Title :
A high performance point-to-point modem for the ITS 220 MHz spectral allocation
Author :
Fitz, M.P. ; Roos, M.J. ; Grimm, J. ; Krogmeier, J.V.
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
Five narrowband frequency pairs in the 220-222 MHz land mobile band have been allocated for applications in intelligent transportation systems (ITS). Low rate data communications in the range of 4 to 30 kbps can be supported on these 4 kHz channels. This paper is the result of an ongoing project to design, construct, and field test a high performance wireless modem architecture for application in the ITS spectrum allocation. Here we concentrate on an architecture optimized for stationary point-to-point applications. Field testing of this modem architecture has demonstrated that bandwidth efficiencies in excess of 5 bps/Hz are achievable at bit error probabilities of around 10-5 . The experimental system which has been built serves as an effective testbed for further advances in narrowband wireless communications and for ITS application development
Keywords :
automated highways; land mobile radio; modems; radio data systems; radio links; 220 to 222 MHz; 4 kHz; 4 to 30 bit/s; ITS 220 MHz spectral allocation; ITS spectrum allocation; high-performance point-to-point modem; intelligent transportation systems; land mobile band; low-rate data communications; narrowband frequency pairs; stationary point-to-point applications; wireless modem architecture; Bandwidth; Data communication; Intelligent transportation systems; Modems; Modulation coding; Narrowband; Radio spectrum management; Road transportation; System testing; Wireless communication;
Conference_Titel :
Intelligent Transportation System, 1997. ITSC '97., IEEE Conference on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-4269-0
DOI :
10.1109/ITSC.1997.660537
