Throughput analysis of cooperative access with Relay's data protocol for unsaturated WLANs

Authors:
Samir Sayed;Yang Yang;Honglin Hu
Affiliations:
University College London, London, UK and Helwan University, Cairo, Egypt;University College London, London, UK;Shanghai Research Center for Wireless Communications (WiCO), China
Venue:
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Year:
2009

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Abstract

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.