Adaptive Relay Selection Scheme by Using Compound Channel

Applied Sciences

Young-Hwan You¹  Won-Seok Lee²  Min-Jae Paek²  Hyoung-Kyu Song²  Yu-Jin Na²  Duckdong Hwang² 

[1] Department of Computer Engineering, Sejong University, Seoul 05006, Korea;Department of Information and Communication Engineering, Sejong University, Seoul 05006, Korea;

关键词: relay selection;    cooperative systems;    MIMO;    outage probability;    compound channel;    antenna selection;   

DOI  :  10.3390/app10165614

来源: DOAJ

【 摘 要 】

As a cellular network of the fifth generation (5G) is commercialized, mobile devices and data throughput have rapidly increased. According to the spatial density for communication increases, the nodes of cell are overloaded. Therefore, the heterogeneous ultra dense network (UDN) is suggested. Furthermore, the techniques for selecting a relay have been proposed in the Heterogeneous Net (HetNet). The relays are needed to improve communication performance and mitigate overload of nodes. In this paper, an adaptive relay selection scheme is proposed to obtain the diversity gain from multiple relays. To enhance the reliability of communication, the proposed scheme suggests a new algorithm considering outage probability and diversity gain of compound channel. Furthermore, the selected relays use an antenna selection algorithm to improve the channel capacity. Simulation results show that the proposed scheme improves the bit error rate (BER) and the data throughput.

【 授权许可】

Unknown