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NOSSDAV
2005
Springer

1-800-OVERLAYS: using overlay networks to improve VoIP quality

9 years 6 months ago
1-800-OVERLAYS: using overlay networks to improve VoIP quality
The cost savings and novel features associated with Voice over IP (VoIP) are driving its adoption by service providers. Such a transition however can successfully happen only if the quality and reliability offered is comparable to the existing PSTN. Unfortunately, the Internet’s best effort service model provides no inherent quality of service guarantees. Because low latency and jitter is the key requirement for supporting high quality interactive conversations, VoIP applications use UDP to transfer data, thereby subjecting themselves to performance degradations caused by packet loss and network failures. In this paper we describe two algorithms to improve the performance of such VoIP applications. These mechanisms are used for localized packet loss recovery and rapid rerouting in the event of network failures. The algorithms are deployed on the routers of an application-level overlay network and require no changes to the underlying infrastructure. Initial experimental results indic...
Yair Amir, Claudiu Danilov, Stuart Goose, David He
Added 28 Jun 2010
Updated 28 Jun 2010
Type Conference
Year 2005
Where NOSSDAV
Authors Yair Amir, Claudiu Danilov, Stuart Goose, David Hedqvist, Andreas Terzis
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