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Improved cooperative spectrum sensing for cognitive radio under bandwidth constraints

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Lei WangAuthors Info & Claims

IWCMC '10: Proceedings of the 6th International Wireless Communications and Mobile Computing Conference

Pages 843 - 847

https://doi.org/10.1145/1815396.1815590

Published: 28 June 2010 Publication History

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Abstract

In cognitive radio systems, cooperative spectrum sensing can detect the presence of the primary user accurately. However, with the increasing number of cooperative users, a larger dedicated control channel bandwidth is needed to transmit the local binary decisions of SUs to the fusion center. To further improve the sensing performance of cooperative spectrum sensing under bandwidth-limited constraints, we propose a new cooperative spectrum sensing. More specifically, only the secondary users with reliable information are allowed to send their local binary decisions to the fusion center while the others will send nothing. The sensing performance of the proposed method is studied and the analytical performance results are given. Our analysis and numerical results verify that the sensing performance is improved significantly compared to conventional cooperative spectrum sensing.

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Cited By

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Bouraoui RBesbes H(2011)Dynamic resource allocation for cognitive OFDMA networks based on “two witnesses rule” for cooperative spectrum sensing2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications10.1109/PIMRC.2011.6139982(359-363)Online publication date: Sep-2011
https://doi.org/10.1109/PIMRC.2011.6139982

Index Terms

Improved cooperative spectrum sensing for cognitive radio under bandwidth constraints
1. Hardware
  1. Hardware validation

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Published In

IWCMC '10: Proceedings of the 6th International Wireless Communications and Mobile Computing Conference

June 2010

1371 pages

ISBN:9781450300629

DOI:10.1145/1815396

General Chairs:
Ahmed Helmy
University of Florida
,
Peter Mueller
IBM, Switzerland
,
Program Chair:
Yan Zhang
Simula Research Laboratory and University of Oslo, Norway

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 28 June 2010

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Funding Sources

National Natural Science Foundation of China
Ministry of Science and Technology of the People's Republic of China
National Natural Science Foundation of Jiangsu Province
National Postdoctoral Research Program

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IWCMC '10

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IWCMC '10: 2010 International Wireless Communications and Mobile Computing Conference

June 28 - July 2, 2010

Caen, France

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Bouraoui RBesbes H(2011)Dynamic resource allocation for cognitive OFDMA networks based on “two witnesses rule” for cooperative spectrum sensing2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications10.1109/PIMRC.2011.6139982(359-363)Online publication date: Sep-2011
https://doi.org/10.1109/PIMRC.2011.6139982

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Recommendations

Group-based management for cooperative spectrum sensing in cognitive radio networks

Dynamically optimized spatiotemporal prioritization for spectrum sensing in cooperative cognitive radio

Estimation of the Spectrum Sensing for the Cognitive Radios: Test Analysing Using Kalman Filter