| Title: | REAL TIME SERVICES OVER THE INTERNET |
| DOI No: | 10.1142/9781860948534_0014 |
| Source: | INNOVATIVE APPLICATIONS OF INFORMATION TECHNOLOGY FOR THE DEVELOPING WORLD (pp 86-91)
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| Author(s): | A. J. SIMMONDS
Faculty of IT, University of Technology Sydney, PO Box 123, Broadway, NSW 2007, Australia
G. MERCANKOSK
Western Australian Telecommunications Research Institute, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
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| Abstract: | Real time Internet traffic such as Voice over IP (VoIP) is difficult to estimate and simulate. Since the process is non-ergodic we must use ensemble averages rather than time averages, and for combinations of sources the simulation time can be excessive. We give some analytical results for Constant Bit Rate (CBR) traffic for the n*D/D/I queue, and for a CBR queue with varying source rates we present an expression for the Interval of Significance (IoS). This is the minimum number of time slots necessary to simulate the traffic, important because of the considerable computation time often involved in simulating this queue. Our results help in dimensioning networks for CBR services. |
| Keywords: | CBR; VoIP; queuing; teletraffic; traffic; ensemble; dimensioning
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| Full Text: | View full text in PDF format (302KB) |
| TOC: | Back to Table of Contents |
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