An Improved Relay Selection of Cooperative MIMO Based on Channel Priority Matching Algorithm

In recent years, cooperative communication as well as relay selection problem have been known as a new research area that may provide many interesting applications in practical networking system. In this paper we consider a cooperative multiple input multiple output (Co-MIMO) system in which multiple antenna of mobile terminals are used. We examine the content of centralized cooperative relay selection and propose a new relay selection method based on channel priority matching algorithm. In the specific algorithm, we presented thresholds for Worst-Link-First Matching (WLF). Theoretical and simulated results indicated that our proposed algorithm can achieve higher performance and lower computational complexity. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.