Efficient Vertical Handoff Management in LTE Cellular Networks

Vertical handover based on the single criteria decision may cause inefficient handoff therefore multi-criteria handoff is gaining significance due to the enhancements brought by the mobility models in Fourth Generation (4G) technologies. Since the complexity and processing of multicriteria during handover is a complex job requiring high handover time leading to the high packet loss and even breaking of connection as well. Moreover, However, these enhancements are limited to specific scenarios and hence do not provide support for generic mobility. Similarly, various schemes are suffered from the high packet loss, frequent handovers, too early and late handovers, inappropriate network selection, etc. In order to rectify these issues, this paper proposed a Neuro-fuzzy based vertical handover decision model in order to improve QoS in heterogeneous wireless networks. An improved handover strategy will also be applied to make the connection alive . Handover decision is based on triggers which are generated from different layers using fuzzy logic. We will use RSS, network load, available and required bandwidth and jitter as handover decision parameters.