Reliable spectrum sensing scheme based on dual detector with double-threshold for IEEE 802.22 WRAN

Abstract

In this paper, a reliable spectrum sensing (SS) scheme using dual detectors for IEEE 802.22 WRAN has been presented. In dual or double detectors, first one detector is energy detector (ED) with fixed threshold (FT), while second one is ED with adaptive double threshold (ADT). Numerical results shows that proposed reliable scheme improves detection performance and outperforms the cyclostationary based sensing method and adaptive SS by 12.9% and 15% at −8 dB signal-to-noise ratio (SNR), respectively. It also shows that the proposed scheme takes smaller detection time period than cyclostationary detection and adaptive SS scheme in the order of 5 ms and 0.8 ms at −20 dB SNR, respectively. Moreover, the scheme analyzes in conjunction with cooperative spectrum sensing (CSS) where each CRs work together in order to take final or global decision. It is observed that the proposed sensing scheme with CSS achieves spectrum detection performance in the order of 0.9 for SNR value of as low as −17.5 dB when numbers of CRs are ten.

Keywords

Cognitive radio networks energy detector fixed threshold double-threshold adaptive spectrum sensing cooperative spectrum sensing

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References

[1]

I.F.

Akyildiz,

B.F.

Lo and

Balakrishnan, Cooperative spectrum sensing in cognitive radio networks: A survey, Physical Communication 4(1) (2011), 40–62.

[2]

Axell,

Leus,

E.G.

Larsson and

H.V.

Poor, Spectrum sensing for cognitive radio: State-of-the-art and recent advances, IEEE Signal Processing Magazine 29(3) (2012), 101–116.

[3]

Bagwari and

Singh, Comparative performance evaluation of spectrum sensing techniques for cognitive radio networks, in: 2012 Fourth IEEE International Conference on Computational Intelligence and Communication Networks (CICN), Vol. 1, 2012, pp. 98–105.

[4]

Bagwari and

G.S.

Tomar, Adaptive double-threshold based energy detector for spectrum sensing in cognitive radio networks, International Journal of Electronics Letters 1(1) (2013), 24–32.

[5]

Benko,

Y.C.

Cheong,

Cordeiro et al., A PHY/MAC proposal for IEEE 802.22 WRAN systems – Part 1: The PHY, IEEE 802.22-06/0004r1, February 2006.

[6]

Chen,

Li and

Ma, Cooperative spectrum sensing under noise uncertainty in cognitive radio, in: Wireless Communications, Networking and Mobile Computing, 2008, pp. 1–4, ISBN: 978-1-4244-2108-4.

[7]

Cordeiro,

Challapali,

Birru and

Shankar, IEEE 802.22: The first worldwide wireless standard based on cognitive radios, in: Proceedings of DySPAN, November 2005, 2005.

[8]

Do and

B.L.

Mark, Improving spectrum sensing performance by exploiting multiuser diversity, in: Foundation of Cognitive Radio Systems,

Cheng, ed., 2012, pp. 119–140, ISBN: 978-953-51-0268-7.

[9]

Ejaz,

ul Hasan and

H.S.

Kim, SNR-based adaptive spectrum sensing for cognitive radio networks, International Journal of Innovative Computing, Information and Control 8(9) (2012), 6095–6105.

10.

[10]

Ganesan and

Y.G.

Li, Cooperative spectrum sensing in cognitive radio – Part I: Two user networks, IEEE Transactions on Wireless Communications 6(6) (2007), 2204–2213.

11.

[11]

Ghasemi and

E.S.

Sousa, Collaborative spectrum sensing for opportunistic access in fading environments, in: Proceedings of IEEE International Symposium on New Frontiers in Dynamics Spectrum Access Networks, 8–11 November 2005, 2005, pp. 131–136.

12.

[12]

W.Y.

Lee and

I.F.

