A Failure-Resistant ATM Transport Method for the Transmission of High-Quality Real-Time Signals

Yukiharu KANAYAMA  Kazuhiro FUJIHARA  Toshinori TSUBOI  

IEICE TRANSACTIONS on Communications   Vol.E83-B   No.2   pp.293-298
Publication Date: 2000/02/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (IEICE/IEEE Joint Special Issue on Recent Progress in ATM Technologies)
Category: Traffic Control and Network Management
hitless switching,  ATM,  CDV,  video transmission,  

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This paper proposes a new failure-resistant ATM transport method for real-time applications (FRAT-RA). This method can prevent not only cell loss but also cell delay variation (CDV) even when a network failure occurs. First, a general overview of the existing fault-resistant method is briefly described and its problems for real-time applications are discussed. Next, the proposed FRAT-RA method is described in detail. Finally, evaluation results on the CDV of FRAT-RA and its QoS improvement are presented. The results show that failure-resistant and high-quality transmission of real-time signals can be achieved with FRAT-RA.