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

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

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.

原文English
主出版物標題Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
頁面1330-1334
頁數5
DOIs
出版狀態Published - 2009 十一月 30
事件2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 - Leipzig, Germany
持續時間: 2009 六月 212009 六月 24

出版系列

名字Proceedings 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
國家Germany
城市Leipzig
期間09-06-2109-06-24

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Computer Science Applications
  • Software

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  • 引用此

    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. 於 Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 (頁 1330-1334). (Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009). https://doi.org/10.1145/1582379.1582671