A cross layer design to improve video transmission over 802.11e WLANs using error and rate joint control

Yu Cheng Sheu, Chu Sing Yang, Eugene Yeh, Chen Wei Lee

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

The transmission of WLAN could easily suffer from multi-path or noise interference, which in turn leads to packet loss and the subsequent need of retransmission; moreover, these phenomena could easily lead to the decrease in video transmission quality of some delay-sensitive multimedia applications. Therefore, how to improve the video transmission in WLAN thus becomes a very important issue. In this article, a cross-layer design is proposed to improve video transmission over 802.11e WLANs using error and rate joint control. The network condition estimator (NCE) is designed to distinguish network errors caused by congestion or interference at MAC layer. Based on the information provided from application layer and NCE, the packet-selective rate controller (PSRC) and adaptive TXOP error controller (ATEC) are proposed to eliminate the effect caused by network errors and improve video quality. Simulation results reveal that our crosslayer design is capable of reacting to the varying channel condition with less and smoother quality degradation than several distinct cross-layer schemes.

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165-169
頁數5
DOIs
出版狀態Published - 2009
事件2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 - Leipzig, Germany
持續時間: 2009 6月 212009 6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/地區Germany
城市Leipzig
期間09-06-2109-06-24

All Science Journal Classification (ASJC) codes

  • 電腦網路與通信
  • 電腦科學應用
  • 軟體

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