Abstract—The mobile node can experience disruptions of an ongoing real-time session due to handovers in voice over Internet Protocol (VoIP) services. The duration of such interruptions is called disruption time or handover delay and this is very annoying to user. Therefore, this delay needs to be minimized to provide good-quality VoIP services. In this paper, the focus is on the network layer mobility, specifically on mobile Internet Protocols (MIPs), since they are natural candidates for providing mobility at layer 3. Fast MIPv6 (FMIPv6), hierarchical MIPv6 (HMIPv6), Fast-Hierarchical mobile IPv6 (FHMIPv6) and Proxy mobile IPv6 (PMIPv6) have been evaluated analytically and compared their performances in terms of handover delay for VoIP services. Numerical results show that PMIPv6 has lowest handover latency.
Index Terms—Fast mobile IPv6 (FMIPv6), handover delay, hierarchical mobile IPv6 (HMIPv6), internet protocol (IP)-based wireless networks, voice over IP (VoIP), fast-hierarchical mobile IPv6 (FHMIPv6), and proxy mobile IPv6 (PMIPv6).
The authors are with the Electronics and Communication department, National Institute of Technology, Kurukshetra, Haryana 136119 India (e-mail: email@example.com, firstname.lastname@example.org).
Cite: N. P. Singh and Brahmjit Singh, "Proxy Mobile IPv6-Based Handovers for VoIP Services in Wireless Heterogeneous Networks," International Journal of Engineering and Technology vol. 4, no. 5, pp. 527-531, 2012.