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arXiv · 1510.07355

A Low-Complexity Gaussian Message Passing Iterative Detector for Massive MU-MIMO Systems

Lei Liu·Chau Yuen·Yong Liang Guan·Ying Li·Yuping Su
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Abstract

This paper considers a low-complexity Gaussian Message Passing Iterative Detection (GMPID) method over a pairwise graph for a massive Multiuser Multiple-Input Multiple-Output (MU-MIMO) system, in which a base station with M antennas serves K Gaussian sources simultaneously. Both K and M are large numbers and we consider the cases that K (\sqrt{2}-1)^2$. Therefore, a new convergent GMPID with equally low complexity called SA-GMPID is proposed, which converges to the MMSE detection for any K< M with a faster convergence speed. Finally, numerical results are provided to verify the validity and accuracy of the proposed theoretical results.

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Lei Liu, Chau Yuen, Yong Liang Guan, Ying Li, Yuping Su. 2015-10-26. A Low-Complexity Gaussian Message Passing Iterative Detector for Massive MU-MIMO Systems. https://doi.org/10.1109/icics.2015.7459842

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