Adaptive contention resolution parameters for the IEEE 802.16 networks

Authors:
Alexander Sayenko;Olli Alanen;Timo Hamalainen
Affiliations:
Nokia Research Center, Helsinki, Finland;University of Jyvaskyla, Finland;University of Jyvaskyla, Finland
Venue:
The Fourth International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness & Workshops
Year:
2007

Citing 4
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Abstract

In the IEEE 802.16 networks, the base station allocates resources to subscriber stations based on their QoS requirements and bandwidth request sizes. A subscriber station can send a bandwidth request when it has an uplink grant allocated by the base station or by taking part in the contention resolution mechanism. This paper presents analytical calculations for parameters that control the contention resolution process in the IEEE 802.16 networks. In particular, the backoff start/end values and the number of request transmission opportunities are considered. The simulation results confirm the correctness of theoretical calculations. They also reveal that the adaptive parameter tuning results in a better throughput when compared to a static configuration. At the same time, all the timing requirements are met.