Optimal Route Selection for Autonomous Vehicle Public Transportation System

Wireless Sensor Networks in VANETs and how they have to exchange the traffic information among vehicles in order to achieve seamless service extensions due to unpredictable requests and broadcast chains in the network. To function this there are two possible approaches the push model and other is pull model. The goal of the data push communication model is to exchange information about the position and speed of the vehicle among a set of moving vehicles in order to enable each individual vehicle to view and assess traffic conditions in front of it. When the other vehicles obtain the broadcast message it stores the message and instantly rebroadcast the message. This approach is useful for the applications which are delay sensitive. However, the main problems arise in this approach is network congestion. When a large number of the vehicles enter in to the network they transmit its message and a number of the broad cast message flooded in the network. Several techniques to avoid the broadcast problem have been proposed. Timer based, geographic forwarding, opportunistic forwarding are the examples. Keywords— VANET, Flooding, Broadcasting, network