A modified binary exponential backoff algorithm for improving the quality of service in highly populated IEEE 802.11e networks

The performances of a modified binary exponential backoff algorithm intended for use in IEEE 802.11e wireless local area networks (WLANs) accommodating a great number of users and different types of traffic are investigated. After the successful finalization of a transmission this algorithm operates a decrease of the current contention window size of the involved backoff entity by multiplying it with a subunitary scalar. OPNET Modeler network simulator is used to generate the results.