Title :
Channel-adaptive hybrid ARQ/FEC for robust video transmission over 3G
Author :
Wen, Jianwei ; Dai, Qionghai ; Jin, Yihui
Author_Institution :
Dept. of Autom., Tsinghua Univ., Beijing, China
Abstract :
This paper addresses the important issues of error control for video transmission over 3G. Based on the time-varying wireless channel conditions and the essential defects of the traditional hybrid ARQ for real-time service, the architecture of the channel-adaptive hybrid ARQ/FEC is presented, moreover an algorithm for encoder is given to automatically adjust the parity data length and the maximum number of retransmissions. The experimental studies show that the transmission efficiency of the proposed algorithm increased 13% than the traditional hybrid ARQ.
Keywords :
3G mobile communication; adaptive codes; automatic repeat request; channel coding; forward error correction; video coding; video communication; wireless channels; 3G network; automatic retransmission request; channel-adaptive hybrid ARQ-FEC; encoder; forward error correction; parity data length; time-varying wireless channel; video transmission; Automatic repeat request; Bandwidth; Bit error rate; Delay; Error analysis; Error correction; Forward error correction; Robustness; Telecommunication traffic; Wireless networks;
Conference_Titel :
Multimedia and Expo, 2005. ICME 2005. IEEE International Conference on
Print_ISBN :
0-7803-9331-7
DOI :
10.1109/ICME.2005.1521490
