IEEE Wireless Communications Letters最新文献_第7页

Deep Reinforcement Learning-Based Intelligent Reflecting Surface Optimization for TDD Multi-User MIMO Systems 基于深度强化学习的TDD多用户MIMO系统智能反射面优化

IF 6.3 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2023-08-03 DOI: 10.1109/LWC.2023.3301496

Fengyu Zhao;Wen Chen;Ziwei Liu;Jun Li;Qingqing Wu

引用次数: 0

Power Minimization for Double Cooperative-RIS-Assisted Uplink NOMA System 双协同ris辅助上行NOMA系统的功率最小化

IF 6.3 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2023-08-02 DOI: 10.1109/LWC.2023.3301172

Haochun Ma;Hong Wang;Haitao Zhao;Shen Fu

引用次数: 0

Next-Generation RIS: From Single to Multiple Functions 下一代 RIS：从单一功能到多种功能

IF 6.3 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2023-08-01 DOI: 10.1109/LWC.2023.3300461

Ailing Zheng;Wanli Ni;Wen Wang;Hui Tian

引用次数: 0

Matrix Reconstruction Algorithm-Assisted Multi-Carrier DCSK Scheme: An Effective Solution for Frequency-Selective Fading Channel 矩阵重构算法辅助的多载波DCSK方案:一种有效的频率选择性衰落信道解决方案

IF 6.3 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2023-08-01 DOI: 10.1109/LWC.2023.3300353

Yiwei Tao;Yi Fang;Pingping Chen;Huan Ma;Mohsen Guizani

引用次数: 0

Joint Channel Estimation and Equalization in Massive MIMO Using a Single Pilot Subcarrier 使用单导频子载波的大规模MIMO中的联合信道估计和均衡

IF 6.3 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2023-07-27 DOI: 10.1109/LWC.2023.3299414

Danilo Lelin Li;Arman Farhang

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引用次数: 0

Deep Learning-Based Cluster Delay Estimation Using Prior Sparsity 基于先验稀疏性的深度学习聚类延迟估计

IF 6.3 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2023-07-27 DOI: 10.1109/LWC.2023.3299451

Yong Zhu;Jie Ma;Yiming Yu;Songtao Gao;Haiming Wang

引用次数: 0

SARIS: Scattering Aware Reconfigurable Intelligent Surface Model and Optimization for Complex Propagation Channels 具有散射感知的可重构智能表面模型及其在复杂传播信道中的优化

IF 6.3 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2023-07-27 DOI: 10.1109/LWC.2023.3299304

Placido Mursia;Sendy Phang;Vincenzo Sciancalepore;Gabriele Gradoni;Marco Di Renzo

{"title":"SARIS: Scattering Aware Reconfigurable Intelligent Surface Model and Optimization for Complex Propagation Channels","authors":"Placido Mursia;Sendy Phang;Vincenzo Sciancalepore;Gabriele Gradoni;Marco Di Renzo","doi":"10.1109/LWC.2023.3299304","DOIUrl":"10.1109/LWC.2023.3299304","url":null,"abstract":"The reconfigurable intelligent surface (RIS) is an emerging technology that changes how wireless networks are perceived, therefore its potential benefits and applications are currently under intense research and investigation. In this letter, we focus on electromagnetically consistent models for RISs inheriting from a recently proposed model based on mutually coupled loaded wire dipoles. While existing related research focuses on free-space wireless channels thereby ignoring interactions between RIS and scattering objects present in the propagation environment, we introduce an RIS-aided channel model that is applicable to more realistic scenarios, where the scattering objects are modeled as loaded wire dipoles. By adjusting the parameters of the wire dipoles, the properties of general natural and engineered material objects can be modeled. Based on this model, we introduce a provably convergent and efficient iterative algorithm that jointly optimizes the RIS and transmitter configurations to maximize the system sum-rate. Extensive numerical results show the net performance improvement provided by the proposed method compared with existing optimization algorithms.","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"12 11","pages":"1921-1925"},"PeriodicalIF":6.3,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49338406","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: 8

Hierarchical Codebook Design for Near-Field mmWave MIMO Communications Systems 近场毫米波MIMO通信系统的分层码本设计

IF 6.3 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2023-07-27 DOI: 10.1109/LWC.2023.3299354

Jiawei Chen;Feifei Gao;Mengnan Jian;Wanmai Yuan

引用次数: 9

Multiple Access for Downlink Multi-User VLC System: NOMA or OMA User Pairing? 下行链路多用户VLC系统的多址接入：NOMA还是OMA用户配对？

IF 6.3 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2023-07-26 DOI: 10.1109/LWC.2023.3299115

Zehao Liu;Fang Yang;Jian Song;Zhu Han

引用次数: 0

SEFDM Based Index Modulation on OFDM-IM 基于SEFDM的OFDM-IM索引调制

IF 6.3 3区计算机科学

IEEE Wireless Communications Letters Pub Date : 2023-07-26 DOI: 10.1109/LWC.2023.3298918

Muhammad Sajid Sarwar;Soo Young Shin

引用次数: 0