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A Cross-Layer Fine-Tuning Scheduling Scheme to Provide Proportional Delay Differentiation in a Wireless LAN

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4 Author(s)
Yuan Cheng Lai ; Nat. Taiwan Univ. of Sci. & Technol., Taipei ; Chang, A. ; Ching-Neng Lai ; Chih-Chung Lin

This paper addresses how to provide the proportional delay differentiation (PDD) in a wireless LAN (WLAN) and proposes a cross-layer fine-tuning scheduling (CFS) scheme with the goal to maintain PDD among all wireless stations while improving performance in a WLAN. CFS additionally considers the time-varying channel capacity to schedule packets, finely tunes the contention window, and properly arbitrates the backoff time. Also, it operates in a fully distributed manner among all stations and in a cross- layer approach in each station. The simulation results demonstrate that the CFS scheme can provide more satisfactory PDD and higher performance in a WLAN, compared with 802.11e.

Published in:

Advanced Information Networking and Applications, 2008. AINA 2008. 22nd International Conference on

Date of Conference:

25-28 March 2008