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Federal Communications Commission
445 12th St., SW
Washington, D.C. 20554
News media information 202 / 418-0500
TTY: 1-888-835-5322

DA 01-2072
Released: August 31, 2001

OET Tutorials On New Spectrally Efficient Techniques

The first tutorial on September 7, from 9:30 a.m. to 12:00 p.m., will cover adaptive antennas (so-called "smart antennas") and be presented by Dr. Marc Goldburg of ArrayComm, Inc. in the Commission meeting room. Adaptive antennas can provide significant link budget improvements and mitigate interference in communications systems. This, in turn, can lead to improved coverage, increased capacity, and other operational benefits. This technology can be used, for example, in cellular systems.

The tutorial will begin with an overview of the economics of spectral efficiency, and continue with a review of the relationships among spectral efficiency, coverage, network operating costs, and end-user costs for current and planned cellular systems. Basic principles of adaptive antennas will then be presented, which will include classes of adaptive antenna systems, fundamental signal processing gains, equipment architectures, and the primary performance determinants of adaptive antenna systems. The impacts of air interface design choices and service definition with adaptive antenna performance will be explored and illustrated with results from commercial deployments.

The second tutorial will be presented by Randall West of ComSpace Corp., and take place on September 7 from 1:30 to 3:00 in the Commission meeting room. Mr. West will discuss the technology enhancements that permit ComSpace Corporation's Digital Channel Multicarrier Architecture Technology to provide 8 independent communication paths on one 25 kHz channel. In particular, Mr. West will present the configuration, compression, modulation, range, and queuing efficiencies that are involved in this new, spectrally efficient technique.

For further information, contact Robert Kimball at 202-418-2339 or TTY 202-418-2989.