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http://dx.doi.org/10.6109/jkiice.2017.21.3.509

Trust Degree Information based Relay Selection in Cooperative Communication with Multiple Relays  

Ryu, Jong Yeol (Department of Information and Communications Engineering, Gyeongsang National University)
Kim, Seong Hwan (Department of Information and Communications Engineering, Gyeongsang National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.21, no.3, 2017 , pp. 509-515 More about this Journal
Abstract
In this paper, for a cooperative communication system with multiple relays, we consider a relay selection method by exploiting the trust degree information of relay nodes. In the cooperative communication system, we interpret the trust degree of relays as the probability that relay helps the communication between the transmitter and receiver. We first provide an expected achievable rate at the receiver by taking into account the both cases that the relay helps the transmission of transmitter and the relay does not help the transmission of transmitter according to its trust degree. For given trust degree information, we propose an efficient relay selection method to maximize the expected achievable rate at the receiver. For the various configurations, the simulation results confirm that the proposed relay selection method outperforms the conventional relay selection method, which does not consider the trust degree of relay nodes.
Keywords
Trust degree information; cooperative communications; relay selection; diversity;
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