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Prior Maximum Likelihood Detection Verifier Design in MIMO Receivers  

Jeon, Hyoung-Goo (동의대학교 정보통신공학과)
Bae, Jin-Ho (제주대학교 해양시스템공학과)
Lee, Dong-Hoon (동명대학교 의용공학과)
Abstract
This paper proposes a prior maximum likelihood (ML) detection verifier which has an ability to verify if the zero forcing (ZF) detection results are identical to the ML detection results. Since more than 90% of ZF detection results are identical to ML detection results, the proposed verifier makes it possible to omit the computationally complex ML detection in 90% cases of MIMO signal detections. The proposed verifier is designed by using the diversity gain obtained from converting MIMO signal into single input multiple output (SIMO) signals. In the proposed method, single input multiple output (SIMO) signals for each transmit antenna are separated from MIMO signals after the MIMO signals are detected by ZF method. Computer simulations show that the true alarm probability of the proposed verifier is more than 80% and the false alarm probability is less than $10^{-4}$.
Keywords
MIMO; SIMO; Maximum Likelihood detection; Zero forcing detection; ML Detection verifier;
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