Title :
A QoS enhanced hybrid SR-ARQ for mobile video communications
Author :
Wang, Sherry ; Zheng, Harold ; Copeland, John A.
Author_Institution :
Commun. Syst. Center, Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
A hybrid QoS aware SR-ARQ (HQSR-ARQ) is proposed to increase the network throughput for video delivery in a bandwidth limited and error prone wireless mobile environment with certain deterministic guarantees. HQSR-ARQ balanced the pros and the cons of the conventional SR-ARQ and FEC for error control. It also utilized the layer property of MPEG to provide more network resources for important data sections within a video stream. Comprehensive computer simulations were used to compare the performance of HQSR-ARQ with a conventional SR-ARQ and the original QSR-ARQ in terms of the same QoS matrix. The results demonstrated the effectiveness and performance improvement of HQSR-ARQ
Keywords :
automatic repeat request; code standards; digital simulation; fading channels; forward error correction; land mobile radio; quality of service; telecommunication standards; video coding; visual communication; FEC; HQSR-ARQ; MPEG; QSR-ARQ; QoS enhanced hybrid SR-ARQ; QoS matrix; bandwidth limited wireless mobile environment; computer simulations; deterministic guarantees; error prone wireless mobile environment; fast fading channel simulator; forward error control; hybrid QoS aware SR-ARQ; layer property; mobile video communications; network resources; network throughput; performance; protocol design; video delivery; video stream; wireless mobile network; Automatic control; Automatic repeat request; Bit rate; Decoding; Delay; Error correction; Forward error correction; Mobile communication; Quality of service; Video compression;
Conference_Titel :
Communications, 2000. ICC 2000. 2000 IEEE International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-6283-7
DOI :
10.1109/ICC.2000.853374
