TY - GEN
T1 - GHz-wide sensing and decoding using the sparse Fourier transform
AU - Hassanieh, Haitham
AU - Shi, Lixin
AU - Abari, Omid
AU - Hamed, Ezzeldin
AU - Katabi, Dina
PY - 2014
Y1 - 2014
N2 - We present BigBand, a technology that can capture GHz of spectrum in realtime without sampling the signal at GS/s - i.e., without high speed ADCs. Further, it is simple and can be implemented on commodity low-power radios. Our approach builds on recent advances in the area of sparse Fourier transforms, which show that it is possible to reconstruct a sparse signal without sampling it at the Nyquist rate. To demonstrate our design, we implement it using 3 software radios, each sampling the spectrum at 50 MS/s, producing a device that captures 0.9 GHz - i.e., 6× larger digital bandwidth than the three software radios combined. Finally, an extension of BigBand can perform GHz spectrum sensing even in scenarios where the spectrum is not sparse.
AB - We present BigBand, a technology that can capture GHz of spectrum in realtime without sampling the signal at GS/s - i.e., without high speed ADCs. Further, it is simple and can be implemented on commodity low-power radios. Our approach builds on recent advances in the area of sparse Fourier transforms, which show that it is possible to reconstruct a sparse signal without sampling it at the Nyquist rate. To demonstrate our design, we implement it using 3 software radios, each sampling the spectrum at 50 MS/s, producing a device that captures 0.9 GHz - i.e., 6× larger digital bandwidth than the three software radios combined. Finally, an extension of BigBand can perform GHz spectrum sensing even in scenarios where the spectrum is not sparse.
UR - http://www.scopus.com/inward/record.url?scp=84904439220&partnerID=8YFLogxK
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U2 - 10.1109/INFOCOM.2014.6848169
DO - 10.1109/INFOCOM.2014.6848169
M3 - Conference contribution
AN - SCOPUS:84904439220
SN - 9781479933600
T3 - Proceedings - IEEE INFOCOM
SP - 2256
EP - 2264
BT - IEEE INFOCOM 2014 - IEEE Conference on Computer Communications
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 33rd IEEE Conference on Computer Communications, IEEE INFOCOM 2014
Y2 - 27 April 2014 through 2 May 2014
ER -