Title :
An improved traffic modeling scheme for MPEG video over content delivery networks
Author :
Lee, Chu-Chuan ; Lin, Chin-Wei ; Chang, Pao-Chi
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Taoyuan, Taiwan
Abstract :
We propose an improved video traffic modeling scheme, delay-tolerant multi-leaky-bucket (DTMLB), for video streaming applications over the Internet. Based on the original multi-leaky-bucket modeling method (MLB), DTMLB parameterizes the actual traffic cumulative function instead of the empirical envelope function used by MLB. Moreover, DTMLB incorporates different delay tolerance characteristics among I-frames, P-frames, and B-frames of video to improve the overall bandwidth utilization. Simulation results show that DTMLB provides higher modeling accuracy and higher bandwidth utilization than the MLB and the peak rate modeling methods do. Furthermore, in our simulations, DTMLB generates the least burst traffic into the subsequent nodes of networks among all three methods tested.
Keywords :
Internet; code standards; data compression; delays; image sequences; telecommunication standards; telecommunication traffic; video coding; B-frames; DTMLB; I-frames; Internet; MPEG video; P-frames; bandwidth utilization; burst traffic; content delivery networks; delay tolerance characteristics; delay-tolerant multi-leaky-bucket; modeling accuracy; multi-leaky-bucket modeling method; peak rate modeling methods; simulation results; traffic cumulative function; traffic modeling; video streaming applications; Bandwidth; Delay; Internet; Laboratories; Network servers; Stochastic processes; Streaming media; Telecommunication traffic; Traffic control; Web server;
Conference_Titel :
Communication Systems, 2002. ICCS 2002. The 8th International Conference on
Print_ISBN :
0-7803-7510-6
DOI :
10.1109/ICCS.2002.1183224