A four-way-polling QoS scheduler for IEEE 802.11e HCCA

Jeng Ji Huang, Yeh Horng Chen, David Shiung

研究成果: Conference contribution

7 引文 斯高帕斯(Scopus)

摘要

In IEEE 802.11e, a centralized polling based channel access mechanism is provided for the quality-of-service (QoS) provision of real-time applications. In order to improve band-width efficiency of polling for uplink variable bit rate (VBR) sources, it has previously been proposed in, e.g., ARROW, that the amount of backlogged traffic is fed back for exact bandwidth allocation. However, due to that the feedback and the bandwidth allocation are performed separately in two different polls, transmission latency incurred by packets could cause them to violate delay constraint. In this paper, a four-way-polling scheduler is first proposed by directly inquiring buffer occupancy information of an uplink station during a poll. Theoretical analysis is then performed to evaluate the performance of both the proposed scheduler and ARROW. From both analytical and ns-2 simulation results, it is shown that packet loss rates can effectively be reduced and more capacity can thereby be obtained under the proposed scheduler, as compared with ARROW.

原文English
主出版物標題TENCON 2010 - 2010 IEEE Region 10 Conference
頁面1986-1991
頁數6
DOIs
出版狀態Published - 2010 十二月 1
事件2010 IEEE Region 10 Conference, TENCON 2010 - Fukuoka, Japan
持續時間: 2010 十一月 212010 十一月 24

出版系列

名字IEEE Region 10 Annual International Conference, Proceedings/TENCON

Other

Other2010 IEEE Region 10 Conference, TENCON 2010
國家Japan
城市Fukuoka
期間10-11-2110-11-24

    指紋

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering

引用此

Huang, J. J., Chen, Y. H., & Shiung, D. (2010). A four-way-polling QoS scheduler for IEEE 802.11e HCCA. 於 TENCON 2010 - 2010 IEEE Region 10 Conference (頁 1986-1991). [5686547] (IEEE Region 10 Annual International Conference, Proceedings/TENCON). https://doi.org/10.1109/TENCON.2010.5686547