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A Cross-layer Cognitive Radio Testbed for the Evaluation of Spectrum Sensing Receiver and Interference Analysis

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7 Author(s)
Jongmin Park ; Georgia Electronic Design Center (GEDC), Georgia Institute of Technology, Atlanta, GA, USA. park@gatech.edu ; Kwan-woo Kim ; Taejoong Song ; Sang Min Lee
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Cognitive radio (CR) technology has been proposed as a promising solution for maximizing the utilization of already-crowded spectrum resources. As new algorithms, circuits and systems are developed for CR technology, it is essential to have a reconfigurable testbed system for their verification. A multistandard, fully software driven, cross-layer CR testbed has been developed to support thorough testing of CR system and custom designed integrated circuits (ICs). This paper presents details of cross-layer CR testbed and three demonstrations of testbed usage; (a) cognitive radio system concept demonstration, (b) multi-resolution spectrum sensing (MRSS) receiver IC evaluation, (c) interference analysis for UWB coexistence with WiMax. With this reconfigurable testbed, a new idea can be easily verified, demonstrated and extended to further research.

Published in:

2008 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2008)

Date of Conference:

15-17 May 2008