Title
Protecting video service quality in multimedia access networks through PCN Protecting video service quality in multimedia access networks through PCN
Author
Faculty/Department
Faculty of Sciences. Mathematics and Computer Science
Publication type
article
Publication
New York, N.Y. :IEEE ,
Subject
Mass communications
Source (journal)
IEEE communications magazine / Institute of Electrical and Electronics Engineers [New York, N.Y.] - New York, N.Y.
Volume/pages
49(2011) :12 , p. 94-101
ISSN
0163-6804
ISI
000297809100011
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
The growing popularity of video-based services and their corresponding unpredictable bursty behavior makes the design of an admission control system an important research challenge. The pre-congestion notification (PCN) mechanism is a measurement-based approach, recently standardized by the IETF, optimized toward the admission of inelastic flows, where the number of flows is sufficiently large that individual bursts of flows can be compensated by silence periods of others. In this article, we discuss the implications of applying PCN to protect video services, which have less predictable behavior. Several algorithms for protecting video services in multimedia access networks are described. Through performance evaluation, we show the impact of these algorithms on the network utilization and video quality, and present guidelines on how to configure a PCN system.
E-info
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