Energy Detector Using a Hybrid Threshold in Cognitive Radio Systems
Summary :
Cognitive radio systems offer the opportunity to improve the spectrum utilization by detecting unused frequency bands while avoiding interference to primary users. This paper proposes a new algorithm for spectrum sensing, which is an energy detector using a hybrid (adaptive and fixed) threshold, in order to compensate the weak points of the existing energy detector in the distorted communication channel environment. Simulation results are presented which show that the performance of the new proposed scheme is better than the existing scheme using a fixed threshold or an adaptive threshold. Additionally, the performance is investigated in terms of several parameters such as the mobile speed and the probability of false alarms. The simulation results also show that the proposed algorithm makes the detector highly robust against fading, shadowing, and interference.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E92-B No.10 pp.3079-3083
- Publication Date
- 2009/10/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E92.B.3079
- Type of Manuscript
- Special Section LETTER (Special Section on Advanced Information and Communication Technologies and Services in Conjunction with Main Topics of APCC/COIN 2008)
- Category
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Jong-Ho KIM, Seung-Hoon HWANG, Deok-Kyu HWANG, "Energy Detector Using a Hybrid Threshold in Cognitive Radio Systems" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 10, pp. 3079-3083, October 2009, doi: 10.1587/transcom.E92.B.3079.
Abstract: Cognitive radio systems offer the opportunity to improve the spectrum utilization by detecting unused frequency bands while avoiding interference to primary users. This paper proposes a new algorithm for spectrum sensing, which is an energy detector using a hybrid (adaptive and fixed) threshold, in order to compensate the weak points of the existing energy detector in the distorted communication channel environment. Simulation results are presented which show that the performance of the new proposed scheme is better than the existing scheme using a fixed threshold or an adaptive threshold. Additionally, the performance is investigated in terms of several parameters such as the mobile speed and the probability of false alarms. The simulation results also show that the proposed algorithm makes the detector highly robust against fading, shadowing, and interference.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.3079/_p
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@ARTICLE{e92-b_10_3079,
author={Jong-Ho KIM, Seung-Hoon HWANG, Deok-Kyu HWANG, },
journal={IEICE TRANSACTIONS on Communications},
title={Energy Detector Using a Hybrid Threshold in Cognitive Radio Systems},
year={2009},
volume={E92-B},
number={10},
pages={3079-3083},
abstract={Cognitive radio systems offer the opportunity to improve the spectrum utilization by detecting unused frequency bands while avoiding interference to primary users. This paper proposes a new algorithm for spectrum sensing, which is an energy detector using a hybrid (adaptive and fixed) threshold, in order to compensate the weak points of the existing energy detector in the distorted communication channel environment. Simulation results are presented which show that the performance of the new proposed scheme is better than the existing scheme using a fixed threshold or an adaptive threshold. Additionally, the performance is investigated in terms of several parameters such as the mobile speed and the probability of false alarms. The simulation results also show that the proposed algorithm makes the detector highly robust against fading, shadowing, and interference.},
keywords={},
doi={10.1587/transcom.E92.B.3079},
ISSN={1745-1345},
month={October},}
Copy
TY - JOUR
TI - Energy Detector Using a Hybrid Threshold in Cognitive Radio Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 3079
EP - 3083
AU - Jong-Ho KIM
AU - Seung-Hoon HWANG
AU - Deok-Kyu HWANG
PY - 2009
DO - 10.1587/transcom.E92.B.3079
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2009
AB - Cognitive radio systems offer the opportunity to improve the spectrum utilization by detecting unused frequency bands while avoiding interference to primary users. This paper proposes a new algorithm for spectrum sensing, which is an energy detector using a hybrid (adaptive and fixed) threshold, in order to compensate the weak points of the existing energy detector in the distorted communication channel environment. Simulation results are presented which show that the performance of the new proposed scheme is better than the existing scheme using a fixed threshold or an adaptive threshold. Additionally, the performance is investigated in terms of several parameters such as the mobile speed and the probability of false alarms. The simulation results also show that the proposed algorithm makes the detector highly robust against fading, shadowing, and interference.
ER -
English
