Survey of Broadcasting Protocols for Next Relay Selection in VANETs

K. Lakshmi, Dr. M. Soranamageswari

Abstract: The Vehicular Adhoc Network (VANET) proves its efficiency in reliability and transmission of life safety messages to its neighbours during emergency situations. There are many protocols are available in broadcasting of alert messages. These protocols are categorized based on the techniques used for the communication namely beacon, handshake or instant broadcasting. Then these protocols are again subdivided into different criteria in making selection of next relay node in alerting appropriate neighbours. The relay node takes the responsibility to disseminate the safety message to the upper level within the transmission range. In this paper, we provide researchers with a clear suggestion of the benefits and drawbacks relate with each scheme.

Keywords: Protocols, Multi - hop, Relay, Regime, Rebroadcast