University of Oulu

K. Umebayashi, Y. Tamaki, M. López-Benítez and J. J. Lehtomäki, "Design of Spectrum Usage Detection in Wideband Spectrum Measurements," in IEEE Access, vol. 7, pp. 133725-133737, 2019. doi: 10.1109/ACCESS.2019.2938549

Design of spectrum usage detection in wideband spectrum measurements

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Author: Umebayashi, Kenta1; Tamaki, Yoshitaka2; López-Benítez, Miguel3,4;
Organizations: 1Department of Electrical and Electronic Engineering, Tokyo University of Agriculture and Technology, 2-24-12 Naka-cho, Koganei, Tokyo 183-8538, Japan
2TAIKI-SHA Ltd., 2-13-1 Shin-Ishikawa, Aoba, Yokohama, Kanagawa, Japan
3Department of Electrical Engineering and Electronics, University of Liverpool, L69 3GJ, UK
4ARIES Research Centre, Antonio de Nebrija University, 28040 Madrid, Spain
5Centre for Wireless Communications (CWC), University of Oulu, 90570 Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 5.4 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2019
Publish Date: 2019-12-10


We investigate the design of signal processing in wideband spectrum usage (SPU) measurements for efficient and smart dynamic spectrum access (DSA). In particular, we focus on spectrum usage detection (SPUD) in the experimental measurements. The detection results can be exploited to estimate statistics of the SPU. An appropriate design of the SPUD depends on the actual SPU in the target frequency band. There is a broad range of wireless systems in a considered broad measurement frequency band, such as from 60MHz to 6GHz, therefore a general design framework in the measurement frequency band is desired. In the proposed design framework, we at first define two models in terms of the SPU and the SPUD process. In addition, the proposed design procedure determines the adequate choice of parameters for the SPUD model based on given parameters of the SPU model in the target frequency band. Numerical evaluation based on computer simulations shows the validity of the design framework and design procedure. Moreover, a modified duty cycle (DC) estimation method is proposed, which can remove bias errors caused by low time resolution in the SPUD. Numerical evaluation based on experimental measurements demonstrates the practicality of the detection framework and procedure proposed in this work.

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Series: IEEE access
ISSN: 2169-3536
ISSN-E: 2169-3536
ISSN-L: 2169-3536
Volume: 7
Pages: 133725 - 133737
DOI: 10.1109/ACCESS.2019.2938549
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work of Kenta Umebayashi was supported by the European Commission in the framework of the H2020-EUJ-02-2018 project 5G-Enhance (Grant agreement no. 815056) and the Ministry of Internal Affairs and Communications (MIC) of Japan, the JSPS KAKENHI Grant Numbers JP18K04124 and JP18KK0109, and Institute of Global Innovation Research in TUAT. The work of Miguel López-Benítez was supported by the British Council under UKIERI DST Thematic Partnerships 2016-17 (ref. DST-198/2017). The work of Janne J. Lehtomäki was supported by Infotech Oulu and the Academy of Finland 6Genesis Flagship (grant no. 318927).
EU Grant Number: (815056) 5G-Enhance - 5G Enhanced Mobile Broadband Access Networks in Crowded Environments
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
Copyright information: © The Authors 2019. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see