A novel sub-domain cooperative scheme in random relay selection wireless networks

Abstract

In this paper, we consider the random relay selection for wireless cooperative communication systems with multiple relays. We present a sub-domain scheme to select less relay nodes before transmission instead of all the relay nodes to join the cooperative communication process, as well as an estimation method to determine the number of required relays. Numerical results has validated the effectiveness of the proposed scheme using less relay resources without significant performance degradation.