Title :
Iterative video-aware waterfilling algorithm for SVC streaming over OFDMA downlink channel
Author :
Daeyeon Kim ; Fujii, Teruya ; Kyesan Lee
Author_Institution :
Univ. of Electro-Commun., Chofu, Japan
Abstract :
This paper introduced VWF for streaming SVC-streams over OFDMA downlink channel. In order to minimize average video distortion, VWF iteratively obtains user weights by considering RD properties of SVC-streams. It is discussed that minimization of average video distortion also provides fairness among users in terms of video distortion. VWF improves average PSNR over PWF by 2dB, maintaining fairness (in terms of standard deviation of MSE) not inferior to PWF which is designed to provide proportional fairness.
Keywords :
OFDM modulation; frequency division multiple access; iterative methods; mean square error methods; minimisation; rate distortion theory; video coding; video streaming; wireless channels; MSE; OFDMA downlink channel; PSNR; PWF; RD property; SVC streaming; VWF; iterative video-aware waterfilling algorithm; minimization; proportional fairness; standard deviation; video distortion; Bit rate; OFDM; Resource management; Scalability; Standards; Static VAr compensators; Streaming media;
Conference_Titel :
Wireless Information Technology and Systems (ICWITS), 2012 IEEE International Conference on
Conference_Location :
Maui, HI
Print_ISBN :
978-1-4673-0947-9
DOI :
10.1109/ICWITS.2012.6417712