Centralized TDMA MAC for Advanced ITS Applications
Currently, the vehicular communications are used for advanced vehicle safety applications like cooperative intersection safety. These applications need high reliability and predictable delay in vehicular communications. The CSMA (Carrier Sense Multiple Access) mechanism is not suitable for advanced vehicle safety applications because the communication delay and communication failure rate increase exponentially with the number of communication devices. In addition, CSMA causes unfairness between users as the network load increase. In this paper, the authors propose the Centralized TDMA (Time Division Multiple Access) MAC (Medium Access Control) protocol which has a central controller assigning time slots for the reliability and fairness. In addition, the authors present the implementation by the software and show the test result of the average delay.
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Supplemental Notes:
- Abstract reprinted with permission from Intelligent Transportation Society of America.
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Corporate Authors:
1100 17th Street, NW, 12th Floor
Washington, DC United States 20036 -
Authors:
- Choi, Hyunkyun
- Kwak, Dongyong
- Cho, Hanbyeog
- Jang, Youn-Seon
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Conference:
- 19th ITS World Congress
- Location: Vienna , Austria
- Date: 2012-10-22 to 2012-10-26
- Publication Date: 2012
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; Photos; References; Tables;
- Pagination: 8p
- Monograph Title: 19th ITS World Congress, Vienna, Austria, 22 to 26 October 2012
Subject/Index Terms
- TRT Terms: Carrier sense multiple access; Intelligent transportation systems; Intersections; Mobile communication systems; Time division multiple access; Vehicle to infrastructure communications
- Uncontrolled Terms: Cooperative systems
- Subject Areas: Data and Information Technology; Highways; Vehicles and Equipment; I91: Vehicle Design and Safety;
Filing Info
- Accession Number: 01501922
- Record Type: Publication
- Files: TRIS
- Created Date: Dec 23 2013 7:53AM