Energy/bandwidth-Saving Cooperative Spectrum Sensing for Two-hopWRAN

Ming-Tuo Zhou; Chunyi Song; Chin Sean Sum; Hiroshi Harada

Research Article

Energy/bandwidth-Saving Cooperative Spectrum Sensing for Two-hopWRAN

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@ARTICLE{10.4108/cogcom.1.1.e5,
    author={Ming-Tuo Zhou and Chunyi Song and Chin Sean Sum and Hiroshi Harada},
    title={Energy/bandwidth-Saving Cooperative Spectrum Sensing for Two-hopWRAN},
    journal={EAI Endorsed Transactions on Cognitive Communications},
    volume={1},
    number={1},
    publisher={ICST},
    journal_a={COGCOM},
    year={2014},
    month={7},
    keywords={TV White Space, Cognitive radio, IEEE 802.22, Wireless Regional Access Network, Cooperative Spectrum Sensing, Energy saving},
    doi={10.4108/cogcom.1.1.e5}
}

Ming-Tuo Zhou
Chunyi Song
Chin Sean Sum
Hiroshi Harada
Year: 2014
Energy/bandwidth-Saving Cooperative Spectrum Sensing for Two-hopWRAN
COGCOM
ICST
DOI: 10.4108/cogcom.1.1.e5

Ming-Tuo Zhou¹^,*, Chunyi Song², Chin Sean Sum³, Hiroshi Harada⁴

1: Smart Wireless Laboratory, NICT Singapore Representative Office, 20 Science Park Road, #01-09A/10 TeleTech Park, Singapore 117674
2: Institute of Marine Information Science and Engineering, Zhejiang University, China
3: Wi-SUN Alliance
4: Graduate School of Informatics, Kyoto University, Japan

*Contact email: zhou.mingtuo@ieee.org

Abstract

A two-hop wireless regional area network (WRAN) providing monitoring services operating in Television White Space (TVWS), i.e., IEEE P802.22b, may employ a great number of subscriber customer-premises equipments (S-CPEs) possibly without mains power supply, leading to requirement of cost-effective and power-saving design. This paper proposes a framework of cooperative spectrum sensing (CSS) and an energy/bandwidth saving CSS scheme to P802.22b. In each round of sensing, S-CPEs with SNRs lower than a predefined threshold are excluded from reporting sensing results. Numerical results show that the fused missed-detection probability and false alarmprobability could remainmeeting sensing requirements, and the overall fused error probability changes very little. With 10 S-CPEs, it is possible to save more than 40% of the energy/bandwidth on a Rayleigh channel. The principle proposed can apply to other advanced sensing technologies capable of detecting primary signals with low average SNR.

Keywords: TV White Space, Cognitive radio, IEEE 802.22, Wireless Regional Access Network, Cooperative Spectrum Sensing, Energy saving

Received: 30th May 2014
Accepted: 18th Jun 2014
Published: 16th Jul 2014
Publisher: ICST

: http://dx.doi.org/10.4108/cogcom.1.1.e5

Copyright © 2014 Ming-Tuo Zhou et al., licensed to ICST. This is an open access article distributed under the terms of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/),which permits unlimited use, distribution and reproduction in any medium so long as the original work is properly cited.