An Adaptive Routing Method for VoIP Gateways Based on Packet Delay Information

Minho JO  HyoungDo KIM  Hyogon KIM  

IEICE TRANSACTIONS on Communications   Vol.E88-B    No.2    pp.766-769
Publication Date: 2005/02/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.2.766
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Network
gateway-level routing,  packet delay,  VoIP,  

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In order to improve the quality of VoIP services, an adaptive routing method is proposed in the application layer of Internet gateways. This method determines routing paths based on the average one-way delays in a predetermined re-routing interval. In order to evaluate the performance of the method, five different routing policies are specifically designed and tested. Experimental results show that the method can improve the QoS of Internet phone services.