Periodic Safety Message Broadcasting in VANETs Using Recursive Algorithm

Faster and more reliable connection establishment is the primary purpose of periodic safety broadcasting in VANETs. For this purpose we propose a sublayer in the application layer to increase the reliability of safety applications. Our proposed method uses several rebroadcasting schemes safety messages, which considerably improves the overall reliability. It also handles the synchronized collision problem as well as congestion problem and vehicle-to-vehicle channel loss. We propose a zone based algorithm to increase reliability of safety messages. We also use a Recursive Algorithm to give priority for the safety message being generated. We use wi-fi protocol instead of dsrc protocol in order to improve the reliability. Based on this model, a upper bound for the network coding algorithm is derived. Using the results based on analysis and ns-2 simulations we conclude that our method overcomes the previous problems.