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A network topology method is based on clustering and network tomography technology is described. By using the end-to-end measurement, according to the dissimilarity of measurement data of different end nodes, the logical network topology is speculated. Based on NS2 simulation results, the method has higher accuracy, even in the case of larger link delay.
Vehicular ad hoc networks (VANETs) applied to specific scenarios are kinds of opportunistic networks. Introducing currently opportunistic routing protocols and actual VANETs characteristics, the paper proposed an opportunistic routing protocol based on the comprehensive utilities of forwarding nodes. The protocol conducted a dimensionless method to deal with these factors including the distance between...
A seamless handover scheme with low latency and low packet loss is important to performance of mobile IPv6. To some extent, the fast handover scheme for hierarchical mobile IPv6 (F-HMIPv6) reduce the delay of fast handover procedure. However, in practice the handover delay is still very high for time-sensitive services. an improved scheme for the F-HMIPv6 is proposed in this paper, which helps to...
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