FUTURE LAND-MOBILE COMMUNICATIONS

THERE IS A POTENTIAL DEMAND FOR 50 TO 100 TIMES AS MANY LAND-MOBILE FREQUENCIES AS ARE NOW AVAILABLE. COMPLETE SHARING OF FREQUENCIES AMONG USERS CAN PRESENTLY BE EXPECTED TO PRODUCE AN IMPROVEMENT ONLY BY A FACTOR OF 2. EVEN IF THE PRESENT UHF-TV FREQUENCIES WERE ASSIGNED TO LAND-MOBILE SERVICE, THIS WOULD NOT MEET THE POTENTIAL DEMAND. THE DEMAND MIGHT BE MET BY DEVELOPING SYSTEMS USING LAND-LINE SWITCHED NETWORKS WITH DISTRIBUTED FIXED TRANSCEIVERS TO MINIMIZE THE RADIATED POWER FOR THE MOBILE TRANSMITTER. THIS APPROACH HAS MANY OTHER BENEFITS SUCH AS REDUCED COST. STUDIES ARE NEEDED FOR THE DEVELOPMENT AND TEST OF SUCH A SYSTEM AS WELL AS THE VARIOUS FREQUENCY MANAGEMENT SCHEMES. /BPR/

• Corporate Authors:

  General Research Corporation

  Operations Analysis Division, Westgate Research Park
  McLean, VA  United States  22101
• Authors:
  • Eldridge, F R
• Publication Date: 1969-1

Subject/Index Terms

• TRT Terms: Communication systems; Driver information systems; Portable equipment; Radio; Television; Ultrahigh frequency
• Uncontrolled Terms: Mobile equipment
• Old TRIS Terms: Vehicular communications
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00225845
• Record Type: Publication
• Source Agency: Traffic Systems Reviews & Abstracts
• Report/Paper Numbers: Res Council Paper Rac-p-48
• Files: TRIS
• Created Date: Feb 2 1970 12:00AM