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FPGA-Based Sensing Algorithm Development Using Simulink and Third-Party Tools to Support Dynamic Spectrum Management

Alpaslan Demir, InterDigital

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FPGA-Based Sensing Algorithm Development Using Simulink and Third-Party Tools to Support Dynamic Spectrum Management

An increasing demand for high-throughput data services, network connectivity and mobility, and reliability is driving network operators to focus on developing wireless networks to provide a richer multimedia experience and new mobile broadband capabilities to serve billions of consumers globally. Using a holistic approach to meeting this demand, InterDigital is focused on three comprehensive areas of bandwidth innovations: spectrum optimization, cross-network connectivity and mobility, and intelligent data delivery techniques. As part of our efforts in spectrum optimization, we have been working on the development, simulation, and prototyping of architecture and algorithms with respect to the intelligent and efficient management of wireless spectrum commonly referred to as Dynamic Spectrum Management (DSM).

Since the environmental knowledge is essential to an intelligent DSM mechanism, the required information necessary to optimize spectrum utilization can be gathered from a global geo-location database that contains spectral information about the given location or through intelligent sensing techniques that gather sensing measurements from one or more nodes within the local area of the network. With the help of Simulink, InterDigital has developed sensing techniques that adhere to FCC requirements for operation of wireless devices in spectrum designated as TV White Space. InterDigital not only has used the tool to verify expected algorithm performance but was also able to generate code targeted to FPGA platforms based on the Xilinx® toolbox. This presentation describes the processes and methods used to develop both energy and feature-based sensing algorithms and also briefly describes the actual performance results gathered during the development of the MWC 2011 DSM prototype.