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Designing a fair scheduling mechanism for IEEE 802.11 wireless LANs

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4 Author(s)
Huei-Wen Ferng ; Dept. of Comput. Sci. & Inf. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan ; Chung-Fan Lee ; Jeng-Ji Huang ; Ge-Ming Chiu

A fair scheduling mechanism called distributed elastic round robin (DERR) is proposed in this letter for IEEE 802.11 wireless LANs operated in a distributed manner. To quantify the fairness, we not only derive its fairness bound, but also observe the fairness through ratios of throughput and weight using a simulation approach. By numerical comparisons among DERR, distributed deficit round robin (DDRR), and IEEE 802.11e, we demonstrate that DERR outperforms the other two mechanisms in performance and fairness.

Published in:

Communications Letters, IEEE  (Volume:9 ,  Issue: 4 )