An enhanced uplink scheduling algorithm for video traffic transmission in IEEE 802.16 BWA systems

Yeong Sheng Chen, Der-Jiunn Deng, Yu Ming Hsu, Sheng De Wang

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

1 Citation (Scopus)

Abstract

One of the major challenges in transmitting real time video data in broadband wireless access (BWA) systems is that the bit rate of the video traffic varies from time to time, and hence the bandwidth utilization is low. To cope with the difficulties, we propose an enhanced uplink scheduling algorithm for variable bit rate video (VBR) traffic transmission in IEEE 802.16 BWA systems. In the proposed algorithm, the base station (BS) assigns uplink bandwidth to the video user by considering the traffic state transitions. The uplink bandwidth is divided into several intervals and each interval represents a traffic state. Only when the traffic state is changed, the bandwidth request process is incurred. Also, by using two reserved bits in the generic MAC header of IEEE 802.16 BWA systems as piggyback bits, the information of video traffic state transition can be sent to the BS without extra overhead. Simulations conducted with QualNet show that the proposed algorithm provides better performance in that the bandwidth waste ratio of our proposed algorithm is less than that of the conventional algorithms.

Original languageEnglish
Title of host publicationProceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
Pages1330-1334
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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  • Cite this

    Chen, Y. S., Deng, D-J., Hsu, Y. M., & Wang, S. D. (2009). An enhanced uplink scheduling algorithm for video traffic transmission in IEEE 802.16 BWA systems. In Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 (pp. 1330-1334). (Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009). https://doi.org/10.1145/1582379.1582671