Wireless Energy Harvesting Relaying Networks Combined with Antenna Selection

In this paper, a novel opportunistic scheduling (OS) scheme with antenna selection (AS) for the energy harvesting (EH) cooperative communication system where the relay node can harvest energy from the source transmission is proposed. To facilitate EH and information processing simultaneously, we consider the power-splitting (PS) protocol at the multiple-antenna relay. Unlike the existing OS strategy, where the OS is only exploited at the source-to-relay or the relay-to-destination link, our proposed OS-based on the AS (OS-AS) scheme can achieve much transmission performance. Moreover, in the framework of an amplify-and-forward relaying network, the closed-form analytical expressions for the outage probability and ergodic capacity are derived in general signal-to-noise ratio (SNR) regime. Simulation results validate the accuracy of the proposed scheme, and also demonstrate that the proposed OS-AS strategy outperforms the other benchmark schemes.