Paper Info
Title
Cell loss ratio and multiplexing gain of an ATM multiplexer for VBR voice sources
Abstract
Asynchronous transfer mode (ATM) is designed to support various traffic classes. It is necessary to select a proper traffic class to support a specific application. Voice traffic in its inherent nature is time-sensitive and variable. Therefore, it is natural to consider voice as real-time VBR traffic. Human speech has a voice activity factor of about 42% on an average, which makes it possible to multiplex a lot of voice sources together. The study of cell loss is of great importance to the design of an ATM multiplexer whose input consists of voice sources. With a maximum delay allowed in the network, it is the behavior of cell loss, rather than the variation of network delay, that determines the quality of reconstructed voice at receivers. This paper analyzes the cell loss performance and multiplexing gain of an ATM multiplexer loaded with VBR voice sources, where multiple voice streams, utilizing compression and silence detection, are multiplexed into a fixed bandwidth circuit such as T1 or T3 ATU trunk. This paper shows that the cell loss ratio and multiplexing gain depend on the voice activity factor, the mean talk spurt length, the mean silence period, the link capacity, the compression ratio, and the buffer size of the ATM multiplexer
Year
DOI
Venue
1998
10.1109/LCN.1998.727679
LCN
Keywords
Field
DocType
voice activity factor,voice traffic,delay,compression ratio,reconstructed voice,vbr voice sources,compression,multiple voice stream,human speech,mean silence period,mean talk spurt length,multiplexing gain,atm multiplexer,cell loss,silence detection,asynchronous transfer mode,buffer size,traffic classes,vbr voice source,voice communication,voice sources,voice source,t3 atm trunk,link capacity,fixed bandwidth circuit,cell loss ratio,multiplexing,reactive power,bandwidth,network delay,real time,circuits
Network delay,Voice activity detection,Computer science,Computer network,Asynchronous Transfer Mode,Bandwidth (signal processing),Compression ratio,Multiplexing,Atmosphere (unit),Variable bitrate
Conference
ISSN
ISBN
Citations 
0742-1303
0-8186-8810-6
5
PageRank 
References 
Authors
0.99
6
2
Name
Order
Citations
PageRank
Seong-Ho Jeong16214.68
John A. Copeland245660.84