PROPOSED UPC MEETING BOTH PACKET VIDEO AND NETWORK GOALS

被引：0
|
作者：
TYE, BJ
DAGIUKLAS, A
GHANBARI, M
机构：
[1] Univ of Essex, Colchester
来源：
IEE PROCEEDINGS-COMMUNICATIONS | 1995年 / 142卷 / 04期
关键词：
TRAFFIC MANAGEMENT IN B-ISDN; ATM; VIDEO COMMUNICATIONS; PACKET VIDEO;
D O I：
10.1049/ip-com:19952036
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A method for optimising the usage parameter control (UPC) of video services in an ATM network is proposed. The video encoder uses a sliding window for its maximum network utilisation without exceeding the declared bit rate at the call setup. At video scene cuts, where the peak bit rates are generated, the coder limits its generated bit rate through a leaky bucket mechanism. The impacts of optimum UPC on both coding and network performance are investigated. It is shown that for video sequences with scene cuts there is an optimum value of peak-to-mean ratio where the network performance is optimised.
引用
收藏
页码：227 / 232
页数：6
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