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As Wireless Adhoc network is usually used in the critical situations, its efficiency and performance is significant. Since MAC is the fundamental layer, the design of an efficient and high performance underlying MAC protocol is significant for the overall performance of the ad hoc network. In the IEEE 802.11 standard the network nodes use a Binary Exponential Backoff (BEB) method in which on each collision on the shared channel, nodes sending collided packets need to backoff for a random period of time, which is uniformly selected from the Contention Window (CW) and it is doubled after each collision and immediately reduces to a minimum value after a single successful transmission.
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