Modelling and planning fixed wireless networks |
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Authors: | Stephen Hurley Stuart Allen Desmond Ryan Richard Taplin |
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Affiliation: | (1) School of Computer Science, Cardiff University, 5 The Parade, Cardiff, CF24 3AA, UK;(2) Department of Computer Science, Sheffield University, Regent Court, 211 Portobello Street, Sheffield, S1 4DP, UK |
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Abstract: | Abstract This paper describes a mathematical model for the automated design of fixed wireless access networks (FWA) through the automatic
selection and configuration of base station sites. An optimisation algorithm is presented which generates the fixed wireless
access network infrastructure design, and results are presented to illustrate the use of the model and its implementation.
Economic measures based on the net present value (NPV) are defined to assess the financial viability of potential network
designs. The NPV is used within the mathematical optimization framework to produce cost-effective deployments that maximize
economic performance while maintaining technical constraints on the network. The model takes into account time-varying input
parameters on CapEx, OpEx, revenues and subscriber requirements to model the dynamic nature of the market. Technical radio
constraints taken into account include downlink area coverage, interference, capacity and availability. The model and optimisation
framework are illustrated by considering the deployment and configuration of infrastructure for three scenarios representing
urban, suburban and rural regions. Experiments illustrating the staged deployment of infrastructure over a number of time
periods are also presented. |
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