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TCP Uplink Station-Level Fairness Support in IEEE 802.11 Networks  

Jun, Kyoog-Koo (인천대학교 멀티미디어시스템공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.6B, 2009 , pp. 553-558 More about this Journal
Abstract
There have been various research efforts to support the fairness between uplink and downlink of TCP streams in IEEE 802.11 networks. Existing methods, which have been effective for the fairness, however could not provide the solution for the unfairness caused by the situation in which a station which is having multiple TCP uplink streams monopolizes the uplink bandwidth. This paper proposes a method that AP allocates token buckets for each uplink TCP station. The proposed method is also able to support the fairness between the uplink and downlink. To remedy the underutilization which may happen under token bucket-based schemes, it allows the movement of redundant tokens among the token buckets. By controlling the token movements, it can balance the fairness and the utilization. Simulation results show that the proposed method is able to support the fairness of the TCP uplink stations, as well as the fairness between the uplink and downlink.
Keywords
TCP Fairness; Token Bucket; IEEE 802.11 Networks;
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