Adaptation with reduced-size message pass to precoder selection in multi-cell MIMO systems

Abstract

This paper addresses the optimization of a multicell network where each cell needs to select precoding matrices for beamforming in a distributed way. A modified version of the adaptive min-sum algorithm that considers reduced-size messages in the message-passing procedure is proposed. The message-passing technique, where each message is reduced to convey only part of usual information, is applied to maximize the system throughput leading to a faster adaptation procedure. Simulation results show this reduction leads to a small average performance loss in system throughput of approximately 6%, while generally reduces the message size in about 73%. Also, the proposed method still outperforms the baseline greedy technique.

DOI: 10.1109/SAM.2016.7569689

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Cite this paper

@article{Guerreiro2016AdaptationWR, title={Adaptation with reduced-size message pass to precoder selection in multi-cell MIMO systems}, author={Igor M. Guerreiro and Charles Casimiro Cavalcante and Dennis Hui}, journal={2016 IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM)}, year={2016}, pages={1-4} }