Title :
A two-step adaptive error recovery scheme for video transmission over wireless networks
Author :
Qiao, Daji ; Shin, Kang G.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
In this paper, we investigate the transmission of H.263 video sequences over wireless networks with error recovery provided by a two-step adaptive hybrid ARQ scheme using RS codes. Each video frame is divided into data packets for transmission. For each packet transmission, by using a simple table-driven approach, the best RS code is selected from a given set of codes to minimize the transmission overhead. Further, an additional adaptation step is used to guarantee certain QoS requirement. Simulation results show that the proposed error recovery scheme outperforms the traditional single-code schemes and the single-step error recovery schemes thanks to its adaptability to both the wireless channel conditions and the actual frame loss events
Keywords :
Reed-Solomon codes; adaptive codes; automatic repeat request; channel coding; data communication; error correction codes; image sequences; minimisation; mobile radio; packet radio networks; table lookup; video coding; visual communication; H.263; QoS; RS codes; data packets; frame loss events; hybrid ARQ; packet transmission; table-driven approach; transmission overhead minimization; two-step adaptive error recovery; video sequences; video transmission; wireless channel conditions; wireless networks; Automatic repeat request; Delay; Error correction; Error correction codes; Forward error correction; Quality of service; Redundancy; Throughput; Video sequences; Wireless networks;
Conference_Titel :
INFOCOM 2000. Nineteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings. IEEE
Conference_Location :
Tel Aviv
Print_ISBN :
0-7803-5880-5
DOI :
10.1109/INFCOM.2000.832569
