Enhancement of the Back-To-Back Throughput Performance of Ieee 802.11 by Routine Fine-Tuning of the Channel Access Probability

We propose a fully distributed contention window adaptation (CWA) mechanism, which adjusts the channel access probability depending on the difference between the incoming and outgoing traffic at each node, in order to equate the traffic forwarding capabilities among all the nodes in the path to improve the throughput of multihop wireless networks, The following issues are to be considered, how to estimate the traffic forwarding capability at each node, how to differentiate the contention window size depending on the traffic forwarding capability and how to increase the end-to-end throughput by regulating the throughput of traffic relayed at each hop in a distributed and scalable manner.