Researchers at Trinity College Dublin have developed a software radio system for maximum application flexibility
and minimal RF hardware. FlexRad is presented as a software radio toolkit and development system for wired and wireless communications products. A FlexRad system can be completely changed in software unlike a conventional transceiver where the application is fixed in hardware or has a limited ability to be changed after deployment.
One concrete example of this toolkit being used in the real world: a dynamic spectrum access system was built using FlexRad that automatically detects and avoids interference to maintain a robust communications link at all times. This is a product that is tailored for robust and cost effective wireless links and connectivity. The solution uses clever detection and self-adaptation techniques and otherwise unused frequency spectrum segments or ‘white space’ in the UHF band to achieve blanket coverage and maximum building penetration across a target area.

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