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Senior Project - RadiCal


Radio Interference Calculator

Senior Project: 2001-2002
Joel Crosswhite, Jill Kamienski, Kent Polkinghorne and Gregory Sizemore

In the rapidly evolving world of wireless communications, the reallocation of frequency bands to new services is often required. In some cases, government agencies are required to move services to a new band or to share a band with new services. When a large number of new users migrates to a band, a method to allocate new frequency assignments in an optimum manner is needed to evaluate feasibility, required spectrum, resulting interference, costs, etc.

The Institute for Telecommunication Sciences requested an automated program to calculate optimal frequencies for new transmitter stations. Initially the program will be applied to finding the best frequencies for use by differential GPS (DGPS) transmitters across North America. Because the DGPS frequencies lie in a band also used by aeronautical beacons, the program will account for existing beacons and find optimal frequency assignments that minimize interference for all users of the band.

The software determines a frequency to assign to a new transmitter placed into an area of existing transmitters. It takes input about the new transmitter, reads a database of existing transmitters, and uses that information to determine the optimal frequency to assign to the new transmitter. The project was developed using a combination of C and Fortran and runs in both Windows and UNIX environments.

Parameter Specification
Parameter Specification
Optimization Results
Optimization Results
See also:
Department of Computer Science
College of Engineering and Applied Science
University of Colorado Boulder
Boulder, CO 80309-0430 USA
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