A Practical Cross-Layer Mechanism For Fairness in 802.11 Networks

A Practical Cross-Layer Mechanism For Fairness in 802.11 Networks,10.1007/s11036-005-4459-z,Mobile Networks and Applications,Joseph Dunn,Michael Neufe

A Practical Cross-Layer Mechanism For Fairness in 802.11 Networks   (Citations: 25)
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Many companies, organizations and communities are providing wireless hotspots that provide networking access using 802.11b wireless networks. Since wireless networks are more sensitive to variations in bandwidth and envi- ronmental interference than wired networks, most networks support a number of transmission rates that have different error and bandwidth properties. Access points can com- municate with multiple clients running at different rates, but this leads to unfair bandwidth allocation. If an access point communicates with a mix of clients using both 1mb/s and 11mb/s transmission rates, the faster clients are effec- tively throttled to 1mb/s as well. This happens because the 802.11 MAC protocol approximate "station fairness", with each station given an equal chance to access the media. We provide a solution to provide "rate proportional fairness", where the 11mb/s stations receive more bandwidth than the 1mb/s stations. Unlike previous solutions to this problem, our mechanism is easy to implement, works with common operating systems and requires no change to the MAC pro- tocol or the stations.
Journal: Mobile Networks and Applications - MONET , vol. 11, no. 1, pp. 37-45, 2006
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