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We investigate the local connectivity of cognitive radio ad hoc networks (CRAHNs), i.e., node degree and probability of node isolation. The local connectivity of CRAHNs depends on not only its own network parameters but also the primary networks. To analyze the local connectivity, we use stochastic geometry and probability theory to derive the distribution of node degree, probability of available...
There are many environmental factors taking effects on the communication performance of routing protocols.However, in high-density urban areas, one of the important factors is vehicle-node density. This paper proposes the vehicle- node density parameter to improve the performance of AODV routing protocol and OLSR routing protocol under two typical mobile models in VANET. The performance of routing...
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