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Handover Optimization in Heterogeneous Wireless Networks : PMIPv 6 vs . PMIPv 6 with MIH

Next Generation wireless networks are expected to integrate and coordinate heterogeneous communication networks to enable network access ubiquity. Unfortunately, this integration of different networks results in performance degradation when handovers occur among the networks during a mobility event. Thus, there is a requirement for effective mobility management protocols to support ubiquitous network access by providing seamless handover. This paper examines the handover performance of Proxy Mobile IPv6 mobility management protocol when used with and without the IEEE 802.21 Media Independent Handover services in a heterogeneous wireless networks’ environment. Our experimental analysis shows that Proxy Mobile IPv6 is an effective mobility management protocol for next generation wireless networks in terms of improving the handover performance metrics such as handover latency and packet loss particularly when used with the IEEE 802.21 MIH services in localized domain mobility scenarios.