EXPERIMENT OF THE RADIO COMMUNICATION SYSTEM FOR INTELLIGENT TRANSPORT SYSTEMS

The research and development with respect to the Intelligent Transport Systems (ITS) is actively underway with the aim of minimizing traffic problems, such as congestion and accidents. Information and communication technologies used for road traffic control are brought into play here. When the road side unit (RSU) and the on-board equipment (OBE) are several tens of meters apart from each other, radio communication between them is adversely affected by fading resulting from radio wave reflection, diffraction, or scattering in the presence of ground or vehicle surfaces. In fading the field strength and phase of received signal change with time, retarding the desirable trend toward highly reliable and quick communication. Two algorithms have been developed which allow the OBE to temporarily hold communication in the area where the field strength loses stability due to fading and then resume it when this strength becomes stable. The development has been enabled by incorporating a function that monitors received power level in the OBE. This paper describes the OBE system and typical communication implemented. For the covering abstract see IRRD E102946.

• Availability:
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• Corporate Authors:

  ORGANIZING COMMITTEE 5TH WORLD CONGRESS

  KUSANG BLDG, 4TH FLOOR, 1009-5, DAECHI-DONG KANGNAM-KU
  SEOUL, ZZ KOREA    135-283
• Authors:
  • HARASHIMA, E
• Conference:
  • TOWARDS THE NEW HORIZON TOGETHER. PROCEEDINGS OF THE 5TH WORLD CONGRESS ON INTELLIGENT TRANSPORT SYSTEMS, HELD 12-16 OCTOBER 1998, SEOUL, KOREA. PAPER NO. 3047
• Publication Date: 1998

Language

• English

Subject/Index Terms

• TRT Terms: Calculation; Communications; Intelligent transportation systems; Methodology; Radio; Traffic control
• ITRD Terms: 6464: Calculation; 8531: Case study; 9098: Communication; 9102: Method; 6947: Radio; 654: Traffic control
• Subject Areas: Operations and Traffic Management;

Filing Info

• Accession Number: 00781165
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 89-950073-2-X
• Files: ITRD
• Created Date: Jan 7 2000 12:00AM