Energy efficient video transmission over fast fading channels

Authors:
Dengyu Qiao;Ye Li;Yuwei Zhang
Affiliations:
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China and Key Laboratory for Biomedical Informatics and Health Engineering, Chinese Academy of Sciences, Shenzhen ...;Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China and Key Laboratory for Biomedical Informatics and Health Engineering, Chinese Academy of Sciences, Shenzhen ...;Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China and Key Laboratory for Biomedical Informatics and Health Engineering, Chinese Academy of Sciences, Shenzhen ...
Venue:
EURASIP Journal on Wireless Communications and Networking
Year:
2010

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Abstract

With the explosive development of new generation wireless communication technique, the bandwidth is no longer the bottleneck of the wireless video transmission. Energy consumption is the biggest concern now. In this paper, an energy-efficient variablerate and variable-power modulation method is proposed, which is the optimization of the power and rate of M-QAM signal constellations. Then an adaptive scheme on energy-efficient video transmission over fading channels is proposed. In this scheme, in order to satisfy the requirement with energy efficiency and usage of client/receiver buffer, we implement adaptive selection of modulation level for every video frame, and adaptive power control to compensate the effect by fading channels for every packet. Simulation results show this scheme has good performance on energy saving.