SNE-ISMTV: VESNA wireless sensor node expansion for cognitive radio experiments
نویسنده
چکیده
This demonstration shows how VESNA wireless sensor nodes can be used for cognitive radio experiments involving wireless sensor networks. SNE-ISMTV is a radio frontend that has been developed for this purpose. Spectrum sensing capability in the TV white-spaces and 2.4 GHz ISM band is demonstrated by running receivers in a swept-tuned spectrum analyzer configuration and displaying measured spectrograms on a laptop PC. Analogue signal transmission simulating a wireless microphone is demonstrated by executing a direct digital synthesis algorithm on the sensor node microprocessor, transmitting the modulated signal using a narrow-band sub-1 GHz transceiver and monitoring the transmission using an USRP.
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