Improvement of Metroliner Telephone Channel Capacity and Modeling of Telephone Channel Demands

Details

• Creators:
  Chin, G. ; Eaves, R. ; Kodis, Ralph D. ; Yoh, P.
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.)
• Corporate Contributors:
  United States. Department of Transportation. Federal Railroad Administration
• Subject/TRT Terms:
  • Mathematical models
  • Mobile telephones
  • Railroad trains
  • Waiting time
  • Communication systems
  • Railroads
  • Communication systems
• Publication/ Report Number:
  DOT-TSC-FRA-72-02
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Technical report; Dec. 1971-Mar.1972
• Corporate Publisher:
  United States. Department of Transportation. Federal Railroad Administration
• Abstract:
  The channel capacity of the present Metroliner telephone system is analyzed and methods are proposed to increase that capacity without increasing the overall bandwidth. To determine the number of channels required, calculations have been carried out using two available mathematical models: the Erlang Model and the Waiting Model. Three criteria have been used: (1) the probability that no channel is available; (2) the mean waiting time; and (3) the probability of having to wait at least t minutes.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/11060/dot_11060_DS1.pdf
• File Type:
  [PDF - 1.43 MB]
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha256:7aa906a201f570e6cb855a3904a4a7a51a76cc95ad5a012a2d456c0f31278ee4