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Energy detection of DVB-T signals against noise uncertainty

Journal Article


Abstract


  • In this letter, we consider the spectrum sensing of digital video broadcasting-terrestrial (DVB-T) signals with energy detection (ED). ED delivers a superior performance among low computational complexity detectors, but it is vulnerable to noise uncertainty. By exploiting the pilot periodicity in DVB-T signals, we propose a low complexity noise power estimator which works in multipath channels, and does not require time and frequency synchronization. Simulations show that, with the noise power estimator, ED significantly outperforms the pilot correlation-based detection which is often used in DVB-T spectrum sensing.

Publication Date


  • 2014

Citation


  • M. Jin, Q. Guo, J. Tong, J. Xi & Y. Li, "Energy detection of DVB-T signals against noise uncertainty," IEEE Communications Letters, vol. 18, (10) pp. 1831-1834, 2014.

Scopus Eid


  • 2-s2.0-84907974184

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3118

Has Global Citation Frequency


Number Of Pages


  • 3

Start Page


  • 1831

End Page


  • 1834

Volume


  • 18

Issue


  • 10

Place Of Publication


  • United States

Abstract


  • In this letter, we consider the spectrum sensing of digital video broadcasting-terrestrial (DVB-T) signals with energy detection (ED). ED delivers a superior performance among low computational complexity detectors, but it is vulnerable to noise uncertainty. By exploiting the pilot periodicity in DVB-T signals, we propose a low complexity noise power estimator which works in multipath channels, and does not require time and frequency synchronization. Simulations show that, with the noise power estimator, ED significantly outperforms the pilot correlation-based detection which is often used in DVB-T spectrum sensing.

Publication Date


  • 2014

Citation


  • M. Jin, Q. Guo, J. Tong, J. Xi & Y. Li, "Energy detection of DVB-T signals against noise uncertainty," IEEE Communications Letters, vol. 18, (10) pp. 1831-1834, 2014.

Scopus Eid


  • 2-s2.0-84907974184

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3118

Has Global Citation Frequency


Number Of Pages


  • 3

Start Page


  • 1831

End Page


  • 1834

Volume


  • 18

Issue


  • 10

Place Of Publication


  • United States