Akyildiz, Optimal spectrum sensing framework for cognitive radio networks, IEEE Transactions on Wireless Communications 7(10) (2008), 3845–3857.

13.

[13]

K.B.

Letaief and

Zhang, Cooperative communications for cognitive radio networks, Proceedings of the IEEE 97(5) (2009), 878–893.

14.

[14]

Y.C.

Liang,

Zeng,

Peh and

A.T.

Hoang, Sensing-throughput tradeoff for cognitive radio networks, IEEE Transactions on Wireless Communications 7(4) (2008), 1326–1337.

15.

[15]

S.-Q.

Liu,

B.-J.

Hu and

X.-Y.

Wang, Hierarchical cooperative spectrum sensing based on double thresholds energy detection, IEEE Communications Letters 16(7) (2012), 1096–1099.

16.

[16]

López-Benítez and

Casadevall, Improved energy detection spectrum sensing for cognitive radio, IET Communications 6(8) (2012), 785–796.

17.

[17]

Lu,

Zhou,

Onunkwo and

G.Y.

Li, Ten years of research in spectrum sensing and sharing in cognitive radio, EURASIP Journal on Wireless Communications and Networking 2012 (2012), 28.

18.

[18]

Maleki,

Pandharipande and

Leus, Two-stage spectrum sensing for cognitive radios, in: IEEE Conference on Acoustics Speech and Signal Processing (ICASSP), 2010, pp. 2946–2949.

19.

[19]

S.M.

Mishra,

Sahai and

Brodersen, Cooperative sensing among cognitive radios, in: IEEE International Conference on Communications (ICC’06), Turkey, June 2006, Vol. 4, 2006, pp. 1658–1663.

20.

[20]

Narieda and

Kageyama, Simple spectrum sensing techniques based on cyclostationarity detection in cognitive radio networks, Electronics Letters 49(17) (2013), 1108–1109.

21.

[21]

Song,

Y.D.

Alemseged,

H.N.

Tran,

Villardi,

Sun,

Filin and

Harada, Adaptive two thresholds based energy detection for cooperative spectrum sensing, in: Proceedings of 2010 IEEE CCNC, 2010, pp. 1–6.

22.

[22]

C.H.

Sun,

Zhang and

K.B.

Letaief, Cooperative spectrum sensing for cognitive radios under bandwidth constraints, in: Proceedings of 2007 IEEE Wireless Communications and Networking Conference, 2007, pp. 1–5.

23.

[23]

Teguig,

Scheers and

Le Nir, Data fusion schemes for cooperative spectrum sensing in cognitive radio networks, IEEE Transactions on Wireless Communications 7(4) (2008), 1326–1337.

24.

[24]

Urkowitz, Energy detection of unknown deterministic signals, Proceedings of IEEE 55(4) (1967), 523–531.

25.

[25]

Xing,

Jing,

Cheng,

Huo and

Cheng, Spectrum prediction in cognitive radio networks, IEEE Wireless Communications 20(2) (2013), 90–96.

26.

[26]

Yucek and

Arslan, A survey of spectrum sensing algorithms for cognitive radio applications, IEEE Communication Surveys & Tutorials 11(1) (2009), 116–130.

27.

[27]

Yue and

Zheng, A two-stage spectrum sensing technique in cognitive radio systems based on combining energy detection and one-order cyclostationary feature detection, in: 2009 International Symposium on Web Information Systems and Applications (WISA’09), Nanchang, China, 22–24 May 2009, 2009, pp. 327–330.

28.

[28]

L.-l.

Zhang,

J.-g.

Huang and

C.-k.

Tang, Novel energy detection scheme in cognitive radio, in: IEEE Conference on Signal Processing, Communications and Computing (ICSPCC), 2011, pp. 1–4.

29.

[29]

Zhang and

K.B.

Letaief, Cooperative spectrum sensing with transmit and relay diversity in cognitive radio networks, IEEE Transactions on Wireless Communications 7 (2008), 4761–4766.