{"title":"User Selection With Effective Channel Quality Feedback for PMI-Based MU-MIMO","authors":"Minchul Hong;Hyunwoo Lee;Daesik Hong;Kyungsik Min","doi":"10.1109/TVT.2024.3500580","DOIUrl":null,"url":null,"abstract":"This paper addresses user selection for precoding matrix indicator (PMI)-based multi-user multiple-input multiple-output (MU-MIMO) systems. Under a scenario where channel information can only be obtained through PMI, we formulate a problem to find a user set that maximizes the sum-rate of MU-MIMO with maximum ratio transmission precoding. We then analyze that the user set can be determined by solely considering the effective signal power, which is achieved by the convergence of the sum of interference as the numbers of users and antennas go to infinity. Based on the analysis, we propose a user selection algorithm that utilizes the effective signal power. To this end, we introduce feedback of the effective channel quality representing the effective signal power, which is then employed in choosing users. Simulation results demonstrate that our proposed user selection algorithm outperforms existing methods.","PeriodicalId":13421,"journal":{"name":"IEEE Transactions on Vehicular Technology","volume":"74 3","pages":"5247-5252"},"PeriodicalIF":7.1000,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Vehicular Technology","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10755985/","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
This paper addresses user selection for precoding matrix indicator (PMI)-based multi-user multiple-input multiple-output (MU-MIMO) systems. Under a scenario where channel information can only be obtained through PMI, we formulate a problem to find a user set that maximizes the sum-rate of MU-MIMO with maximum ratio transmission precoding. We then analyze that the user set can be determined by solely considering the effective signal power, which is achieved by the convergence of the sum of interference as the numbers of users and antennas go to infinity. Based on the analysis, we propose a user selection algorithm that utilizes the effective signal power. To this end, we introduce feedback of the effective channel quality representing the effective signal power, which is then employed in choosing users. Simulation results demonstrate that our proposed user selection algorithm outperforms existing methods.
期刊介绍：
The scope of the Transactions is threefold (which was approved by the IEEE Periodicals Committee in 1967) and is published on the journal website as follows: Communications: The use of mobile radio on land, sea, and air, including cellular radio, two-way radio, and one-way radio, with applications to dispatch and control vehicles, mobile radiotelephone, radio paging, and status monitoring and reporting. Related areas include spectrum usage, component radio equipment such as cavities and antennas, compute control for radio systems, digital modulation and transmission techniques, mobile radio circuit design, radio propagation for vehicular communications, effects of ignition noise and radio frequency interference, and consideration of the vehicle as part of the radio operating environment. Transportation Systems: The use of electronic technology for the control of ground transportation systems including, but not limited to, traffic aid systems; traffic control systems; automatic vehicle identification, location, and monitoring systems; automated transport systems, with single and multiple vehicle control; and moving walkways or people-movers. Vehicular Electronics: The use of electronic or electrical components and systems for control, propulsion, or auxiliary functions, including but not limited to, electronic controls for engineer, drive train, convenience, safety, and other vehicle systems; sensors, actuators, and microprocessors for onboard use; electronic fuel control systems; vehicle electrical components and systems collision avoidance systems; electromagnetic compatibility in the vehicle environment; and electric vehicles and controls.
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