• Mrs.R.M.Rajeshwati
• Dr.S.Rajesh

Vehicular Ad hoc Network (VANET), a subclass of mobile ad hoc networks (MANETs), is a promising approach for the intelligent transportation system (ITS).Vehicular Ad-hoc network is a fast mobile broadband wireless network, which can provide a variety security applications and business applications for vehicles such as traffic safety management, accident alarm, auxiliary driving, Internet information services. Even though VANETs are capable of enabling many novel applications, the design of effective inter vehicular communications remains as a challenge. The time varying vehicle density results in a rapid change in topology, which makes effective data transmission a difficult task. In this paper, we propose the Orthogonal Road connecting Model for Efficient Data Transmission Technique (EDTT) in vehicular adhoc networks, in which a Orthogonal road transmission model utilizes Geographic Information System and Google maps Information In this mechanism, the request-opath and confirm-opath are sent out to obtain the transmission path from a Source vehicle to a destination vehicle to improve the packet delivery ratio and average transmission delay of data. EDTT combines a dynamic multi-priority message queue management method with a greedy forwarding strategy based on position prediction to significantly reduce the end-to-end delay of packets We use NS2 to simulate EDTT and compare its GPRS,GPCR and AACAR performance with based on the packet delivery ratio, average transmission delay. The simulation results show that EDTT outperforms these previously proposed protocols

Greedy Forwarding Strategy,Octogonal Road Model,Roadlines, EDTT

"OCTOGONAL ROAD MODEL FOR EMERGENCY DATA TRANSMISSION IN VANET", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 9, page no.55-64, September-2018, Available :http://www.jetir.org/papers/JETIRA006331.pdf

"OCTOGONAL ROAD MODEL FOR EMERGENCY DATA TRANSMISSION IN VANET", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 9, page no. pp55-64, September-2018, Available at : http://www.jetir.org/papers/JETIRA006331.pdf