Determining User Satisfaction in a Scenario with Heterogeneous Overlay Wireless Networks

E. Vanem, S. Svaet, and F. Paint (Norway)



Future mobile telecom systems will most probably consist of a set of different radio access networks. A typical scenario will consist of at least one network that covers wide geographical areas supplemented by so-called hot spots that provides higher bandwidth access in limited areas. Users in these hot spot areas he will frequently have to choose which wireless link to use according to his needs and the characteristics of the available wireless networks. Different handover algorithms will choose different wireless networks and correspond in a varying degree to the user’s needs. In other words, the user may be more or less satisfied depending on which handover algorithm is used. In this paper, a novel approach to evaluate the user satisfaction in such a scenario is described. The mobility models, the handover algorithms and the user satisfaction function presented serve as good illustrations of how to approach the problem of user satisfaction in overlay networks. Further study can develop these models more, incorporating other parameters and features, and thus get more detailed and realistic estimates of the user satisfaction using the same principles as outlined in this paper.

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