Wireless Spectral Sharing Techniques and Issues

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• Fletcher Wicker (The Aerospace Corporation / Cambridge)
• Wednesday 07 November 2007, 14:00-15:00
• MR12, CMS, Wilberforce Road, Cambridge, CB3 0WB.

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The demand for satellite communications has grown dramatically over the past decade. Currently there is very little unused radio frequency spectrum available for use in satellite communications. New satellite based applications such as high definition TV and high speed Internet access require greater bandwidths then are available. This presentation investigates the use of direct sequence spread spectrum techniques to share spectral bands that are currently allocated to ground-based narrow band users. The use of spread spectrum techniques theoretically should allow satellite communications to co-exist with narrow band users. However, additional measures to insure the operations are on a non-interference basis are required in the form of a “smart” radio. An analysis of the traffic generated by narrow band users is presented along with some unusual spectral phenomena.

This talk is part of the Optimization and Incentives Seminar series.

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