A New Vehicle Network Routing Technology Based on Power Control

The dynamic setting of the node´s power value is not involved in the traditional VANET protocol. Thus, the node energy could not be effectively saved, and the channel interference between nodes is likely to be caused. This paper proposes a new vehicle network routing technology based on power control--- PAODV, PAODV mainly uses the power control on link layer, and it is realized through MAC protocol. The transmission power is dynamically adjusted according to the conditions such as the distance to the node of the next hop and channel status. After using PAODV, node´s energy consumption is lowered and channel interference between different nodes is reduced. This further ensures the reliability of the routing algorithm. We compare the performance of PAODV and AODV using network simulator NS-2 with the actual node movement model. The simulation results show that this algorithm can significantly reduce nodes´ energy consumption.