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Vehicular ad hoc networks offer safety and travel efficiency by sharing information between vehicles and roadside units. The performance of current proposed standard can suffer when there is a large amount of spectral congestion. Spectral congestion can result when there is high vehicle density such as traffic jams. In this paper, we propose a cognitive radio system to spatially and temporally add additional channels to VANETs. This additional spectrum can increase the throughput and decrease the probability of packet collisions.
Intelligent Vehicles Symposium (IV), 2011 IEEE
Date of Conference: 5-9 June 2011