COMBINED VERSION OF SIGNAL POSITION--BASED ADAP TIVE QRD-M ALGORITHM WITH OTHER QRD-M ALGORITHMS FOR MIMO SYSTEM

摘要

For MIMO systems, The QRD-M algorithm is a suboptimalrndetection algorithm that achieves near-MLDrnperformance with low complexity. In a previous work, wernproposed a novel algorithm, termed signal position-basedrnadaptive QRD-M, to solve a problem that somernalgorithms chose even paths that have unnecessarily lowrnreliability as surviving paths. The algorithm can readilyrnbe combined with other QRD-M algorithms and getrnhigher complexity reduction efficiency. In this paper, wernpresent a combined version of the signal position-basedrnadaptive QRD-M with the channel condition-basedrnadaptive QRD-M to examine the combinability. Computerrnsimulations demonstrate that the combined versionrnachieves near-MLD performance with reducedrncomplexity.