Performance evaluation of spectrum sensing using welch periodogram for OFDM signals

Ilkka Harjula; Atso Hekkala; Marja Matinmikko; Miia Mustonen

doi:10.1109/VETECS.2011.5956246

Performance evaluation of spectrum sensing using welch periodogram for OFDM signals

Ilkka Harjula, Atso Hekkala, Marja Matinmikko, Miia Mustonen

BA1510 5G and beyond networks

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

5 Citations (Scopus)

Abstract

Reliable spectrum sensing is one of the key technologies for enabling spectrum coexistence. In this paper, co operative spectrum sensing based on the Welch periodogram is studied in frequency selective fading environment for quadrature phase shift keying (QPSK) and orthogonal frequency division multiplexing (OFDM) signals. Parameter selection for sensing OFDM signal is discussed, and near-optimal values for frequency averaging for QPSK and OFDM signals are derived. The results, given as receiver operating characteristic (ROC) curves, indicate that the frequency-selective fading degrades the performance of the sensing. This could be compensated by co-operation of several sensing nodes. Both analytical and simulation results indicate that best performance of spectrum sensing is achieved with different combining rules in the case of signal passing through additive white Gaussian noise (AWGN) or fading channels. (11 refs.)

Original language	English
Title of host publication	Proceedings of the IEEE 73rd Vehicular Technology Conference, VTC Spring 2011
Place of Publication	Piscataway, NJ, USA
Publisher	IEEE Institute of Electrical and Electronic Engineers
Number of pages	5
ISBN (Electronic)	978-1-4244-8331-0
ISBN (Print)	978-1-4244-8332-7, 978-1-4244-8329-7
DOIs	https://doi.org/10.1109/VETECS.2011.5956246
Publication status	Published - 2011
MoE publication type	A4 Article in a conference publication
Event	IEEE 73rd Vehicular Technology Conference, VTC Spring 2011 - Yokohama, Japan Duration: 15 May 2011 → 18 May 2011

Conference

Conference	IEEE 73rd Vehicular Technology Conference, VTC Spring 2011
Abbreviated title	VTC Spring 2011
Country	Japan
City	Yokohama
Period	15/05/11 → 18/05/11

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Harjula, I., Hekkala, A., Matinmikko, M., & Mustonen, M. (2011). Performance evaluation of spectrum sensing using welch periodogram for OFDM signals. In Proceedings of the IEEE 73rd Vehicular Technology Conference, VTC Spring 2011 IEEE Institute of Electrical and Electronic Engineers . https://doi.org/10.1109/VETECS.2011.5956246

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title = "Performance evaluation of spectrum sensing using welch periodogram for OFDM signals",

abstract = "Reliable spectrum sensing is one of the key technologies for enabling spectrum coexistence. In this paper, co operative spectrum sensing based on the Welch periodogram is studied in frequency selective fading environment for quadrature phase shift keying (QPSK) and orthogonal frequency division multiplexing (OFDM) signals. Parameter selection for sensing OFDM signal is discussed, and near-optimal values for frequency averaging for QPSK and OFDM signals are derived. The results, given as receiver operating characteristic (ROC) curves, indicate that the frequency-selective fading degrades the performance of the sensing. This could be compensated by co-operation of several sensing nodes. Both analytical and simulation results indicate that best performance of spectrum sensing is achieved with different combining rules in the case of signal passing through additive white Gaussian noise (AWGN) or fading channels. (11 refs.)",

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note = "IEEE 73rd Vehicular Technology Conference, VTC Spring 2011, VTC Spring 2011 ; Conference date: 15-05-2011 Through 18-05-2011",

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Harjula, I, Hekkala, A, Matinmikko, M & Mustonen, M 2011, Performance evaluation of spectrum sensing using welch periodogram for OFDM signals. in Proceedings of the IEEE 73rd Vehicular Technology Conference, VTC Spring 2011. IEEE Institute of Electrical and Electronic Engineers , Piscataway, NJ, USA, IEEE 73rd Vehicular Technology Conference, VTC Spring 2011, Yokohama, Japan, 15/05/11. https://doi.org/10.1109/VETECS.2011.5956246

Performance evaluation of spectrum sensing using welch periodogram for OFDM signals. / Harjula, Ilkka; Hekkala, Atso; Matinmikko, Marja; Mustonen, Miia.

Proceedings of the IEEE 73rd Vehicular Technology Conference, VTC Spring 2011. Piscataway, NJ, USA : IEEE Institute of Electrical and Electronic Engineers , 2011.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

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AB - Reliable spectrum sensing is one of the key technologies for enabling spectrum coexistence. In this paper, co operative spectrum sensing based on the Welch periodogram is studied in frequency selective fading environment for quadrature phase shift keying (QPSK) and orthogonal frequency division multiplexing (OFDM) signals. Parameter selection for sensing OFDM signal is discussed, and near-optimal values for frequency averaging for QPSK and OFDM signals are derived. The results, given as receiver operating characteristic (ROC) curves, indicate that the frequency-selective fading degrades the performance of the sensing. This could be compensated by co-operation of several sensing nodes. Both analytical and simulation results indicate that best performance of spectrum sensing is achieved with different combining rules in the case of signal passing through additive white Gaussian noise (AWGN) or fading channels. (11 refs.)

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Access to Document

10.1109/VETECS.2011.5956246