Performance investigation of IEEE 802.11 MAC in multihop wireless networks

Authors:
Jianhua He;Dritan Kaleshi;Alistair Munro;Yiming Wang;Angel Doufexi;Joe McGeehan;Zhong Fan
Affiliations:
University of Bristol, Bristol, United Kingdom;University of Bristol, Bristol, United KingdomUniversity of Bristol, Bristol, United Kingdom;University of Bristol, Bristol, United Kingdom;University of Bristol, Bristol, United Kingdom;University of Bristol, Bristol, United Kingdom;University of Bristol, Bristol, United Kingdom;Toshiba Telecommunications Research Laboratory, Bristol, United Kingdom
Venue:
MSWiM '05 Proceedings of the 8th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
Year:
2005

Citing 11
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Abstract

Medium access control (MAC) protocols have a large impact on the achievable system performance for wireless ad hoc networks. Because of the limitations of existing analytical models for ad hoc networks, many researchers have opted to study the impact of MAC protocols via discrete-event simulations. However, as the network scenarios, traffic patterns and physical layer techniques may change significantly, simulation alone is not efficient to get insights into the impacts of MAC protocols on system performance. In this paper, we analyze the performance of IEEE 802.11 distributed coordination function (DCF) in multihop network scenario. We are particularly interested in understanding how physical layer techniques may affect the MAC protocol performance. For this purpose, the features of interference range is studied and taken into account of the analytical model. Simulations with OPNET show the effectiveness of the proposed analytical approach.