1st International ICST Conference on Communications and Networking in China

Research Article

An Adaptive Interference-Avoiding System for DS-UWB Cognitive Radio

Cite
BibTeX Plain Text
  • @INPROCEEDINGS{10.1109/CHINACOM.2006.344820,
    author={Rumin  Yang and Zheng Zhou},
    title={An Adaptive Interference-Avoiding System for DS-UWB Cognitive Radio},
    proceedings={1st International ICST Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2007},
    month={4},
    keywords={Cognitive radio DS-UWB Hermite-Gaussian functions Soft defined radio.},
    doi={10.1109/CHINACOM.2006.344820}
}
  • Rumin Yang
    Zheng Zhou
    Year: 2007
    An Adaptive Interference-Avoiding System for DS-UWB Cognitive Radio
    CHINACOM
    IEEE
    DOI: 10.1109/CHINACOM.2006.344820
Rumin Yang1,*, Zheng Zhou2,*
  • 1: Wireless Network Lab, Beijing University of Posts and Telecommunications, Beijing 100876, China, on leave from the School of Electronic information and Automation, Chongqing Institute of Technology, Chongqing, China
  • 2: Wireless Network Lab, Beijing University of Posts and Telecommunications, Beijing 100876, China
*Contact email: yangrumin@tom.com, zzhou@bupt.edu.cn

Abstract

This paper addresses the problem of interfering with narrowband licensed users caused by DS-UWB systems. Deducting the colliding frequency band from UWB spectrum, and then employing orthonormal expansion by Hermite-Gaussian functions, the paper develops a low-complexity algorithm for generating DS-UWB signals that adaptively avoid or recover arbitrary colliding bands. A system implementing this algorithm is suggested. Performance comparison with matured seventh Gaussian derivative shows that our system achieves about 1.5 dB signal-to-noise gain and 52.2 dB signal-to-interference gain over the referenced system in AWGN environmen

Keywords
Cognitive radio DS-UWB Hermite-Gaussian functions Soft defined radio.
Published
2007-04-10
Publisher
IEEE
http://dx.doi.org/10.1109/CHINACOM.2006.344820
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