MAC protocol for inter-vehicle communication network using spread spectrum technique

Much research has been done for short range inter-vehicle communication systems and networks. The purpose of the systems has been to increase road traffic safety. Spread spectrum (SS) communication systems are able to communicate and range the distance between the terminals simultaneously. Thus it is advantageous to use the spread spectrum techniques for inter-vehicle communications. Considering the mobility of the terminals, the network need to be modeled as a number of terminals approaching each other randomly. So its operations and management should be done in a decentralized (i.e. base-station-less) manner. In this paper, medium access control (MAC) protocol for the inter-vehicle communication network using the spread spectrum technique is proposed, where a vehicle exchanges its data regularly with other surrounding vehicles. Computer simulations evaluates the basic performance of the protocol under highway conditions. It is shown that inter-vehicle communication can carried be smoothly carried out between one and surrounding vehicles in such environments