Network Selection Algorithm for Heterogeneous Wireless Networks: from Design to Implementation

Alexandros Kaloxylos, Ioannis Modeas, Fotos Georgiadis, Nikos Passas

Abstract


Heterogeneous networks allow mobile terminals to take advantage of complementary radio technologies for their concurrent connections. In this paper we propose a mechanism for automated radio access network selection with several novelties: It enables terminals to build prioritized lists of target access networks independently for each of their active connections. It aims to satisfy user preferences. Lastly, it operates with two decision-making points (mobile terminal and core network), splitting the complexity of the overall process. After discussing the functionality of the proposed mechanism, we present its formal specification in SDL. Finally, a test-bed implementation comprising two access networks is presented. It uses open source tools and it is based on Mobile IP, showing the feasibility of our proposal.

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DOI: http://dx.doi.org/10.5296/npa.v1i2.253

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