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TIIS (한국인터넷정보학회)

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한글제목(Korean Title) Equal Gain Block Decomposition Methods or Multiuser MIMO Networks
영문제목(English Title) Equal Gain Block Decomposition Methods or Multiuser MIMO Networks
저자(Author) Insoo Hwang   Inseok Kang   Intae Hwang   Cheolwoo You  
원문수록처(Citation) VOL 15 NO. 03 PP. 1156 ~ 1173 (2021. 03)
한글내용
(Korean Abstract)
영문내용
(English Abstract)
In this paper, we propose a new joint precoder and postcoder design strategy to support ultiple streams per user in multiuser multiple-input multiple-output (MIMO) systems. We ropose two step precoding strategies using equal channel gain decomposition and block iagonalization at the transmitter. With the proposed precoder, the multiuser MIMO channel an be decomposed into multiple parallel channels with equal channel gain per user. After pplying receive postcoder which is generated and sent by the transmitter, we can use ML ased decoder per stream to achieve full receive diversity. Achievable sum rate bound and iversity performance of the proposed algorithm are presented with feedback signaling design nd quantitative complexity analysis. Simulation results show that the proposed algorithm symptotically approaches to the sum rate capacity of the MIMO broadcast channel while aintaining full diversity order.
키워드(Keyword) Precoder   Postcoder   MIMO   Multiuser   Full Diversity Order  
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