TY - GEN
T1 - Dynamic source-channel rate-distortion control under time-varying complexity constraint for wireless video transmission
AU - Kuo, Tsu Hao
AU - Chen, Po Hsuan
AU - Hung, Wei Chih
AU - Huang, Chih Yu
AU - Lee, Chia-Han
AU - Yeh, Ping Cheng
PY - 2012/8/1
Y1 - 2012/8/1
N2 - In recent years, a number of rate-distortion (R-D) optimization schemes have been proposed. These works discussed the joint source-channel rate allocation problem for achieving best end-to-end video transmission quality under limited transmission bit rate. However, encoding complexity, a critical concern for video transmission from mobile devices, was hardly considered. Especially, the time-varying nature of computational resources for mobile devices was largely ignored. In this paper, an on-line adaptive video encoder parameters control scheme is proposed. Simulation results show that the proposed scheme, by dynamically adjusting the encoder parameters in H.264 using the precomputed rate-complexity-distortion (R-C-D) tables, achieves low end-to-end distortion under time-varying channel condition and dynamic computational complexity constraints.
AB - In recent years, a number of rate-distortion (R-D) optimization schemes have been proposed. These works discussed the joint source-channel rate allocation problem for achieving best end-to-end video transmission quality under limited transmission bit rate. However, encoding complexity, a critical concern for video transmission from mobile devices, was hardly considered. Especially, the time-varying nature of computational resources for mobile devices was largely ignored. In this paper, an on-line adaptive video encoder parameters control scheme is proposed. Simulation results show that the proposed scheme, by dynamically adjusting the encoder parameters in H.264 using the precomputed rate-complexity-distortion (R-C-D) tables, achieves low end-to-end distortion under time-varying channel condition and dynamic computational complexity constraints.
UR - http://www.scopus.com/inward/record.url?scp=84864338919&partnerID=8YFLogxK
U2 - 10.1109/WCNC.2012.6214231
DO - 10.1109/WCNC.2012.6214231
M3 - Conference contribution
AN - SCOPUS:84864338919
SN - 9781467304375
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 2566
EP - 2570
BT - 2012 IEEE Wireless Communications and Networking Conference, WCNC 2012
T2 - 2012 IEEE Wireless Communications and Networking Conference, WCNC 2012
Y2 - 1 April 2012 through 4 April 2012
ER -