Skip to main content

2014 | OriginalPaper | Buchkapitel

A Novel Spectrum Sensing Algorithm in Cognitive Radio System Based on OFDM

verfasst von : Liu Yun, Qicong Peng, Fuchun Sun, Huaizong Shao, Xingfeng Chen, Ling Wang

Erschienen in: Foundations and Practical Applications of Cognitive Systems and Information Processing

Verlag: Springer Berlin Heidelberg

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config
loading …

Abstract

In cognitive radio (CR) networks, spectrum sensing which attracts a lot of interest is a significant task. Aiming at the problem that conventional spectrum sensing technique is usually focused on signal band. This paper introduces a multi-band joint spectrum detection based on multiple signal classification (MUSIC) algorithm for orthogonal frequency division multiplexing (OFDM) cognitive ratio system. The proposed eigenvalue-construct method only uses signal autocorrelation of OFDM symbols and simple sorting to achieve the spectrum detection. The computer simulations show that the proposed approach has a good performance compared with the conventional energy sensing method which uses the same threshold over multiple frequency bands.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 340 Zeitschriften

aus folgenden Fachgebieten:

  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Versicherung + Risiko




Jetzt Wissensvorsprung sichern!

Literatur
1.
Zurück zum Zitat Prasad RV, Pawelczak P, Hoffmeyer JA, Steven Berger H (2008) Cognitive functionality in next generation wireless networks: standardization efforts. IEEE Commun Mag 46(4):72–78 Prasad RV, Pawelczak P, Hoffmeyer JA, Steven Berger H (2008) Cognitive functionality in next generation wireless networks: standardization efforts. IEEE Commun Mag 46(4):72–78
2.
Zurück zum Zitat Kim S, Lee J, Wang H, Hong D (2009) Sensing performance of energy detector with correlated multiple antennas. IEEE Signal Process Lett 16:671–674 Kim S, Lee J, Wang H, Hong D (2009) Sensing performance of energy detector with correlated multiple antennas. IEEE Signal Process Lett 16:671–674
3.
Zurück zum Zitat Shen J, Liu S, Zeng L, Xie G, Gao J, Liu Y (2009) Optimization of cooperative spectrum sensing in cognitive radio network. IET Commun 3:1170–1178 Shen J, Liu S, Zeng L, Xie G, Gao J, Liu Y (2009) Optimization of cooperative spectrum sensing in cognitive radio network. IET Commun 3:1170–1178
4.
Zurück zum Zitat Wang Y, Feng C, Zeng Z, Guo C (2009) A robust and energy efficient cooperative spectrum sensing scheme in cognitive radio networks, Institute of Electrical and Electronics Engineers Inc., Phoenix Park, Korea, pp 640–645 Wang Y, Feng C, Zeng Z, Guo C (2009) A robust and energy efficient cooperative spectrum sensing scheme in cognitive radio networks, Institute of Electrical and Electronics Engineers Inc., Phoenix Park, Korea, pp 640–645
5.
Zurück zum Zitat Sahai A, Cabric D (2005) Spectrum sensing: fundamental limits and practical challenges. In: Proceedings of IEEE international symposium on new frontiers in dynamic spectrum access network, November 2005, pp 546–551 Sahai A, Cabric D (2005) Spectrum sensing: fundamental limits and practical challenges. In: Proceedings of IEEE international symposium on new frontiers in dynamic spectrum access network, November 2005, pp 546–551
6.
Zurück zum Zitat Tandra R, Sahai A (2005) Fundamental limits on detection in low SNR under noise uncertainty. Wirel Commun 1:464–469 Tandra R, Sahai A (2005) Fundamental limits on detection in low SNR under noise uncertainty. Wirel Commun 1:464–469
7.
Zurück zum Zitat Ruttik K, Koufos K, Jantti R (2009) Spectrum sensing with multiple antennas. In: Proceedings of 2009 IEEE international conference on systems, man, and cybernetics, October 2009, pp 2281–2286 Ruttik K, Koufos K, Jantti R (2009) Spectrum sensing with multiple antennas. In: Proceedings of 2009 IEEE international conference on systems, man, and cybernetics, October 2009, pp 2281–2286
8.
Zurück zum Zitat Kay SM (1993) Fundamentals of statistical signal processing: estimation theory. Prentice-Hall, Englewood Cliffs Kay SM (1993) Fundamentals of statistical signal processing: estimation theory. Prentice-Hall, Englewood Cliffs
9.
Zurück zum Zitat Gardner WA (1991) Exploitation of spectral redundancy in cyclostationary signals. IEEE Signal Process Mag 8(2):14–36 Gardner WA (1991) Exploitation of spectral redundancy in cyclostationary signals. IEEE Signal Process Mag 8(2):14–36
11.
Zurück zum Zitat Cardoso LS, Debbah M, Bianchi P, Najim J (2008) Cooperative spectrum sensing using random matrix theory. In: 3rd international symposium on wireless pervasive computing, May 2008, pp 334–338 Cardoso LS, Debbah M, Bianchi P, Najim J (2008) Cooperative spectrum sensing using random matrix theory. In: 3rd international symposium on wireless pervasive computing, May 2008, pp 334–338
13.
Zurück zum Zitat Tandra R, Sahai A (2008) SNR walls for signal detection. IEEE J Sel Top Sign Proces 2(1):4–17 Tandra R, Sahai A (2008) SNR walls for signal detection. IEEE J Sel Top Sign Proces 2(1):4–17
14.
Zurück zum Zitat Batra A, Balakrishnan J, Dabak A et al (2004) Multi-band OFDM physical layer proposal for IEEE 802.15 task group 3a. IEEE P802.15-04/0493r1, September 2004 Batra A, Balakrishnan J, Dabak A et al (2004) Multi-band OFDM physical layer proposal for IEEE 802.15 task group 3a. IEEE P802.15-04/0493r1, September 2004
Metadaten
Titel
A Novel Spectrum Sensing Algorithm in Cognitive Radio System Based on OFDM
verfasst von
Liu Yun
Qicong Peng
Fuchun Sun
Huaizong Shao
Xingfeng Chen
Ling Wang
Copyright-Jahr
2014
Verlag
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/978-3-642-37835-5_12