Landman, Jesse (2003) Modelling a DS-CDMA fading Channel with Bursty Traffic Arrivals, CS04-02-00, Department of Computer Science, University of Cape Town.
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Abstract
We propose an analytic model for the performance of a faded DSCDMA radio channel carrying bursty traffic. For the IP traffic model we propose a twostate Markov Modulated Poisson Process (MMPP) to model slow Poisson arrivals of packets interspersed by bursts of IP traffic with a much higher arrival rate. The channel model is a modified multistate GilbertElliot model which takes into account both the number of interfering users and whether the channel is in a faded or nonfaded state. We analyse both Ricean and Rayleigh distributions for the user signal. For the final result we relied on a discrete event simulation of the same DSCDMA radio channel data transmission process in order to parameterise the model. Results for metrics such as the slot success rate as a function of the number of interfering users and the packet throughput as a function of the IP traffic arrival rate are derived.
| Item Type: | Technical report |
|---|---|
| Subjects: | Computer systems organization > Architectures > Distributed architectures |
| Date Deposited: | 22 Apr 2004 |
| Last Modified: | 10 Oct 2019 15:36 |
| URI: | http://pubs.cs.uct.ac.za/id/eprint/112 |
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