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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 15, NO. 5, MAY 2005 645 Power-Rate-Distortion Analysis for Wireless Video
 

Summary: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 15, NO. 5, MAY 2005 645
Power-Rate-Distortion Analysis for Wireless Video
Communication Under Energy Constraints
Zhihai He, Member, IEEE, Yongfang Liang, Student Member, IEEE, Lulin Chen, Senior Member, IEEE,
Ishfaq Ahmad, Senior Member, IEEE, and Dapeng Wu, Member, IEEE
Abstract--Mobile devices performing video coding and
streaming over wireless and pervasive communication networks
are limited in energy supply. To prolong the operational lifetime of
these devices, an embedded video encoding system should be able
to adjust its computational complexity and energy consumption
as demanded by the situation and its environment. To analyze,
control, and optimize the rate-distortion (R-D) behavior of the
wireless video communication system under the energy constraint,
we develop a power-rate-distortion (P-R-D) analysis framework,
which extends the traditional R-D analysis by including another
dimension, the power consumption. Specifically, in this paper, we
analyze the encoding mechanism of typical video coding systems,
and develop a parametric video encoding architecture which is
fully scalable in computational complexity. Using dynamic voltage
scaling (DVS), an energy consumption management technology

  

Source: Ahmad, Ishfaq - Department of Computer Science and Engineering, University of Texas at Arlington
Wu, Dapeng Oliver - Department of Electrical and Computer Engineering, University of Florida

 

Collections: Computer Technologies and Information Sciences; Engineering