Performance comparison of stall avoidance mechanisms for high speed downlink packet access in the WCDMA system

Li Chun Wang, Chih-Wen Chang, Han Kuang Chang, Chin Yang Hsieh, Sam Jiang

研究成果: Conference contribution

摘要

In this paper. we investigate stall avoidance mechanisms for the W-CDMA system with high speed downlink packet access (HSDPA). The stall avoidance mechanisms are aimed to reduce transmission delays and keep in-sequence delivery of MAC layer data to the upper layer. By analysis and simulation. we compare three stall avoidance mechanisms, including the timer-based, the window-based. and the indicator-based methods. For comparison, we introduce a new performance metric called the gap processing time. Our results show that for Eb/N0 equal to 7 dB in the AWGN channel, the average gap processing time for the indicator-based method is 8.49 transmission time intervals (TTIs) and those for the window-based method and the timer-based method are 36.38 TTIs and 175.5 TTIs, respectively. In a Rayleigh fading channel, we find that the gap processing time of the window-based and the indicator-based methods are higher than in the AWGN channel, while the timer-based method has the same gap processing time in both the AWGN channel and the Rayleigh fading channel.

原文English
主出版物標題PIMRC2003 - 14th IEEE 2003 International Symposium on Personal, Indoor and Mobile Radio Communications, Proceedings
頁面2431-2436
頁數6
DOIs
出版狀態Published - 2003 12月 1
事件14th IEEE 2003 International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC2003 - Beijing, China
持續時間: 2003 9月 72003 9月 10

出版系列

名字IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
3

Other

Other14th IEEE 2003 International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC2003
國家/地區China
城市Beijing
期間03-09-0703-09-10

All Science Journal Classification (ASJC) codes

  • 電氣與電子工程

指紋

深入研究「Performance comparison of stall avoidance mechanisms for high speed downlink packet access in the WCDMA system」主題。共同形成了獨特的指紋。

引用此