On semi-dynamic contention resolution scheme for IEEE 802.16 BWA systems

Chih Heng Ke, Der Jiunn Deng, Li Wei Chang, Yueh Min Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we proposed a backoff mechanism to improve the performance of initial ranging for the IEEE 802.16 standard. In the proposed scheme, the size of contention window in the initial ranging is combined with exponential and linear backoff mechanisms, and it is adjusted based on the current network environments. In addition, a threshold in the proposed scheme is set to find out the current network situation. If the contention window size is smaller than the threshold, the contention window size is tuned exponentially in response to a light network traffic load. On the other hand, when the contention window size is larger than the threshold, the contention window size is tuned linearly in response to a congested scenario. The numerical simulation results show that the proposed scheme can achieve a better performance in terms of collision rate, average access delay, and system throughput in both light and congested environments.

Original languageEnglish
Title of host publicationProceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
Pages1015-1019
Number of pages5
DOIs
Publication statusPublished - 2009 Nov 30
Event2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 - Leipzig, Germany
Duration: 2009 Jun 212009 Jun 24

Publication series

NameProceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009

Other

Other2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
CountryGermany
CityLeipzig
Period09-06-2109-06-24

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Computer Science Applications
  • Software

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    Ke, C. H., Deng, D. J., Chang, L. W., & Huang, Y. M. (2009). On semi-dynamic contention resolution scheme for IEEE 802.16 BWA systems. In Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 (pp. 1015-1019). (Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009). https://doi.org/10.1145/1582379.1582602