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In traditional Train-Ground Communication (TGC), the mobile node or the mobile network is responsible to handover from one domain to another, although the designer has the route of the trains. A novel scheme on the seamless handover on vehicle is proposed in this paper. The main idea is that the channel would be controlled to adapt the mobile train instead of changing the channel or connection according to the prepared route between the mobile node and the network on the ground. The simulated results show the feasibility of the novel scheme.

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Abstract. Static assignment of ip addresses or identifiers can be exploited by an adversary to attack a network. However, existing dynamic ip address assignment approaches suffer from two limitations, namely: participation of terminals in the assignment and inadequate network server management. Thus, in this paper, we propose an overall-transparent dynamic identifier-mapping mechanism to manage the identifier of network nodes to defend against scanning in the smart identifier network. We establish the selection and allocation constraints. The non-repetition probability and cover cycle allow us to evaluate the defense efficiency against scanning. Simulation results and theoretical analysis show that the proposed method effectively reduces the detection probability of routing identifiers.

The article's central objective is to solve the mobility problem in wireless communications. In the service acquiring process of mobile terminals, wireless communications are asking more requirements for mobile handover. This paper proposes a Cross-layer Scheme based on Integrated Mobility Management (CSIMM) to reduce the handover latency and provide the high transmission performance. The main idea is to realize the uniform authentication and trigger the association of MAC layer and IP layer at the same time by incorporating the Control And Provisioning of Wireless Access Points and Proxy Mobile Internet Protocol version 6. A mathematical model is developed as well. The performance results show that our scheme is superior to those existing interdomain handover methods in the term of the access and handover latency.