Providing wireless bandwidth for high-speed rail operations : final report.
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2016-07-01
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Subject/TRT Terms:
- Bandwidth
- Case studies
- Frequency (Electromagnetism)
- High speed rail
- Wireless communication systems Positive train control
- high-speed trains
- bandwidth allocation and management
- cell planning for high-speed trains
- Coast Starlight (Train)
- Global System for Mobile Communications-Railways
- Southern California Regional Rail Authority
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Edition:Final report
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Abstract:This project examined the possibility of providing wireless communication for train control systems on American high-speed trains. In this ; study, the key issue is that the frequencies allocated for rail operations in the U.S. and the frequencies used by GSM-R in other parts of the world ; have different capabilities. In Europe, GSM-R is transmitted over frequencies ranging from 800 MHz to 900 MHz. The U.S. has less bandwidth ; available with a lower frequency spectrum. This project was carried out in two phases: 1) A frequency analysis was done to see how the ; available frequency band should be divided to support train operations. For varying bit rates, modulation schemes and number of packets per ; handshake, models were developed to calculate the number of trains that a WIU can handle and the maximum speed the train can operate at, and ; 2) A detailed link budget analysis was used to calculate the received power level. Given that high-speed lines are currently not available, the ; project used SCRRA lines in Southern California and the Coast Starlight light rail line as case studies for the analysis. The locations of WIUs, ; points along the train line, and the terrain features were determined using existing maps; all of which were applied to calculate estimates of ; receive power for the train’s communications.
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Main Document Checksum:urn:sha-512:91ff0317d64580f19b178f7266b4ba11bb8bcf319c6bc2912b47e8cad2045861f0525def49ef0ad86ccf3314b4d56b384642d70f40a848453765d7f82bf682ec