Xampling-enabled coexistence in spectrally crowded environments

We present a composite suite of technologies for spectral coexistence of existing communication and radar systems using the Xampling framework. For a stand-alone communication system, we consider a cognitive radio (CRo) that receives multiband signals with unknown carrier frequencies and directions...

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Bibliographic Details
Main Authors: Mishra, Kumar Vijay, Cohen, David, Tsiper, Shahar, Stein, Shahar, Shoshan, Eli, Namer, Moshe, Meltsin, Maxim, Madmoni, Ron, Ronen, Eran, Grimovich, Yana, Eldar, Yonina C.
Format: Conference Proceeding
Language:English
Subjects:
Cognitive radio
cognitiveradar
Interference
MIMO
Prototypes
Radar
Receivers
Sensors
spectrum sharing
sub-Nyquist
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Summary:We present a composite suite of technologies for spectral coexistence of existing communication and radar systems using the Xampling framework. For a stand-alone communication system, we consider a cognitive radio (CRo) that receives multiband signals with unknown carrier frequencies and directions of arrival, and demonstrate joint spectrum sensing via CompreSsed CArrier and Direction-ofarrival Estimation (CaSCADE) with an L-shaped configuration of two uniform linear arrays. For radars operating in bands with widespread spectral interference, we present an X-band prototype of cognitive sub-Nyquist multiple input multiple output (MIMO) radar (SUMMeR). The prototype allows sampling in both spatial and spectral domains at sub-Nyquist rates and cognitively transmits over multiple narrow subbands. Finally, we demonstrate Spectral Coexistence via Xampling (SpeCX) technology that shows joint operation of both - cognitive radio and cognitive monostatic radar - over a common spectrum. Our solutions to individual and joint operation of communication and radar systems supersede existing spectrum sharing technologies that require a compromise over performance of one of the systems.
ISSN:2379-190X
DOI:10.1109/ICASSP.2017.8005298