Combined Version of Signal Position-based Adaptive QRD-M Algorithm with Other QRD-M Algorithms for MIMO System

Hyunwoo Yoo, Myung-Yong Yoon, Beom-Soo Shin, Sangyeol Oh, and Jaehoon Lee

Keywords

MIMO System, QRD-M Algorithm, Detection

Abstract

For MIMO systems, The QRD-M algorithm is a sub-optimal detection algorithm that achieves near-MLD performance with low complexity. In a previous work, we proposed a novel algorithm, termed signal position-based adaptive QRD-M, to solve a problem that some algorithms chose even paths that have unnecessarily low reliability as surviving paths. The algorithm can readily be combined with other QRD-M algorithms and get higher complexity reduction efficiency. In this paper, we present a combined version of the signal position-based adaptive QRD-M with the channel condition-based adaptive QRD-M to examine the combinability. Computer simulations demonstrate that the combined version achieves near-MLD performance with reduced complexity.

Important Links:

• DOI: 10.2316/P.2012.773-029
• From Proceeding (771) Imaging and Signal Processing in Health Care and Technology / 772: Human-Computer Interaction / 773: Communication, Internet and Information Technology - 2012

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