CTM-based evaluation for heterogeneous wireless network selection strategy

In this paper, an analytical framework has been proposed for performance evaluation of heterogeneous wireless network selection strategy. Its analyzability is herein derived from the basis of a well established macroscopic model, called Cell Transmission Model (CTM). With this approach, traffic sources have been modelled as deterministic fluid flow of moving users travelling on their vehicles along a road. In contrast to the approaches with microsopic user mobility model often used in the past, user individuality has been well hidden by the proposed framework. The proposed framework has consequently its inherent advantage of computability. Therefore, it is well suited for further extension towards the adaptive optimisation of heterogeneous wireless network selection strategies. In this regard, numerical results have been given on a simple 1-dimensional road network settings with choices of moving users in making their connections via micro and macro cells in both direct and ad hoc modes.