Half binary exponential increment double decrement back-off algorithm to enhance the saturated throughput of IEEE802.11 wireless LAN

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Jesada Sartthong

Abstract

        In wireless local area network (WLAN), the back-off algorithm is used to reduce the collided packets in carrier sense multiple accesses with collision avoidance protocol (CSMA/CA).  Normally, the collided packets occur when two or more packets are sent in the same timeslot.  This research proposes a new back-off algorithm in retransmission process for improving the saturated throughput of IEEE802.11 WLAN.  A proposed scheme is called half binary exponential increment double decrement (HBEIDD) back-off algorithm. The throughput performance of a proposed algorithm is compared with four existing back-off techniques namely: double increment double decrement (DIDD), exponential increment exponential decrement (EIED), binary exponential increment half decrement (BEIHD), and random increment binary exponential decrement (RIBED) back-off algorithms.  The accuracy of all back-off algorithms is compared in a discrete time Markov chain model in fixed back-off states and contention window (CW) sizes.  Numerical results show that the saturation throughput of HBEIDD back-off algorithm is more stable than the existing back-off techniques under high traffic load condition.

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How to Cite
Sartthong, J. (2019). Half binary exponential increment double decrement back-off algorithm to enhance the saturated throughput of IEEE802.11 wireless LAN. Interdisciplinary Research Review, 14(1), 21–28. Retrieved from https://ph02.tci-thaijo.org/index.php/jtir/article/view/176699
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Research Articles

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