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Design of a fine tuned self-adapt DCF-based protocol

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2 Author(s)
Yong Peng ; Nat. Lab. of Switching Technol. & Telecommun. Networks, Beijing Univ. of Posts & Telecommun., China ; Shiduan Cheng

Numerous researches have shown that the original DCF access mode of IEEE 802.11 has low performance in case of heavy traffic and multi-hop environment [Yong Peng, et al., IEEE GLOBECOM 2002] [Shugong Xu, et al., IEEE GLOBECOM, 2001]. Based on the analysis of previous IEEE 802.11 DCF, [Yong Peng, et al., IEEE GLOBECOM 2002] have introduced a parameter that closely relative to the traffic load of the current wireless LAN and formed a new DCF-based protocol with the name NSAD, which is proved effective in the simple one-hop environment. In this paper, we proposed a new exchange protocol for fine tune NSAD. Our goal is to solve the problems that NSAD encountered in the error-prone multi-hop environment. We have done simulation in a more real environment than we do in NSAD [Yong Peng, et al., IEEE GLOBECOM 2002] and the results have shown that the proposed algorithm can achieve better performance when compared to the original NSAD algorithm (e.g. better property in goodput and fairness, window tuning accuracy).

Published in:

Communication Technology Proceedings, 2003. ICCT 2003. International Conference on  (Volume:2 )

Date of Conference:

9-11 April 2003