An energy persistent Range-dependent Regulated Transmission Communication model for vehicular network applications

Abstract Multi Point Relays (MPRs) are engaged for supporting road-side communication by sharing traffic information, road conditions and additional notifications. Vehicular Networks (VNs) gather round information from these relay points for ease of information access and monitoring purpose. Managing the operation hours of relay sensors becomes vital as they cannot be frequently recharged but has to meet the vehicle requirements over a protracted time. MPR is a tiny sensor mote with built-in power source that is placed along the roadways for the allotment of useful information. The operation hours of the sensors depends on its battery power for which maintenance is important. To assurance uninterrupted communication and information sharing from MPR sensors, we propose a Range-dependent Regulated Transmission (RRT) with doze formulation. In a RRT, the assortment and power of the sensor nodes are modifiable with respect to vehicular density and type of information. The type of information is pre-informed by the nearest Road-Side Unit (RSU) from which the transmit power level of the MPR is decided. Similarly, the MPRs remain in sleep state when vehicle density is nil. The MPRs switch to operation state when it listens to a Vehicle Request (VR) packet from withers RSU or On-Board unit (OBU). RRT with doze formulation improves the communication time and rate of the road side relay units but adjusting the communication factors with respect to the vehicle requirements.