標題: A Cooperative Multi-Group Priority MAC Protocol for Multi-Packet Reception Channels
作者: Yang, Wen-Fang
Wu, Jwo-Yuh
Wang, Li-Chun
Lee, Ta-Sung
電子工程學系及電子研究所
友訊交大聯合研發中心
Department of Electronics Engineering and Institute of Electronics
D Link NCTU Joint Res Ctr
關鍵字: Medium access control;multi-packet reception;cooperative communications
公開日期: 1-Nov-2009
摘要: Medium access control (MAC) protocol design for cooperative networks over multi-packet reception (MPR) channels is a challenging topic, but has not been addressed in the literature yet. In this paper, we propose a cooperative multi-group priority (CMGP) based MAC protocol to exploit the cooperation diversity for throughput enhancement over MPR channels. The proposed approach can bypass the computationally-intensive active user identification process. Moreover, our method can efficiently utilize the idle periods for packet relaying, and can thus effectively limit the throughput loss resulting from the relay phase. By means of a Markov chain model, the worst-case throughput analysis is conducted. The results allow us to investigate the throughput performance of the proposed CMGP protocol directly in terms of the MPR channel coefficients. Simulation results confirm the system-wide throughput advantage achieved by the proposed scheme, and also validate the analytic results.
URI: http://dx.doi.org/10.1109/TWC.2009.081516
http://hdl.handle.net/11536/6517
ISSN: 1536-1276
DOI: 10.1109/TWC.2009.081516
期刊: IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
Volume: 8
Issue: 11
起始頁: 5416
結束頁: 5421
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