Throughput analysis of cooperative access with Relay's data protocol for unsaturated WLANs
Samir G. Sayed, Yang Yang, Honglin Hu · 2009
The concept of cooperative communication has been proposed to improve link capacity, transmission reliability and network coverage in multiuser wireless communication networks. Different from conventional point-to-point and point-to-multipoint communications, cooperative communication allows multiple users or nodes in a wireless network to coordinate their packet transmissions and share each other's resources, thus achieving cooperative diversity. In this paper, we analyze the throughput performance of a cooperative MAC protocol called Cooperative Access with Relay's Data (CARD) under unsaturated traffic conditions in wireless local area networks (WLANs). A Markov chain model is developed to derive the analytical results which are verified by extensive computer simulations.