Some applications of wireless communications in Intelligent Vehicle Highway Systems

Intelligent Vehicle Highway Systems (IVHS) have generated a new challenge for communications industries. This is particularly true for mobile communications, since most essential IVHS communications links require wireless and mobile transmission. The IVHS and its major components are described. A generic block diagram for an IVHS network is presented. This block diagram defines the communications requirements for the IVHS network. The complete characterization of communication between the vehicle and the IVHS infrastructure is determined by the system architecture, however, by its very nature, this link is required to be wireless, mobile, and for the most part interactive. A survey of wireless technologies that have been tested, or implemented, and/or considered suitable for IVHS applications are discussed. Examples of operational and/or under development IVHS projects that applies the corresponding wireless technology are also provided