An Efficient Standard-Compatible Traffic Description Parameter Selection Algorithm for VBR Video Sources

Heejune AHN
Jae-kyoon KIM

IEICE TRANSACTIONS on Communications   Vol.E84-B    No.12    pp.3274-3277
Publication Date: 2001/12/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories
dual leaky buckets,  critical time scale,  CAC,  UPC,  

Full Text: PDF(179.7KB)>>
Buy this Article

The international telecommunication standards bodies such as ITU-T, ATM Forum, and IETF recommend the dual leaky bucket for the traffic specifications for VBR service. On the other hand, recent studies have demonstrated multiple time-scale burstiness in compressed video traffic. In order to fill this gap between the current standards and real traffic characteristics, we present a standard-compatible traffic parameter selection method based on the notion of a critical time scale (CTS). The defined algorithm is optimal in the sense that it minimizes the required amount of link capacity for a traffic flow under a maximum delay constraint. Simulation results with compressed video traces demonstrate the efficiency of the defined traffic parameter selection algorithm in resource allocation.