Call Admission Control and Dynamic Pricing in a GSM/GPRS Cellular Network
Citation:
Alan Olivré, 'Call Admission Control and Dynamic Pricing in a GSM/GPRS Cellular Network', [thesis], Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2004.Download Item:
TCD-CS-2005-16.pdf (PDF) 954.0Kb
Abstract:
In the past decade, the wireless communications market has experienced tremendous growth, and
this growth is likely to continue in the near future. In addition to an increase in the number of
users, ever more demanding applications will appear, resulting in ever greater resource
requirements. The limited radio frequency spectrum available can no longer support this
increasing demand, and the required quality of service will no longer be attainable if an efficient
solution is not found.
The easiest approach to solve this problem is to increase the capacity of the network, but this is
uneconomic and not really practical. Indeed, at their current size, the networks are already under
utilized most of the time, even if they can not accept every incoming call during congested peak
periods. Increasing their capacity still further may solve the congestion problem for a while, but
at the cost of an even higher global under utilization of resources. Other solutions have emerged
to alleviate this problem, but none of them is really effective when the degree of congestion
becomes too high.
An alternative solution is to keep the current network capacity and to make the users? demand fit
this limited capacity. This is the basic principle which leads to dynamic pricing: the price of
making a call depends on the network load, it can be very high when congestion occurs or very
low to encourage users to make calls during off-peak periods. As a result, the congestion is
decreased while the overall utilization of the communications channels is improved. Dynamic
pricing has already been applied successfully in several domains, but has only recently been
considered for use in cellular networks. This project aims to look at how the different solutions
mentioned above perform to solve the problem of congestion in the case of both GSM and
GSM/GPRS networks, and in particular, at whether or not a combination of dynamic pricing and
more traditional approaches can give better results. For this purpose, a detailed traffic model for
both GSM and GPRS networks is given and implemented in an event-driven simulator. The effect
of several dynamic pricing and admission control combinations is then analysed, and the
importance of some incoming traffic parameters is highlighted.
Author: Olivré, Alan
Advisor:
Huggard, MerielQualification name:
Master in Science (M.Sc.)Collections:
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