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Enhancing inter-PMIPv6-domain for superior handover performance across IP-based wireless domain networks

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As a network-based localized mobility management protocol, Proxy Mobile IPv6 (PMIPv6) enables a Mobile Host (MH) to roam within a localized domain without MH intervention in the mobility-related signalling. However, the PMIPv6 maintains MH mobility support in a restriction domain. Therefore, whenever the MH roams away from the PMIPv6 domain, its reachability status will be broken-down causing high handover latency and inevitable traffic loss for its communication session. This article proposes a proactive mechanism to mange the MH handover and maintain its data session continually across inter-PMIPv6-domains. The proposed mechanism introduces an intermediate global mobility anchor entity, called, which is responsible to coordinate MH handover as well as redirect its traffic across inter-PMIPv6-domains. Through various simulation evaluations, via ns-2, several experiments were conducted, revealing numerous results that verify the proposed mechanism superior performance over the conventional inter-PMIPv6-domain handover schemes in terms of handover latency, achieved throughput, protocol signalling cost and end-to-end traffic delivery latency.

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  1. LGD is widely used as a handover trigger based on the link layer information. It provides an accurate handover prediction decision in order to begin the network layer handover before the link layer handover ends. This is done sooner a low signal strength indicator is received according to the pre-defined threshold with respect to the MH’s velocity, distance and handover preparation time.


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The authors would like to acknowledge the Ministry of Higher Education of Malaysia for the partial financial support under the Fundamental Research Grant FRGS/1/11/SG/UPM/01/1.

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Correspondence to Ibrahim Al-Surmi.

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Al-Surmi, I., Othman, M., Abdul Hamid, N.A.W. et al. Enhancing inter-PMIPv6-domain for superior handover performance across IP-based wireless domain networks. Wireless Netw 19, 1317–1336 (2013).

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