IEEE Wireless Communications Letters最新文献_第8页

Multi-Satellite Cooperative Load-Balancing Scheme Based on Dynamic Beam Coverage for LEO Beam Hopping Systems 基于低地轨道波束跳转系统动态波束覆盖的多卫星合作负载平衡方案

IF 4.6 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2024-08-30 DOI: 10.1109/LWC.2024.3452115

Xiaoyan Zhao;Cheng Wang;Songsong Cai;Ruoqi Chen;Jiarui Wen;Lexi Xu;Weidong Wang

引用次数: 0

Channel Estimation for Movable-Antenna MIMO Systems via Tensor Decomposition 通过张量分解实现可移动天线多输入多输出系统的信道估计

IF 4.6 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2024-08-29 DOI: 10.1109/LWC.2024.3450592

Ruoyu Zhang;Lei Cheng;Wei Zhang;Xinrong Guan;Yueming Cai;Wen Wu;Rui Zhang

{"title":"Channel Estimation for Movable-Antenna MIMO Systems via Tensor Decomposition","authors":"Ruoyu Zhang;Lei Cheng;Wei Zhang;Xinrong Guan;Yueming Cai;Wen Wu;Rui Zhang","doi":"10.1109/LWC.2024.3450592","DOIUrl":"10.1109/LWC.2024.3450592","url":null,"abstract":"In this letter, we investigate the channel estimation problem for MIMO wireless communication systems with movable antennas (MAs) at both the transmitter (Tx) and receiver (Rx). To achieve high channel estimation accuracy with low pilot training overhead, we propose a tensor decomposition-based method for estimating the parameters of multi-path channel components, thereby reconstructing the wireless channel between any pair of Tx and Rx MA positions in the Tx and Rx regions. First, we introduce a two-stage Tx-Rx successive antenna movement pattern for pilot training. Then, we obtain the factor matrices of the tensor via the canonical polyadic decomposition, and thereby estimate the angle/gain parameters for enabling the channel reconstruction between arbitrary Tx/Rx MA positions. In addition, we analyze the uniqueness condition of the tensor decomposition, which ensures the complete channel reconstruction between the whole Tx and Rx regions based on the channel measurements at only a finite number of Tx/Rx MA positions. Finally, simulation results are presented to evaluate the proposed tensor decomposition-based method as compared to existing methods, in terms of channel estimation accuracy and pilot overhead.","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"13 11","pages":"3089-3093"},"PeriodicalIF":4.6,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142101314","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

Sensing-Resistant Jamming: A Novel Physical Layer Attack in ISAC Networks 抗传感干扰：ISAC 网络中的一种新型物理层攻击

IF 4.6 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2024-08-29 DOI: 10.1109/LWC.2024.3451534

Teng Ma;Xia Lei;Hong Niu;Chau Yuen

引用次数: 0

Capacity Maximization for Base Station With Hybrid Fixed and Movable Antennas 固定天线与移动天线混合基站的容量最大化

IF 4.6 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2024-08-29 DOI: 10.1109/LWC.2024.3451481

Xiaoming Shi;Xiaodan Shao;Rui Zhang

{"title":"Capacity Maximization for Base Station With Hybrid Fixed and Movable Antennas","authors":"Xiaoming Shi;Xiaodan Shao;Rui Zhang","doi":"10.1109/LWC.2024.3451481","DOIUrl":"10.1109/LWC.2024.3451481","url":null,"abstract":"Six-dimensional movable antenna (6DMA) is an effective solution for enhancing wireless network capacity through the adjustment of both 3D positions and 3D rotations of distributed antenna surfaces. Although freely positioning/rotating 6DMA surfaces offer the greatest flexibility and thus highest capacity improvement, its implementation may be challenging in practice due to the drastic architecture change required for existing base stations (BSs), which predominantly adopt fixed-position antenna (FPA) arrays (e.g., sector antenna arrays). Thus, we introduce in this letter a new BS architecture called hybrid fixed and movable antennas (HFMA), which consists of both conventional FPA arrays and position/rotation-adjustable 6DMA surfaces. For ease of implementation, we consider that all 6DMA surfaces can rotate along a circular track above the FPA arrays. We aim to maximize the network capacity via optimizing the rotation angles of all 6DMA surfaces based on the users’ spatial distribution. Since this problem is combinatorial and its optimal solution requires prohibitively high computational complexity via exhaustive search, we propose an alternative adaptive Markov Chain Monte Carlo based method to solve it more efficiently. Finally, we present simulation results that show significant performance gains achieved by our proposed design over various benchmark schemes.","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"13 10","pages":"2877-2881"},"PeriodicalIF":4.6,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142101338","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

Cross-Region Fusion and Fast Adaptation for Multi-Scenario Fingerprint-Based Localization in Cell-Free Massive MIMO Systems 无小区大规模多输入多输出系统中基于指纹的多场景定位的跨区域融合和快速适应性

