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IF 23.2 1区计算机科学

Proceedings of the IEEE Pub Date : 2024-08-28 DOI: 10.1109/JPROC.2024.3444548

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A Primer on Near-Field Communications for Next-Generation Multiple Access

IF 23.2 1区计算机科学

Proceedings of the IEEE Pub Date : 2024-08-20 DOI: 10.1109/JPROC.2024.3436513

Chongjun Ouyang;Zhaolin Wang;Yan Chen;Xidong Mu;Peiying Zhu

{"title":"A Primer on Near-Field Communications for Next-Generation Multiple Access","authors":"Chongjun Ouyang;Zhaolin Wang;Yan Chen;Xidong Mu;Peiying Zhu","doi":"10.1109/JPROC.2024.3436513","DOIUrl":"https://doi.org/10.1109/JPROC.2024.3436513","url":null,"abstract":"Multiple-antenna technologies are advancing toward the development of extremely large aperture arrays and the utilization of extremely high frequencies, driving the progress of next-generation multiple access (NGMA). This evolution is accompanied by the emergence of near-field communications (NFCs), characterized by spherical-wave propagation, which introduces additional range dimensions to the channel and enhances system throughput. In this context, a tutorial-based primer on NFC is presented, emphasizing its applications in multiuser communications and multiple access (MA). The following areas are investigated: 1) the commonly used near-field channel models are reviewed along with their simplifications under various near-field conditions; 2) building upon these models, the information-theoretic capacity limits of NFC-MA are analyzed, including the derivation of the sum-rate capacity and capacity region, and their upper limits for both downlink and uplink scenarios; and 3) a detailed investigation of near-field multiuser beamforming design is presented, offering low-complexity and effective NFC-MA design methodologies in both the spatial and wavenumber (angular) domains. Throughout these investigations, near-field MA is compared with its far-field counterpart to highlight its superiority and flexibility in terms of interference management, thereby laying the groundwork for achieving NGMA.","PeriodicalId":20556,"journal":{"name":"Proceedings of the IEEE","volume":"112 9","pages":"1527-1565"},"PeriodicalIF":23.2,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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In-Band Full Duplex 带内全双工

IF 23.2 1区计算机科学

Proceedings of the IEEE Pub Date : 2024-08-20 DOI: 10.1109/JPROC.2024.3434189

Ashutosh Sabharwal;Besma Smida

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Proceedings of the IEEE: Stay Informed. Become Inspired 电气和电子工程师学会论文集》：保持信息灵通。激发灵感

IF 23.2 1区计算机科学

Proceedings of the IEEE Pub Date : 2024-08-20 DOI: 10.1109/JPROC.2024.3434202

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Future Special Issues/Special Sections of the Proceedings 论文集》未来的特刊/专栏

IF 23.2 1区计算机科学

Proceedings of the IEEE Pub Date : 2024-08-20 DOI: 10.1109/JPROC.2024.3434198

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IEEE Connects You to a Universe of Information IEEE 将您与信息世界连接起来

IF 23.2 1区计算机科学

Proceedings of the IEEE Pub Date : 2024-08-20 DOI: 10.1109/JPROC.2024.3439969

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IEEE Membership IEEE 会员

IF 23.2 1区计算机科学

Proceedings of the IEEE Pub Date : 2024-08-20 DOI: 10.1109/JPROC.2024.3434200

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AI Empowered Wireless Communications: From Bits to Semantics 人工智能赋能无线通信：从比特到语义

IF 23.2 1区计算机科学

Proceedings of the IEEE Pub Date : 2024-08-20 DOI: 10.1109/JPROC.2024.3437730

Zhijin Qin;Le Liang;Zijing Wang;Shi Jin;Xiaoming Tao;Wen Tong;Geoffrey Ye Li

{"title":"AI Empowered Wireless Communications: From Bits to Semantics","authors":"Zhijin Qin;Le Liang;Zijing Wang;Shi Jin;Xiaoming Tao;Wen Tong;Geoffrey Ye Li","doi":"10.1109/JPROC.2024.3437730","DOIUrl":"10.1109/JPROC.2024.3437730","url":null,"abstract":"Artificial intelligence (AI) and machine learning (ML) have shown tremendous potential in reshaping the landscape of wireless communications and are, therefore, widely expected to be an indispensable part of the next-generation wireless network. This article presents an overview of how AI/ML and wireless communications interact synergistically to improve system performance and provides useful tips and tricks on realizing such performance gains when training AI/ML models. In particular, we discuss in detail the use of AI/ML to revolutionize key physical layer and lower medium access control (MAC) layer functionalities in traditional wireless communication systems. In addition, we provide a comprehensive overview of the AI/ML-enabled semantic communication systems, including key techniques from data generation to transmission. We also investigate the role of AI/ML as an optimization tool to facilitate the design of efficient resource allocation algorithms in wireless communication networks at both bit and semantic levels. Finally, we analyze major challenges and roadblocks in applying AI/ML in practical wireless system design and share our thoughts and insights on potential solutions.","PeriodicalId":20556,"journal":{"name":"Proceedings of the IEEE","volume":"112 7","pages":"621-652"},"PeriodicalIF":23.2,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10639525","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142022128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Proceedings of the IEEE Publication Information 电气和电子工程师学会论文集》出版信息

IF 23.2 1区计算机科学

Proceedings of the IEEE Pub Date : 2024-08-20 DOI: 10.1109/JPROC.2024.3434194

引用次数: 0

Saltation Matrices: The Essential Tool for Linearizing Hybrid Dynamical Systems 盐化矩阵：线性化混合动力系统的基本工具

IF 23.2 1区计算机科学

Proceedings of the IEEE Pub Date : 2024-08-19 DOI: 10.1109/JPROC.2024.3440211

Nathan J. Kong;J. Joe Payne;James Zhu;Aaron M. Johnson

{"title":"Saltation Matrices: The Essential Tool for Linearizing Hybrid Dynamical Systems","authors":"Nathan J. Kong;J. Joe Payne;James Zhu;Aaron M. Johnson","doi":"10.1109/JPROC.2024.3440211","DOIUrl":"10.1109/JPROC.2024.3440211","url":null,"abstract":"Hybrid dynamical systems, i.e., systems that have both continuous and discrete states, are ubiquitous in engineering but are difficult to work with due to their discontinuous transitions. For example, a robot leg is able to exert very little control effort, while it is in the air compared to when it is on the ground. When the leg hits the ground, the penetrating velocity instantaneously collapses to zero. These instantaneous changes in dynamics and discontinuities (or jumps) in state make standard smooth tools for planning, estimation, control, and learning difficult for hybrid systems. One of the key tools for accounting for these jumps is called the saltation matrix. The saltation matrix is the sensitivity update when a hybrid jump occurs and has been used in a variety of fields, including robotics, power circuits, and computational neuroscience. This article presents an intuitive derivation of the saltation matrix and discusses what it captures, where it has been used in the past, how it is used for linear and quadratic forms, how it is computed for rigid body systems with unilateral constraints, and some of the structural properties of the saltation matrix in these cases.","PeriodicalId":20556,"journal":{"name":"Proceedings of the IEEE","volume":"112 6","pages":"585-608"},"PeriodicalIF":23.2,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142007272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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