Abstract
The next generation wireless networks aim to provide users with always-best connectivity through available different access networks. In this paper, we consider heterogeneous of worldwide interoperability for microwave access (WiMAX) and wireless local area network (WLAN). These heterogeneous networks suffer from low bandwidth utilization and access delay with contention based bandwidth request through single stage truncated binary exponential backoff (TBEB) algorithm. To resolve contention effectively, we propose exponential increase exponential decrease (EIED) backoff with multistage contention resolution (MSCR). The results show that the proposed backoff scheme outperforms the conventional TBEB scheme with an improvement of 35.29% in access delay, 26.67% in queuing delay and 67.65% in throughput.
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