Joint optimization in MIMO multiple relay channels

Abstract

The joint optimization of cooperative relays in a multiple-input multiple-output (MIMO) multiple relay aided communication system is discussed in this article. A simple linear optimization solution is designed and a multi-user scheduling algorithm is proposed. The new algorithm chooses users with larger cooperation diversity gains from the waiting list to serve; it can reduce inter-user interference and maintain space diversity caused by parallel transmission of multiple relays, and achieve higher system throughput.

Keywords

multi-relay cooperation / joint optimization / multi-user scheduling / space diversity

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Acknowledgements

This work was supported by the National Basic Research Program of China (No. 2007CB310603), the National Natural Science Foundation of China (Grant Nos. 60672093, 60496310), and the National Hi-Tech Research and Development Program of China (No. 2007AA01Z262).

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg