Abstract
As the precondition of dynamic spectrum access (DSA), the accuracy and efficiency of spectrum sensing (SS) have an important impact on performance of cognitive networks. However, the performance of energy-aware SS is greatly compromised by the accompanying inter-channel interference (ICI). Aiming to alleviate ICI, this paper proposes an energy-aware cooperative SS method with ICI cancellation. The proposed method consists of two parts: the determination of the optimal threshold and the ICI cancellation. The optimal threshold is obtained by minimizing the sum of probabilities of false alarm and missed detection. The ICI cancellation is implemented indirectly by solving a non-homogeneous linear equation set with a coefficient matrix depending only on the distances between the secondary users and the transmitters of primary users. Simulation shows that the proposed SS method can efficiently cope with the ICI and can achieve much better performance in the range with low signal to interference-plus-noise ratio.
| Original language | English |
|---|---|
| Title of host publication | Proceedings - International Conference on Computer Communications and Networks, ICCCN |
| DOIs | |
| Publication status | Published - 2011 |
| Event | 2011 20th International Conference on Computer Communications and Networks, ICCCN 2011 - Maui, HI Duration: 2011 Jul 31 → 2011 Aug 4 |
Other
| Other | 2011 20th International Conference on Computer Communications and Networks, ICCCN 2011 |
|---|---|
| City | Maui, HI |
| Period | 11/7/31 → 11/8/4 |
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Keywords
- cooperative spectrum sensing
- ICI cancellation
- probability of false alarm
- probability of missed detection
ASJC Scopus subject areas
- Computer Networks and Communications
- Hardware and Architecture
- Software
Cite this
Energy-aware cooperative spectrum sensing with inter-channel interference cancellation for cognitive radio networks. / Zhao, Bingxuan; Shimamoto, Shigeru.
Proceedings - International Conference on Computer Communications and Networks, ICCCN. 2011. 6005879.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Energy-aware cooperative spectrum sensing with inter-channel interference cancellation for cognitive radio networks
AU - Zhao, Bingxuan
AU - Shimamoto, Shigeru
PY - 2011
Y1 - 2011
N2 - As the precondition of dynamic spectrum access (DSA), the accuracy and efficiency of spectrum sensing (SS) have an important impact on performance of cognitive networks. However, the performance of energy-aware SS is greatly compromised by the accompanying inter-channel interference (ICI). Aiming to alleviate ICI, this paper proposes an energy-aware cooperative SS method with ICI cancellation. The proposed method consists of two parts: the determination of the optimal threshold and the ICI cancellation. The optimal threshold is obtained by minimizing the sum of probabilities of false alarm and missed detection. The ICI cancellation is implemented indirectly by solving a non-homogeneous linear equation set with a coefficient matrix depending only on the distances between the secondary users and the transmitters of primary users. Simulation shows that the proposed SS method can efficiently cope with the ICI and can achieve much better performance in the range with low signal to interference-plus-noise ratio.
AB - As the precondition of dynamic spectrum access (DSA), the accuracy and efficiency of spectrum sensing (SS) have an important impact on performance of cognitive networks. However, the performance of energy-aware SS is greatly compromised by the accompanying inter-channel interference (ICI). Aiming to alleviate ICI, this paper proposes an energy-aware cooperative SS method with ICI cancellation. The proposed method consists of two parts: the determination of the optimal threshold and the ICI cancellation. The optimal threshold is obtained by minimizing the sum of probabilities of false alarm and missed detection. The ICI cancellation is implemented indirectly by solving a non-homogeneous linear equation set with a coefficient matrix depending only on the distances between the secondary users and the transmitters of primary users. Simulation shows that the proposed SS method can efficiently cope with the ICI and can achieve much better performance in the range with low signal to interference-plus-noise ratio.
KW - cooperative spectrum sensing
KW - ICI cancellation
KW - probability of false alarm
KW - probability of missed detection
UR - http://www.scopus.com/inward/record.url?scp=80053025082&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80053025082&partnerID=8YFLogxK
U2 - 10.1109/ICCCN.2011.6005879
DO - 10.1109/ICCCN.2011.6005879
M3 - Conference contribution
AN - SCOPUS:80053025082
SN - 9781457706387
BT - Proceedings - International Conference on Computer Communications and Networks, ICCCN
ER -