Application of Cognitive Radio in VANET

Application of Cognitive Radio in VANET

Komathy K.
ISBN13: 9781466642218|ISBN10: 1466642211|EISBN13: 9781466642225
DOI: 10.4018/978-1-4666-4221-8.ch015
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MLA

K., Komathy. "Application of Cognitive Radio in VANET." Cognitive Radio Technology Applications for Wireless and Mobile Ad Hoc Networks, edited by Natarajan Meghanathan and Yenumula B. Reddy, IGI Global, 2013, pp. 289-314. https://doi.org/10.4018/978-1-4666-4221-8.ch015

APA

K., K. (2013). Application of Cognitive Radio in VANET. In N. Meghanathan & Y. Reddy (Eds.), Cognitive Radio Technology Applications for Wireless and Mobile Ad Hoc Networks (pp. 289-314). IGI Global. https://doi.org/10.4018/978-1-4666-4221-8.ch015

Chicago

K., Komathy. "Application of Cognitive Radio in VANET." In Cognitive Radio Technology Applications for Wireless and Mobile Ad Hoc Networks, edited by Natarajan Meghanathan and Yenumula B. Reddy, 289-314. Hershey, PA: IGI Global, 2013. https://doi.org/10.4018/978-1-4666-4221-8.ch015

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Abstract

Vehicular Ad Hoc Networks (VANET) is an emerging application of Intelligent Transport System, which is mainly to assist public safety applications such as collision avoidance between the vehicles or between vehicles and other obstacles such as pedestrians. At the same time, it challenges the data communication because of its high mobility, short link lifetime, and frequent network fragmentations. Existing spectrum standard for vehicular communication underutilizes the frequency bands in the sparsely used regions when the licensed users are not deploying them even at the peak hours of the road. Congestion or route stalling is unavoidable in vehicular networking and this builds an impression that there is always a shortage of spectrum. A solution would be to have a cognitive radio that can utilize the spectrum that is not heavily used so as to ease congestion in other areas. This chapter brings out the application of cognitive radios in vehicular environments, a new and relatively less explored area of research. This chapter looks into a few existing studies in the literature which have focused on spectrum sensing techniques, routing methodology, and security for cognitive radio vehicular networks. In addition, this chapter also discusses the impact of changes in the vehicular network on the radio propagation channel and in turn on the operation and performance of the cognitive radio vehicular network. Finally, future directions in research have highlighted the existing challenges in specific areas.

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