NDLI: A framework for guaranteeing statistical QoS

Content Provider	ACM Digital Library
Author	Reisslein, Martin Rajagopal, Srinivas Ross, Keith W.
Abstract	Continuous-media traffic (i.e., audio and video) can tolerate some loss but has rigid delay constraints. A natural QoS requirement for a continuous-media connection is a prescribed limit on the fraction of traffic that exceeds an end-to-end delay constraint. We propose and analyze a framework that provides such a statistical QoS guarantee to traffic in a packet-switched network. Providing statistical guarantees in a network is a notoriously difficult problem because traffic flows lose their original statistical characterizations at the outputs of queues. Our scheme uses bufferless statistical multiplexing combined with cascaded leaky buckets for smoothing and traffic contracting. This scheme along with a novel method for bounding the loss probability gives a tractable framework for providing end-to-end statistical QoS. Using MPEG video traces, we present numerical results that compare the connection-carrying capacity of our scheme with that of guaranteed service schemes (i.e., no loss) using GPS and RCS. Our numerical work indicates that our scheme can support significantly more connections without introducing significant traffic loss.
Starting Page	27
Ending Page	42
Page Count	16
File Format	PDF
ISSN	10636692
DOI	10.1109/90.986511
Volume Number	10
Issue Number	1
Journal	IEEE/ACM Transactions on Networking (TON)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2002-02-01
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bufferless multiplexing Call admission control End-to-end QoS Multimedia traffic Regulated traffic Statistical QoS Statistical multiplexing Traffic smoothing
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Networks and Communications Software Computer Science Applications

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