Low-complexity hybrid analog-digital signal detector for uplink multiuser massive MIMO systems

Yinman Lee, Meng Wei Liang, Sok Ian Sou

研究成果: Conference contribution

摘要

In this paper, we propose a low-complexity hybrid analog-digital signal detector for uplink multiuser massive multiple-input multiple-output (MIMO) systems. Specially, both the hardware cost and computation load can be reduced. The analog part consists of phase shifters only which are tuned by the idea of equal-gain combining (EGC) for each data stream. Thus, no additional optimization is required, and the number of radio-frequency (RF) chains decreases at the same time. In the digital part, the Gauss-Seidel (GS) iteration with decision is then used to extract the transmitted symbols from all uplink users. Simulation results show that our proposed hybrid processing method provides similar bit-error rate (BER) performance as compared with the fully-digital minimum mean-squared error (MMSE)/zero-forcing (ZF) detection, and is even better for some cases. When considering the complexity reduction, it is an attractive way for giving a good compromise between the error rate and complexity.

原文English
主出版物標題2019 IEEE 8th Global Conference on Consumer Electronics, GCCE 2019
發行者Institute of Electrical and Electronics Engineers Inc.
頁面415-416
頁數2
ISBN(電子)9781728135755
DOIs
出版狀態Published - 2019 十月
事件8th IEEE Global Conference on Consumer Electronics, GCCE 2019 - Osaka, Japan
持續時間: 2019 十月 152019 十月 18

出版系列

名字2019 IEEE 8th Global Conference on Consumer Electronics, GCCE 2019

Conference

Conference8th IEEE Global Conference on Consumer Electronics, GCCE 2019
國家/地區Japan
城市Osaka
期間19-10-1519-10-18

All Science Journal Classification (ASJC) codes

  • 儀器
  • 人工智慧
  • 電腦網路與通信
  • 電腦科學應用
  • 電氣與電子工程

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