Wireless Sensor network (WSN) plays an important role in applications like surveillance, agriculture monitoring, health monitoring, industrial automation etc. Large number of low cost sensor nodes are distributed that can communicate with each other. WSN MAC protocols can be classified in to Synchronous, Asynchronous, Multiple channels and Frame based [2].Our paper focuses on the latest progresses in Asynchronous MAC protocols
The Vehicular Ad-hoc Networks is one of the most challenging research areas in the field of Mobile Ad Hoc Networks. In the VANET most of the messages sent through broadcasting. In VANET connection between two nodes break due to the high mobility of vehicles. So the broadcasting of messages in vehicular ad-hoc network is still an open research challenge and requires some efforts to reach an optimum solution. In this paper, we addressed exactly this problem. We propose a flexible, simple, and scalable design for VANET and new protocol for broadcasting which broadcast the message in an efficient way and also reduce channel overhead, and make Better packet reception rate
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