IF 4.6 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2024-08-29 DOI: 10.1109/LWC.2024.3451699

Hanwen Xu;Rui Liu;Yaqin Xie;Jiamin Li;Pengcheng Zhu;Dognming Wang

{"title":"Cross-Region Fusion and Fast Adaptation for Multi-Scenario Fingerprint-Based Localization in Cell-Free Massive MIMO Systems","authors":"Hanwen Xu;Rui Liu;Yaqin Xie;Jiamin Li;Pengcheng Zhu;Dognming Wang","doi":"10.1109/LWC.2024.3451699","DOIUrl":"10.1109/LWC.2024.3451699","url":null,"abstract":"Existing fingerprint-based localization methods perform well in a specific region. However, transferring the model to a new region or adapting to differences in regional environments poses challenges. Additionally, the substantial training cost of the model, including long training time and the inability to reuse data across different regions, further complicates the implementation process. To address these issues, we propose cross region fusion and fast adaptation (CRFA) framework, a novel approach for fingerprint localization in cell-free massive multiple-input multiple-output systems. We begin by extracting angle domain channel power as fingerprint. Further more, we employ access point selection, cross-region fusion and network localization network to enhance localization accuracy and address cross-regional fingerprint disparities. Through the training process of model-agnostic meta-learning, CRFA acquires meta-parameters that facilitate its deployment to any region through a fine-tuning process. Leveraging cross region fusion and meta-learning, the proposed model achieves higher localization accuracy, fast deployment, and adaptability to various environments. Experimental validation using Wireless Insite software shows that the proposed CRFA method performs better in complex environments compared to traditional methods when rapidly deploying models to indoor, urban and suburban region.","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"13 10","pages":"2882-2886"},"PeriodicalIF":4.6,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142101316","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

Transmit Beamforming Design for Multi-UE Multi-Target ISAC Systems 多 UE 多目标 ISAC 系统的发射波束成形设计

IF 4.6 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2024-08-28 DOI: 10.1109/LWC.2024.3451022

Qiu Ouyang;Jiupeng Zhang;Shi Yan;Mugen Peng

引用次数: 0

Semantic Communication for Cooperative Multi-Task Processing Over Wireless Networks 无线网络多任务协同处理的语义通信

IF 4.6 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2024-08-28 DOI: 10.1109/LWC.2024.3451139

Ahmad Halimi Razlighi;Carsten Bockelmann;Armin Dekorsy

{"title":"Semantic Communication for Cooperative Multi-Task Processing Over Wireless Networks","authors":"Ahmad Halimi Razlighi;Carsten Bockelmann;Armin Dekorsy","doi":"10.1109/LWC.2024.3451139","DOIUrl":"10.1109/LWC.2024.3451139","url":null,"abstract":"In this letter, we investigated semantic communication for multi-task processing using an information-theoretic approach. We introduced the concept of a “semantic source”, allowing multiple semantic interpretations from a single observation. We formulated an end-to-end optimization problem taking into account the communication channel, maximizing mutual information (infomax) to design the semantic encoding and decoding process exploiting the statistical relations between semantic variables. To solve the problem we perform data-driven deep learning employing variational approximation techniques. Our semantic encoder is divided into a common unit and multiple specific units to facilitate cooperative multi-task processing. Simulation results demonstrate the effectiveness of our proposed semantic source and system design when statistical relationships exist, comparing cooperative task processing with independent task processing. However, our findings highlight that cooperative multi-tasking is not always beneficial, emphasizing the importance of statistical relationships between tasks and indicating the need for further investigation into the semantically processing of multiple tasks.","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"13 10","pages":"2867-2871"},"PeriodicalIF":4.6,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10654356","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142090205","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

Turning Adversity Into Advantage: Robust MCS Selection Utilizing the Uncertainty of Channel Prediction Neural Networks 化逆境为优势：利用信道预测神经网络的不确定性进行稳健的 MCS 选择

IF 4.6 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2024-08-28 DOI: 10.1109/LWC.2024.3393939

Yangyang Li;Yuhua Xu;Guoxin Li;Ximing Wang;Yifan Xu;Songyi Liu;Lei Yue

引用次数: 0

Bistatic Doppler Frequency Estimation With Asynchronous Moving Devices for Integrated Sensing and Communications 利用异步移动设备进行双稳态多普勒频率估计，实现综合传感与通信

IF 4.6 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2024-08-28 DOI: 10.1109/LWC.2024.3451298

Gianmaria Ventura;Zaman Bhalli;Michele Rossi;Jacopo Pegoraro

引用次数: 0

URLLC CF Massive MIMO Systems With Dual Polarized Antennas and Hardware Impairments 具有双极化天线和硬件缺陷的 URLLC CF Massive MIMO 系统

IF 4.6 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2024-08-27 DOI: 10.1109/LWC.2024.3450497

Sourasis Chatterjee;Sauradeep Dey;Rohit Budhiraja

引用次数: 0