Avoiding Traffic Congestion Using Position based and Cognitive Radio in VANET
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Publication date: 2019-11-23
Eurasian J Anal Chem 2017;12(4):265–273
Inter-Vehicle Communication System (IVCS) built in a city environment faces greater challenges because of uneven distribution of vehicular nodes, mobility constrained, and difficult signal reception due to radio obstacles such as high rise buildings. This paper proposes a new position-based routing scheme designed specifically for IVCS in a city environment and for the roadside equipment using a Cognitive Radio to allocate a multiple channel for communicating between vehicles and infrastructure to provide a safety messaging to handle emergency situation. Currently VANET is implemented using ETT and ETX system which uses Waited Corrective (WC ETT) mechanism. The delay incurred in this system is improved here by making use of Cognitive Radio which allocates multiple channels simultaneously. This paper also proposes to use A-star Algorithm for inter-vehicle communication which supports dynamic status updates on neighbors, sink and their energy levels so as to extended WSN lifetime.