Energy-Efficient Relay Selection of Cooperative HARQ Based on the Number of Transmissions Over Rayleigh Fading Channels

Cooperative hybrid automatic retransmission request (C-HARQ) is a simple and effective method for wireless communication. Since its performance largely depends on the selection of a relevant relay, the design of an appropriate relay selection scheme is very important. Although various works have been performed on this topic, most of them did not take into account both the “not memoryless” and mult...