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In some sensor networks, the pre-distribution schemes are based on deployment knowledge. As a result, the performance of such a sensor network could remarkably decline when the deployment error of nodes is large. In this letter, a secure scheme based on layer model (SS-LM) is proposed. When the deployment error is large, analysis and simulation show that the SS-LM can provide higher local connectivity...
The data delivery in Vehicular Ad Hoc Networks (VANETs) depends on the mobility of the vehicles (e.g. with carry-and-forward). However, the mobility of the vehicles is not only affected by the nodes themselves, but also by some external means such as the traffic lights. The red light stops the vehicles at the intersection, which will increase the delivery delay of the messages carried by the vehicle...
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