By Topic

Distortion optimized bandwidth allocation on cluster of Video-on-Command servers

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Xin Li ; Sch. of Electron. & Inf. Eng., Beijing Jiaotong Univ., Beijing ; Hongke Zhang

An optimal bandwidth allocation scheme for cluster video on command (VOD) servers system is introduced in the paper. An analytic model of video distortion and server nodepsilas bandwidth limitation is proposed. The bandwidth allocation is considered as an optimization problem with the constraints of video quality and link capacity. The bandwidth occupation is dynamically adjusted according to observed available bit rate (ABR) and round-trip time (RTT). Compared with TCP additive increase multiplicative decrease (AIMD) scheme, the proposed scheme benefits from lowering bandwidth cost while network degradation is detected and hereby avoids network congestion, and can reduce the average packet loss ratio from 17% to 1.8% while improving the video quality 3.5 dB in PSNR.

Published in:

Signal Processing, 2008. ICSP 2008. 9th International Conference on

Date of Conference:

26-29 Oct. 2008