TY - GEN
T1 - Coded wireless video broadcast/ multicast
T2 - 7th ACM Workshop on Wireless Multimedia Networking and Computing, WMuNeP'11, Co-located with MSWiM'11
AU - She, James
AU - Yang, En Hui
AU - Ho, Pin Han
PY - 2011
Y1 - 2011
N2 - A cross-layer framework of interplay between multiple description coding (MDC) at the source and layered modulation using superposition coding (SPC) at the channel has recently been proposed as an effective approach to mitigate the vicious effects due to multi-user diversity and fast Rayleigh fading in wireless video broadcast/ multicast. However, there has not been a rigorous and general end-to-end distortion analysis to determine if and when such interplay between the protection code (such as MDC) in the upper layer and the multi-resolution modulation by way of SPC in PHY/MAC layer for transmitting successively refined information can lead to a better end-to-end distortion performance than other possibilities. The paper provides a comprehensive information theoretical analysis on the end-to-end distortion. Mathematical proofs are derived to confirm the advantages and conditions of such cross-layer systems to always give the better distortion performance. Numerical analysis is conducted to verify the mathematical conclusions while unveiling some interesting observations.
AB - A cross-layer framework of interplay between multiple description coding (MDC) at the source and layered modulation using superposition coding (SPC) at the channel has recently been proposed as an effective approach to mitigate the vicious effects due to multi-user diversity and fast Rayleigh fading in wireless video broadcast/ multicast. However, there has not been a rigorous and general end-to-end distortion analysis to determine if and when such interplay between the protection code (such as MDC) in the upper layer and the multi-resolution modulation by way of SPC in PHY/MAC layer for transmitting successively refined information can lead to a better end-to-end distortion performance than other possibilities. The paper provides a comprehensive information theoretical analysis on the end-to-end distortion. Mathematical proofs are derived to confirm the advantages and conditions of such cross-layer systems to always give the better distortion performance. Numerical analysis is conducted to verify the mathematical conclusions while unveiling some interesting observations.
KW - Cross-layer design
KW - Multiple description coding
KW - Scalable video coding
KW - Superposition modulation
KW - Wireless broadcast/ multicast
UR - http://www.scopus.com/inward/record.url?scp=83055188882&partnerID=8YFLogxK
U2 - 10.1145/2069117.2069123
DO - 10.1145/2069117.2069123
M3 - Conference contribution
AN - SCOPUS:83055188882
SN - 9781450309035
T3 - WMuNeP'11 - Proceedings of the 7th ACM Workshop on Wireless Multimedia Networking and Computing, Co-located with MSWiM'11
SP - 17
EP - 24
BT - WMuNeP'11 - Proceedings of the 7th ACM Workshop on Wireless Multimedia Networking and Computing, Co-located with MSWiM'11
Y2 - 31 October 2011 through 31 October 2011
ER -