Title :
Energy-efficient wireless video streaming with H.264 coding
Author :
Raoufi, Pariya ; Peters, Jochen
Author_Institution :
Sch. of Comput. Sci., Simon Fraser Univ., Surrey, BC, Canada
Abstract :
Broadcasting multimedia content over a wireless channel from a base station to wireless devices is a challenging trade-off between the limited battery power of wireless devices and the quality expected by users. A further complication is that the data rate of a wireless channel changes over time. In this paper, we develop a Power-Rate-Buffer-Distortion optimization framework with the goal of minimizing the energy consumption of a wireless receiver subject to quality and data rate constraints. Our framework provides a method for selecting coding parameters, such as bit rate and intra refresh rate, in a way that minimizes the energy consumption of the receiver. Our simulation results show that our framework can reduce energy consumption by up to 50% compared to the conventional AVC video streaming method, depending on the required video quality.
Keywords :
multimedia communication; rate distortion theory; video coding; video streaming; wireless channels; AVC video streaming method; H.264 coding; base station; battery power; bit rate; coding parameter selection; data rate constraint; energy consumption minimization; energy-efficient wireless video streaming; intrarefresh rate; multimedia content broadcasting; power-rate-buffer-distortion optimization framework; quality constraint; video quality; wireless channel; wireless device; wireless receiver; Bit rate; Decoding; Encoding; Energy consumption; PSNR; Receivers; Streaming media; Mobile video streaming; energy optimization; quality optimization;
Conference_Titel :
Multimedia and Expo Workshops (ICMEW), 2013 IEEE International Conference on
Conference_Location :
San Jose, CA
DOI :
10.1109/ICMEW.2013.6618340