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A control-theoretic approach to improving fairness in DCF based WLANs

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3 Author(s)
Xiaolin Chang ; Dept. of Comput. Sci., Hong Kong Univ. of Sci. & Technol., Kowloon ; Xiaoyang Lin ; Muppala, J.K.

Achieving fair bandwidth distribution among uplink and downlink flows in the infrastructure based wireless local area networks (WLAN) which the distributed coordination function (DCF) mode is difficult. In this paper we present a new control theoretic approach to achieve a fair bandwidth distribution among the flows regardless of the transport protocol used by the flows. In addition, we explore methods to improve the channel bandwidth utilization and reduce the delay while improving the fair distribution. Our approach combines an AQM scheme for IFQ queue and the MAC layer design to achieve this goal. The effectiveness of our approach is demonstrated through extensive simulations over a wide range of network scenarios

Published in:

Performance, Computing, and Communications Conference, 2006. IPCCC 2006. 25th IEEE International

Date of Conference:

10-12 April 2006

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