August 1988 | NTIA Technical Report TR-88-236

The SUM Data Base: A New Measure of Spectrum Use

Robert J. Mayher; Robin H. Haines; Steven E. Litts; Leslie A. Berry; Gerald F. Hurt; Carl A. Winkler

Abstract: This report describes a new technique for calculating the spectrum space used by existing frequency assignments. The Spectrum Use Measure (SUM) model determines the amount of spectrum used at a given location or the probability that a given location is unavailable for a new assignment. These quantities, stored in a SUM data base, can be used to produce maps, histograms and indices of spectrum use. The SUM technique has been effectively applied to the 1710–1850 MHz and the 7750–7900 MHz bands. The report concludes that the SUM technique is an effective indicator of spectrum use and recommends that it should be used when evaluating service bands.

Keywords: interference; spectrum efficiency; frequency assignment; Spectrum Use Measure (SUM); Spectrum Use Bandwidth (SUB); Spectrum-Area Use Product (SAUP); Spectrum-Area Use Index (SAUl); Spectrum Use Factor (SUF); Spectrum Use Index (SUI); Technical Spectrum Efficiency Factor (TSEF); spectrum usage; radio frequency spectrum

To request a reprint of this report, contact:

Ed Drocella, Chief,
Spectrum Engineering and Analysis Division
Office of Spectrum Management
National Telecommunications and Information Administration
(202) 482-1652

Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

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