Title :
Adaptive Transmission of Multi-Layered Video over Wireless Fading Channels
Author :
Jun Xu ; Xuemin Shen ; Mark, J.W. ; Jun Cai
Author_Institution :
Univ. of Waterloo, Waterloo
fDate :
6/1/2007 12:00:00 AM
Abstract :
In this paper, adaptive transmission of scalable multi-layered video with quality of service (QoS) assurance over wireless channels is studied. By properly formulating the channel fading as a finite state Markov channel (FSMC) model, three rate adaptation schemes, namely, assured-rate-allocation, neighbor- interleaving, and swing-loaded schemes, are proposed to exploit the inherent multiplexing gain. An analytical model for QoS performance evaluation of video transmission over time-varying erroneous channels is derived. The accuracy of the analytical model is validated by simulations. Analytical and simulation results demonstrate that the proposed rate adaptation schemes can effectively improve the channel utilization and the system throughput.
Keywords :
Markov processes; fading channels; quality of service; time-varying channels; video communication; adaptive transmission; assured-rate-allocation scheme; finite state Markov channel model; multi-layered video; multiplexing gain; neighbor-interleaving scheme; quality of service assurance; rate adaptation schemes; swing-loaded scheme; time-varying erroneous channels; wireless fading channels; Analytical models; Bit error rate; Delay; Fading; IP networks; Quality of service; Resource management; Streaming media; Upper bound; Web and internet services;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2007.05838
