Authors: Hongyuan Gao; Yanan Du; Shibo Zhang
Addresses: College of Information and Communication Engineering, Harbin Engineering University, Harbin, China ' College of Information and Communication Engineering, Harbin Engineering University, Harbin, China ' College of Information and Communication Engineering, Harbin Engineering University, Harbin, China
Abstract: In order to obtain optimal selection scheme with multiple source-destination pairs and multiple potential relays in cooperative relay networks, an optimal relay selection scheme is designed in cooperative relay networks considering co-channel interference (CCI). It is an integer optimisation problem for selecting suitable relay nodes to obtain optimal system performance. To get the optimal estimation performance with low computing complexity, quantum flower pollination algorithm (QFPA) is proposed to resolve the difficulties of optimal relay selection, and the proposed optimal relay selection scheme is called as quantum flower pollination algorithm based optimal relay selection (QFPA-ORS). The proposed QFPA combines the advantages of quantum evolutionary theory and flower pollination algorithm (FPA). So QFPA has the capability to search the optimal solution. Simulation results show that QFPA based relay selection scheme has the ability to search global optimal solution compared with other relay selection schemes based on classical algorithm and performs better than three other previous intelligent algorithms.
Keywords: cooperative relay networks; multiple relay selection; quantum flower pollination algorithm; co-channel interference.
International Journal of Wireless and Mobile Computing, 2017 Vol.13 No.4, pp.299 - 305
Received: 20 Sep 2016
Accepted: 22 Jul 2017
Published online: 11 Jan 2018 *