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

Heejune AHN  Andrea BAIOCCHI  Jae-kyoon KIM  

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

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Summary: 
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.