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Qiu, R. et al. A Unified Multi-Functional Dynamic Spectrum Access Framework: Tutorial, Theory and Multi-GHzWideband Testbed. Sensors 2009, 9, 6530-6603
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Correction published on 31 August 2009, see Sensors 2009, 9(9), 6835.

Sensors 2009, 9(8), 6530-6603; doi:10.3390/s90806530

A Unified Multi-Functional Dynamic Spectrum Access Framework: Tutorial, Theory and Multi-GHz Wideband Testbed

1,* , 1
1 Department of Electrical and Computer Engineering, Center for Manufacturing Research, Tennessee Technological University, Cookeville, TN 38505, USA 2 Department of Electrical Engineering and Computer Science, The University of Tennessee Knoxville, TN 37996-2100, USA 3 Department of Electrical Engineering,Wright State University, 3640 Colonel Glenn Highway, Dayton, OH 45435-0001, USA
* Author to whom correspondence should be addressed.
Received: 20 April 2009 / Revised: 14 July 2009 / Accepted: 4 August 2009 / Published: 21 August 2009
(This article belongs to the Special Issue Wireless Sensor Technologies and Applications)


Dynamic spectrum access is a must-have ingredient for future sensors that are ideally cognitive. The goal of this paper is a tutorial treatment of wideband cognitive radio and radar—a convergence of (1) algorithms survey, (2) hardware platforms survey, (3) challenges for multi-function (radar/communications) multi-GHz front end, (4) compressed sensing for multi-GHz waveforms—revolutionary A/D, (5) machine learning for cognitive radio/radar, (6) quickest detection, and (7) overlay/underlay cognitive radio waveforms. One focus of this paper is to address the multi-GHz front end, which is the challenge for the next-generation cognitive sensors. The unifying theme of this paper is to spell out the convergence for cognitive radio, radar, and anti-jamming. Moore’s law drives the system functions into digital parts.From a system viewpoint, this paper gives the first comprehensive treatment for the functions and the challenges of this multi-function (wideband) system. This paper brings together the inter-disciplinary knowledge.
Keywords: cognitive radio; testbed; cognitive radar cognitive radio; testbed; cognitive radar
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Qiu, R.; Guo, N.; Li, H.; Wu, Z.; Chakravarthy, V.; Song, Y.; Hu, Z.; Zhang, P.; Chen, Z. A Unified Multi-Functional Dynamic Spectrum Access Framework: Tutorial, Theory and Multi-GHz Wideband Testbed. Sensors 2009, 9, 6530-6603.

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