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Achieving End-to-end Fairness in 802.11e Based Wireless Multi-Hop Mesh Networks Without Coordination


To mitigate the damaging impacts caused by interference and hidden terminals, it has been proposed to use orthogonal channels in wireless multi-hop mesh networks. We demonstrate however that even if these issues are completely eliminated with perfectly assigned channels, gross unfairness can still exist amongst competing flows which traverse multiple hops. We propose the use of 802.11e’s TXOP mechanism to restore/enforce fairness. The proposed scheme is simple, implementable using off-the-shelf devices and fully decentralised (requires no message passing).

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    The slowest rate of 802.11b/g is 1 Mbps, while that of 802.11a is 6 Mbps.

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    As all links use the same PHY rate, TXOP’s selected according to Eqs. 1 and 2 are the same.

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Correspondence to Tianji Li.

Additional information

This work is supported by Science Foundation Ireland Grant 03/IN3/I396 and Irish Research Council for Science, Engineering and Technology.

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Li, T., Leith, D.J., Badarla, V. et al. Achieving End-to-end Fairness in 802.11e Based Wireless Multi-Hop Mesh Networks Without Coordination. Mobile Netw Appl 16, 17–34 (2011). https://doi.org/10.1007/s11036-009-0212-3

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  • medium access control (MAC)
  • transmission control protocol (TCP)
  • wireless mesh networks
  • IEEE 802.11
  • IEEE 802.11e
  • max-min fairness