Date Added: Sep 2010
Future Generation Wireless Networks (FGWN) consist of heterogeneous networks managed by different operators. In heterogeneous network the provision of continuous service for mobile nodes is a main issue for FGWN. Handoff process enables a Mobile Node (MN) to provide such a facility by transferring an active call from one Base Station (BS) to another BS. The Heterogeneous Wireless Networks (HWN) will support the vertical handoff mechanism. In this paper, the authors present an overview about the vertical handoff for heterogeneous wireless network and detail about Multiple Attribute Decision Making (MADM) based handoff decision to select a best network.