PERFORMANCE EVALUATION OF 10BASE-T AND 100BASE-T ETHERNETS CARRYING MULTIMEDIA TRAFFIC

Citation
Fa. Tobagi et I. Dalgic, PERFORMANCE EVALUATION OF 10BASE-T AND 100BASE-T ETHERNETS CARRYING MULTIMEDIA TRAFFIC, IEEE journal on selected areas in communications, 14(7), 1996, pp. 1436-1454
Citations number
19
Categorie Soggetti
Telecommunications,"Engineering, Eletrical & Electronic
ISSN journal
07338716
Volume
14
Issue
7
Year of publication
1996
Pages
1436 - 1454
Database
ISI
SICI code
0733-8716(1996)14:7<1436:PEO1A1>2.0.ZU;2-A
Abstract
In this paper, the performance of 10Base-T and 100Base-T Ethernet segm ents carrying audio/video traffic is presented, End-to-end delay requi rements suitable for a wide range of multimedia applications are consi dered (ranging from 20-500 ms), Given the specific nature of the netwo rk considered and the maximum latency requirement, some data is lost, Data loss at the receiver causes quality degradations in the displayed video in the form of discontinuities, referred to as glitches, We def ine various quantities characterizing the glitches, namely, the total amount of information lost in glitches, their duration, and the rate a t which glitches occur, We study these quantities for various network and traffic scenarios, using a computer simulation model driven by rea l video traffic generated by encoding video sequences, We also determi ne the maximum number of video streams that can be supported for given maximum delay requirement and glitch rate, We consider various types of video contents (video conferencing, motion pictures, commercials), two encoding schemes (H.261 and MPEG-1), and two encoder control schem es [constant bit rate (CBR) and constant-quality variable bit rate (CQ -VBR)] and compare their results, Furthermore, we consider scenarios w ith mixtures of video and data traffic (with various degrees of bursti ness), and determine the effect of one traffic type over the other.