Performance analysis for uplink massive MIMO systems with a large and random number of UEs

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• 作者：Ang Yang ; Chengwen Xing ; Zesong Fei ; Jingming Kuang
• 关键词：massive MIMO ; large numbers of UEs ; maximum ratio combining detector ; zero ; forcing detector ; ergodic achievable rates ; 022312 ; 大规模天线
大数目用户 最大比合并接收机 迫零接收机 遍历可达速率
• 刊名：SCIENCE CHINA Information Sciences
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：59
• 期：2
• 页码：1-9
• 全文大小：305 KB
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• 作者单位：Ang Yang (1)
  Chengwen Xing (1)
  Zesong Fei (1)
  Jingming Kuang (1)
  
  1. School of Information and Electronics, Beijing Institute of Technology, Beijing, 100081, China
  
• 刊物类别：Computer Science
• 刊物主题：Chinese Library of Science
  Information Systems and Communication Service
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1919

文摘

In this paper, we analyze the ergodic achievable rate of an uplink massive multi-user multipleinput multiple-output (MIMO) system with a large and Poisson distributed number of users. In the considered scenario, multiple user equipments (UEs) transmit their information to a base station equipped with a very large number of antennas. New asymptotic expressions for the ergodic achievable rate for large and deterministic number of users are derived for both maximum ratio combining (MRC) detector and zero-forcing (ZF) detector, as well as the ergodic achievable rate for large and random number of users. Simulation results assess the accuracy of these analytical expressions. It is shown that compared with the MRC detector, ZF detector can achieve much higher spectrum efficiency. Also, the results provide a meaningful fact that with different settings the randomness of the number of users will result in different extents of impact on the performance of massive MIMO. Keywords massive MIMO large numbers of UEs maximum ratio combining detector zero-forcing detector ergodic achievable rates