Near-MLD MIMO detection based on a modified ant colony optimization

Authors:
Jenn-Kaie Lain;Jyun-Yu Chen
Affiliations:
Department of Electronic Engineering, National Yunlin University of Science and Technology, Yunlin, Taiwan;Department of Electronic Engineering, National Yunlin University of Science and Technology, Yunlin, Taiwan
Venue:
IEEE Communications Letters
Year:
2010

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Abstract

In wireless multiple-input multiple-output (MIMO) systems, maximum-likelihood detection (MLD), is impractical because it requires an exhaustive search. This letter formulates MIMO MLD as a pathfinding problem shows it can be solved using a modified ant colony optimization. Simulation results demonstrate that the proposed method achieves near-MLD performance with low computational complexity.