Date Added: May 2012
With the proliferation of a multitude of diverse yet coexistent array of networks in the recent past, the heterogeneous environment is foreseen to serve Mobile Terminals (MT) in a complementary fashion at large. Multimodal MTs can now switch interfaces between Wireless Local Area Networks (WLAN) and the cellular network. In order to exploit the heterogeneity of the wireless environment, MTs require smart medium selection methods. In this paper, the authors derive a practical yet tractable method of evaluating Vertical Handover (VH) algorithms for mobile voice users over heterogeneous environments.