STBC Based Decoders for Two-User Interference MIMO Channels

Zhiqiang YI  Meilin HE  Peng PAN  Haiquan WANG  

IEICE TRANSACTIONS on Communications   Vol.E102-B   No.9   pp.1875-1884
Publication Date: 2019/09/01
Publicized: 2019/03/14
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2018EBP3362
Type of Manuscript: PAPER
Category: Transmission Systems and Transmission Equipment for Communications
interference channel,  fading channel,  ML decoder,  hierarchical constellation,  performance analysis,  

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This paper analyzes the performance of various decoders in a two-user interference channel, and some improved decoders based on enhanced utilization of channel state information at the receiver side are presented. Further, new decoders, namely hierarchical constellation based decoders, are proposed. Simulations show that the improved decoders and the proposed decoders have much better performance than existing decoders. Moreover, the proposed decoders have lower decoding complexity than the traditional maximum likelihood decoder.