QoS-guaranteed IP mobility management for fast-moving vehicles with multiple network interfaces

QoS-guaranteed IP mobility management for fast-moving vehicles with multiple network interfaces

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In this study, the authors present a quality-of-service (QoS)-guaranteed IP mobility management scheme for fast-moving vehicles with multiple wireless network interfaces. The idea of the proposed mechanism consists of two things. One is that new wireless connections are established to available wireless channels whenever the measured data rate at the mobile node drops below to the required data rate of the user requirement. The other is that parallel distribution packet tunnels between an access router and the mobile node are dynamically constructed using multiple wireless network interfaces in order to guarantee the required data rate during the mobile node's movement. By doing these methods, the required data rate of the mobile node can be preserved while eliminating the possible delay and packet loss during handover operation, thus resulting in the guaranteed QoS. The architecture of the Internet engineering task force standard hierarachical mobile IPv6 (HMIPv6) has been extended to realise the proposed scheme, and detailed algorithms for the extension of HMIPv6 has been designed. Finally, simulation has been done for performance evaluation, and the simulation results show that the proposed mechanism demonstrates guaranteed QoS during the handover with regard to the handover delay, packet loss and throughput.


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