Evalvid-RASV: Shaped VBR Rate Adaptation Stored Video System
Video traffic is a variable bit rates (VBR) data source in nature and it generates highly bursty traffic. Recent implementations mostly buffer the media source in order to regenerate it in the form of constant bit rates (CBR). Consequently, it will add more delays to the system and thus unable to support the original nature of the video data. Inspired by the works of Hamdi et al. and Lie and Klaue, we developed Evalvid-RASV. This system is working on the VBR concept (open-loop video coding), but it is shaped so that it will not produce uncompromised bursty traffic without additional delay. With the knowledge of video characteristics in advance, Evalvid-RASV was developed to utilize the information resulting a better algorithm. In addition, we implemented the system in Evalvid-RA environment. It is an environment which is able to perform rate adaptation to the media data source and has an integrated video performance evaluation tools, especially user-perceived video quality.Our experiments have shown that Evalvid-RASV outperforms open-loop VBR in term Peak Signal Noise Ratio (PSNR) value and acceptable delay time.
Stored Video Evalvid Leaky-bucket algorithm Shaped VBR bursty traffic
A.Suki M.Arif Suhaidi Hassan Osman Ghazali Shahrudin Awang Nor
lnterNetWorks Research Group, UUM College of Arts and Sciences Universiti Utara Malaysia, 06010 UUM Sintok, Kedah, Malaysia
国际会议
上海
英文
246-250
2010-06-22（万方平台首次上网日期，不代表论文的发表时间）