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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Higher Education Press and Springer-Verlag Berlin Heidelberg