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Spectral Efficiency

ANDRO HomeTechnologiesCommunication SystemsSpectral Efficiency

Towards Maximal Spectral-Efficiency Networking

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Military communications networks are faced with congested spectrum in hostile environments.  We are implementing new code-based spectrally efficient signature sets than enable improved use of limited wireless spectrum by allowing multiple transmitters to send data simultaneously at the same frequency. Unique signature codes are used differentiate between transmitters. Our goal is to improve spectral density,  minimize effect of interference, and maintain quality of experience based on throughput, lag, and minimizing errors. ANDRO is implementing novel algorithms developed by University of Buffalo (UB) on a universal radio serial peripheral (USRP) software defined radios (SDR).  ANDRO has had to develop customized signal processing blocks within the GNU radio software development environment to achieve the necessary coding, decoding, and synchronization required for code division multiple access.