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In this paper, we present a solution of dynamic Ad-Hoc gateway to meet the urgent needs of interconnecting MANET to Internet. Comparing with the common fixed gateways, we integrate AODV with Mobile IP, eliminate the broadcast of Mobile IP by carrying the information in existing AODV messages so improve the performance remarkably. In this paper, we give the system's architecture design and its functional...
In this paper, we modify OLSR for MANET nodes to achieve full connection to Internet through multiple mobile gateways. We present a proactive mobile IP approach using Hello message and TC message to maintain the MANET nodes movement. The mobile gateway multiple metrics selection algorithm can select the best one among the active multiple mobile gateways. The simulation result shows that our approach...
Flow control scheme for VANET has not been sufficiently studied. In this paper, we consider the unique characteristics in VANET and propose our flow control scheme called flow control with packet living time prediction (FC-PLT). FC-PLT is based on OPET and mainly solves the interflow contention problem by assigning higher priorities to the packets with less packet living time (PLT) defined as the...
The paper presents three-layered key management architectures to MANET (Mobile Ad hoc networks) with three-layered virtual infrastructure. Two kinds of three-layered key management architectures are introduced. The communication efficiency of them has been analyzed. It also shows that the communication cost of the three-layered key management schemes is always smaller than that of the two-layered...
Secure route selection is always a challenge for distributed networks. The paper takes trust value as one of routing metrics for distributed networks to defense some attacks. The paper provides an algorithm to compute trust value and then gives a routing algorithm based on trust value. Trust value's computation takes remembering factor and credibility as main parameters. The final route is secure...
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