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A Proposal for an Asymmetric Best-Effort Service

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Media Streaming with Conservative Delay on Variable Rate Channels

Pascal Frossard, Dan Jurca

We address the problem of delay-constrained streaming of multimedia packets over dynamic bandwidth channels. Efficient streaming solutions generally rely on the knowledge of the channel bandwidth, in order to select the media packets to be transmitted, acc ...

2006

Delay aspects in Internet telephony

Catherine Boutremans

In this work, we address the transport of high quality voice over the Internet with a particular concern for delays. Transport of interactive audio over IP networks often suffers from packet loss and variations in the network delay (jitter). Forward Error ...

EPFL2003

Measurement and Analysis of Single-Hop Delay on an IP Backbone Network

Patrick Thiran

We measure and analyze the single-hop packet delay through operational routers in the Sprint Internet protocol (IP) backbone network. After presenting our delay measurements through a single router for OC-3 and OC-12 link speeds, we propose a methodology t ...

2003

A novel forwarding paradigm for position-based routing (with implicit addressing)

Jörg Widmer

Existing position-based unicast routing algorithms which forward packets in the geographic direction of the destination require that the forwarding node knows the positions of all neighbors in its transmission range. This information on direct neighbors is ...

2003

Impact of link failures on VoIP performance

Catherine Boutremans

We use active and passive traffic measurements to identify the issues involved in the deployment of a voice service over a tier-1 IP backbone network. Our findings indicate that no specific handling of voice packets (i.e. QoS differentiation) is needed in ...

2002

Impact of link failures on VoIP performance

Catherine Boutremans

2002

ABE: Providing a Low-Delay Service within best-effort

Jean-Yves Le Boudec, Patrick Thiran, Paul Hurley

We propose Alternative Best-Effort (ABE), a novel service for IP networks, which relies on the idea of providing low-delay at the expense of maybe less throughput. The objective is to retain the simplicity of the original Internet single class, best effort ...

2001

Adaptive Delay Aware Error Control for Internet Telephony

Jean-Yves Le Boudec, Catherine Boutremans

Forward Error Correction copes with packet losses, but at the expense of an increase of the end-to-end delay. By failing to take this into account, existing error control schemes for audio often lead to end-to-end delays larger than 150 ms, which has an im ...

2001

ABE: Providing a Low Delay Service Within Best-Effort

Jean-Yves Le Boudec, Patrick Thiran, Paul Hurley

We propose Alternative Best-Effort (ABE), a novel service for IP networks, which retains the simplicity of the original Internet single class, best effort service, while providing low delay to interactive, adaptive applications. With ABE, applications choo ...

2000

Adaptive Delay aware error control for Internet Telephony

Jean-Yves Le Boudec, Catherine Boutremans

2000