Policy Based Mobility &; Flow Management for IPv6 Heterogeneous Wireless Networks |
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Authors: | Chong Shen Wencai Du Robert Atkinson Kae Hsiang Kwong |
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Affiliation: | (1) Universitat Politecnica de Catalunya, Spain;(2) Universidad de Malaga, Spain;(3) University of Glamorgan, UK;(4) University of Cyprus, Cyprus |
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Abstract: | We propose a dynamic mobility management framework for Internet Protocol version 6 (IPv6) and policy enforcement enabled heterogenous
wireless networks. Policies and policy rules are defined depending on network infrastructure facilities, service agreements
and negotiation results. Each traffic is coupled with an identifiable traffic flow while the heterogenous interface flow bindings
are regulated by polices. The network selection, flow distribution, handovers and mobility procedures are flexible and we
propose to improve the decision making via Multiple Attributes Decision Making (MADM). Techniques considered in the framework
include the IPv6 based Network Mobility (NEMO), multihoming capability, transparent vertical handovers, horizontal handovers
and dynamic policy enforcement matching process to improve the Quality of Service (QoS), Quality of Experience (QoE) and ubiquitous
connectivity. A experiment testbed and simulation models have been constructed to verify the mobility framework performance
in a heterogeneous WiFi, WiMax and UMTS hybrid environment. |
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