Title :
A Novel Adaptive FEC Scheme Integrating Multi-Layer Functions
Author :
Xuefen, Chi ; Wei, Zhang ; Kun, Zhao ; Lin Guan ; Jiao Feng
Author_Institution :
Dept. of Commun. Eng., Jilin Univ., Changchun, China
fDate :
June 29 2010-July 1 2010
Abstract :
A novel packet-level adaptive FEC scheme of the hierarchical video stream in wireless communications is proposed, in which cross layer design is deployed. We formulate the Euclidean Distance of receiving sequence, which is used to estimate packet error rate of wireless channel by receiving side. We extend the analytical model of playable frame rate of video and connect it to the effective utilization rate of FEC. In our scheme, sending end derives real time packet error rate based on the Euclidean Distance metric, which is acknowledged by receiving end, and then computes the number of FEC redundant packets. This number of FEC redundant packets is second-best solution because it makes both playable frame rate of video and FEC effective utilization near to their maximums. The simulation results show that the proposed scheme is able to promote the quality of video services.
Keywords :
forward error correction; packet radio networks; wireless channels; Euclidean distance metric; cross layer design; hierarchical video stream; multi-layer functions; packet-level adaptive FEC scheme; real time packet error rate; receiving sequence; video services quality; wireless channel; wireless communications; Euclidean distance; Forward error correction; Mathematical model; Redundancy; Streaming media; Wireless communication; Euclidean Distance; FEC; playable frame rate; video service;
Conference_Titel :
Computer and Information Technology (CIT), 2010 IEEE 10th International Conference on
Conference_Location :
Bradford
Print_ISBN :
978-1-4244-7547-6
DOI :
10.1109/CIT.2010.275
