A reduced-complexity tree search detection algorithm for MIMO systems

Authors:
Yongsang Kim;Kyungwhoon Cheun
Affiliations:
Division of Electrical and Computer Engineering, Pohang University of Science and Technology, Pohang, Korea;Division of Electrical and Computer Engineering, Pohang University of Science and Technology, Pohang, Korea
Venue:
IEEE Transactions on Signal Processing
Year:
2009

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Abstract

In this correspondence, we propose a simplified QR-decomposition- M algorithm for coded multiple-input multiple-output systems based on the idea of selective branch extension. The proposed algorithm results in significant complexity reductions without observable performance losses, especially for large modulation orders where complexity reduction is most important.