TY - JOUR
T1 - A smooth broadcasting scheme for VBR-encoded hot videos
AU - Yu, Hsiang Fu
AU - Yang, Hung Chang
AU - Ho, Pin Han
AU - Chen, Yi Ming
AU - Tseng, Li Ming
N1 - Funding Information:
The authors would like to thank the National Science Council of the Republic of China for financially supporting this research under conduct No. NSC 94-2213-E-008-026.
PY - 2006/9/5
Y1 - 2006/9/5
N2 - One way of broadcasting a popular video is partitioning the video into segments, each being broadcasted on several streams periodically. The approach alleviates the bandwidth thirsty in real-time video broadcasting without sacrificing viewers' waiting time by allowing multiple users to share the same video segments. One representative scheme of the category is the recursive frequency-splitting (RFS) broadcasting scheme, which yields approximate minimum waiting time. In this paper, a novel approach is introduced to enhance RFS, called Smooth RFS (SRFS), in which the approaches of segment patching and asynchronous downloading-playing are proposed for achieving a smooth broadcast of variable-bit-rate (VBR) -encoded videos. The design of SRFS aims to reduce the peak bandwidth consumption and variance during the distribution of VBR videos in order to achieve better upper bounds on the bandwidth peak and the variance. Extensive simulation has been conducted on the proposed scheme by comparing a number of past reported counterparts, including the trace-adaptive fragmentation (TAF) scheme and the smooth fast broadcasting (SFB) scheme. The results indicate that the proposed scheme yields lower bandwidth peak and variance. Besides, given a fixed bandwidth that is smaller than the peak, SRFS obtains a much smaller blocking rate than that of the other schemes.
AB - One way of broadcasting a popular video is partitioning the video into segments, each being broadcasted on several streams periodically. The approach alleviates the bandwidth thirsty in real-time video broadcasting without sacrificing viewers' waiting time by allowing multiple users to share the same video segments. One representative scheme of the category is the recursive frequency-splitting (RFS) broadcasting scheme, which yields approximate minimum waiting time. In this paper, a novel approach is introduced to enhance RFS, called Smooth RFS (SRFS), in which the approaches of segment patching and asynchronous downloading-playing are proposed for achieving a smooth broadcast of variable-bit-rate (VBR) -encoded videos. The design of SRFS aims to reduce the peak bandwidth consumption and variance during the distribution of VBR videos in order to achieve better upper bounds on the bandwidth peak and the variance. Extensive simulation has been conducted on the proposed scheme by comparing a number of past reported counterparts, including the trace-adaptive fragmentation (TAF) scheme and the smooth fast broadcasting (SFB) scheme. The results indicate that the proposed scheme yields lower bandwidth peak and variance. Besides, given a fixed bandwidth that is smaller than the peak, SRFS obtains a much smaller blocking rate than that of the other schemes.
KW - Hot-video broadcasting
KW - Variable-bit-rate (VBR)
KW - Video-on-demand (VOD)
UR - http://www.scopus.com/inward/record.url?scp=33747187194&partnerID=8YFLogxK
U2 - 10.1016/j.comcom.2006.04.003
DO - 10.1016/j.comcom.2006.04.003
M3 - 期刊論文
AN - SCOPUS:33747187194
SN - 0140-3664
VL - 29
SP - 2904
EP - 2916
JO - Computer Communications
JF - Computer Communications
IS - 15
ER -