SER) scheme and no rotation (NR) scheme.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 12","pages":"2909-2913"},"PeriodicalIF":3.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810378","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 Energy and SINR Coverage Probability in UAV Corridor-Assisted RF-Powered IoT Networks
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-10-09 DOI: 10.1109/LCOMM.2024.3476936
Harris K. Armeniakos;Petros S. Bithas;Konstantinos Maliatsos;Athanasios G. Kanatas
{"title":"Joint Energy and SINR Coverage Probability in UAV Corridor-Assisted RF-Powered IoT Networks","authors":"Harris K. Armeniakos;Petros S. Bithas;Konstantinos Maliatsos;Athanasios G. Kanatas","doi":"10.1109/LCOMM.2024.3476936","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3476936","url":null,"abstract":"This letter studies the joint energy and signal-to-interference-plus-noise (SINR)-based coverage probability in Unmanned Aerial Vehicle (UAV)-assisted radio frequency (RF)-powered Internet of Things (IoT) networks. The UAVs are spatially distributed in an aerial corridor that is modeled as a one-dimensional (1D) binomial point process (BPP). By accurately capturing the line-of-sight (LoS) probability of a UAV through large-scale fading: i) an exact form expression for the energy coverage probability is derived and ii) a tight approximation for the overall coverage performance is obtained. Among several key findings, numerical results reveal the optimal number of deployed UAV-BSs that maximizes the joint coverage probability, as well as the optimal length of the UAV corridors when designing such UAV-assisted IoT networks.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 12","pages":"2904-2908"},"PeriodicalIF":3.7,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810377","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
Reduced Guard Interval Orthogonal Frequency Division Multiplexing: A Soft Trade-Off Solution Toward Spectral Efficiency
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-10-09 DOI: 10.1109/LCOMM.2024.3476486
Zhaoqi Wang;Ran Xu;Shihao Wu;Xiqing Liu;Mugen Peng
{"title":"Reduced Guard Interval Orthogonal Frequency Division Multiplexing: A Soft Trade-Off Solution Toward Spectral Efficiency","authors":"Zhaoqi Wang;Ran Xu;Shihao Wu;Xiqing Liu;Mugen Peng","doi":"10.1109/LCOMM.2024.3476486","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3476486","url":null,"abstract":"The guard interval, termed as cyclic prefix (CP) or zero-padding (ZP), is utilized to mitigate multipath interference in orthogonal frequency division multiplexing (OFDM) systems but at the expense of spectral efficiency. Symbol cyclic shift equalization (SCSE) is our previous proposal to address multipath propagation in CP-free OFDM systems. However, SCSE-OFDM exhibits poor bit error rate (BER) performance when the power of the shortest resolvable path is relatively low. In light of this, we carry out a reduced guard interval (RGI) OFDM scheme that achieves a soft trade-off between SCSE-OFDM and ZP-OFDM, where RGI length can be optimized using genetic algorithm. Simulation results demonstrate superior BER performance of RGI-OFDM over SCSE-OFDM and higher spectral efficiency compared to both SCSE-OFDM and ZP-OFDM. RGI-OFDM also exhibits evident advantages in harsh environments with large delay spread.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 12","pages":"2920-2924"},"PeriodicalIF":3.7,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810423","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
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