Likelihood Detection Utilizing Ordering and Decision of Partial Bits in MIMO Systems

Yutaka MURAKAMI  Kiyotaka KOBAYASHI  Takashi FUKAGAWA  Masayuki ORIHASHI  

IEICE TRANSACTIONS on Communications   Vol.E89-B   No.4   pp.1354-1363
Publication Date: 2006/04/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.4.1354
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
MIMO,  ZF,  MMSE,  MLD,  ordering,  decision of partial bits,  

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We propose a likelihood detection scheme that utilizes ordering and decision of partial bits in MIMO spatial multiplexing systems. We compute BER performance of the proposed detection scheme under Rayleigh fading channels in a 33 MIMO spatial multiplexing system and compare it with BER performance using MLD only and detection utilizing ZF or MMSE only. In addition, the computational complexity of the proposed detection scheme is compared with that of MLD and detection utilizing ZF or MMSE. The results of our investigation show that the proposed detection is a scheme achieves both good BER performance and low computational complexity.