Smart Predictive Trigger for Effective Handover in Wireless Networks

Roaming across heterogeneous wireless networks poses a challenging issue in mobility management such as seamless and efficient handover to reduce end-user´s service interruption. Efficient techniques for seamless handover between access points (APs) when user roams from one area to another can be categorized into three stages in conventional way, i) initiation, ii) preparation, and iii) execution. However, frequent handover may overload the network with signalling traffic and causes call dropping to increase as well. This paper takes a deeper look at predictive triggers at the link layer. With an appropriate implementation of predictive triggering algorithms, early handover initiation and preparation could be performed. This paper addresses the investigation on predictive and accurate mechanisms to generate a handover trigger.