For Intelligent Vehicle Highway Systems (IVHS) to be a reality, a communication system, which can provide reliable communication capability in mobile environment, is needed. A cellular system capable of supporting data traffic, can satisfy many of the IVHS communication requirements; such as traveller information and traffic management, public transit monitoring and control, fleet management, truck monitoring, hazard and collision warning. Cellular Digital Packet Data (CDPD) is a data transmission service, which coexists with current cellular systems in the same frequency band and is presently being deployed. In this paper, we briefly summarize the salient features of CDPD system and evaluate its data transmission capacity. We also study suitability of CDPD for IVHS applications. Our study suggests that CDPD is capable of satisfying many of the functional requirements of IVHS. Furthermore, a mature IVHS system (with 50 percent penetration) will need approximately 36.5 percent of the capacity of CDPD system, even when the cellular system with which CDPD coexists, operates at its 2 percent Erland Capacity. With lesser penetration of IVHS, even smaller percentage of CDPD capacity will be needed. In conclusion, CDPD seems to be a promising technology for IVHS and should be further explored.
CELLULAR DIGITAL PACKET DATA FOR INTELLIGENT VEHICLE HIGHWAY SYSTEMS
Journal of Intelligent Transportation Systems ; 2 , 4 ; 341-358
1995-01-01
18 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
CELLULAR DIGITAL PACKET DATA FOR INTELLIGENT VEHICLE HIGHWAY SYSTEMS
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