Analysis of results in simulation and modeling of CDMA systems
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Citation:Kolahi, S.S. (2007). Analysis of results in simulation and modelling of CDMA systems. Proceedings of the 12th IEEE Symposium on Computers and Communications (ISCC'07). 679-684.
Permanent link to Research Bank record:http://hdl.handle.net/10652/3685
In this paper, using discrete event stochastic simulation by batch-means, new results have been obtained by analysing the sensitivity of CDMA blocking probability for a given traffic load against various number of calls per batch and confidence intervals. It is found that for the system under study one long simulation with one million call arrivals produce approximately 99% confidence in results while it needs 100,000 calls to achieve 95% confidence. For system under study and with 27 Erlang of traffic, the blocking probability is 0.0202 with 99% confidence and 0.0192 with 95% confidence. The impact of warm-up period on CDMA simulation is discussed. Situation with three tiers of neighbouring cells are considered when mobile compares three base stations and chooses the base station with the strongest signal.