Jitter Tolerant Usage Parameter Control Method for ATM-based B-ISDN

Naoaki YAMANAKA  Toyofumi TAKENAKA  Youichi SATO  Ken-ichi SATO  

IEICE TRANSACTIONS on Communications   Vol.E78-B   No.4   pp.485-493
Publication Date: 1995/04/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Traffic and Quality Control for Communication Networks)
ATM,  ATM traffic control,  UPC,  Bandwidth allocation,  B-ISDN,  

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A uniquely-structured Usage Parameter Control (UPC) method named Virtual-shaping is proposed which considers cell arrival time jitter between user and UPC point. The method uses a modified Dangerous Bridge UPC circuit (Sliding window type) and virtually (logically) shapes cell traffic using cell arrival time compensation to offset cell delay variation (CDV). In addition, the proposed method is based on a cell-buffer-less structure and can be realized with reasonable hardware. The method yields precise and accurate monitoring. Computer simulations show that the method offers higher network utilization than the conventional Leaky Bucket based UPC method. The proposed method will make it possible to create more effective B-ISDNs, and more cost-effective broadband VBR services.