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IEICE TRANSACTIONS on Communications

Precise UPC Scheme Suitable for ATM Networks Characterized by Widely Ranging Traffic Parameter Values

Naoaki YAMANAKA, Youichi SATO, Ken-ichi SATO

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Summary :

This letter proposes a new UPC (Usage Parameter Control) method suitable for monitoring/controlling the ATM cell streams of VCs (Virtual Channels) and VPs (Virtual Paths) specified with a wide-range of traffic parameter values. The method, named the 2-phase T-X method, combines two credit window type monitoring circuits that are shifted in phase by T/2. The proposed method achieves the best of both the DB and T-X methods. Its cell mis-policing rate is very low (equivalent to that of the DB-method) while its minimal hardware requirements are equal to those of the T-X method. The proposed method ensures more effective network resource (link) utilization. As a result, the proposed method is shown to be a credible UPC technique for handling broadband VBR (Variable Bit Rate) traffic in ATM based multimedia networks.

Publication
IEICE TRANSACTIONS on Communications Vol.E75-B No.12 pp.1367-1372
Publication Date
1992/12/25
Publicized
Online ISSN
DOI
Type of Manuscript
LETTER
Category
Communication Networks and Service

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