Handover Techniques in New Generation Wireless Networks

In the present age of telecommunication, the growth of wireless technologies and its integration with telecommunication standards have made wireless internetworking highly ubiquitous. With increasing diversity and dynamicity, performance of traditional wireless technologies degrades. To enhance performance, existing technologies need to be integrated. This has led to the evolution of new generation wireless networks (NGWNs). Mobility, seamless migration, end-to-end connectivity and QoS requirements demanded the need of handover amongst NGWNs. This paper presented a survey over basics of handover, its mechanism and behavioural pattern, classification and analysis of existing approaches, existing issues and factors affecting handoff performance.