Vol. 22
Latest Volume
All Volumes
PIERC 127 [2022] PIERC 126 [2022] PIERC 125 [2022] PIERC 124 [2022] PIERC 123 [2022] PIERC 122 [2022] PIERC 121 [2022] PIERC 120 [2022] PIERC 119 [2022] PIERC 118 [2022] PIERC 117 [2021] PIERC 116 [2021] PIERC 115 [2021] PIERC 114 [2021] PIERC 113 [2021] PIERC 112 [2021] PIERC 111 [2021] PIERC 110 [2021] PIERC 109 [2021] PIERC 108 [2021] PIERC 107 [2021] PIERC 106 [2020] PIERC 105 [2020] PIERC 104 [2020] PIERC 103 [2020] PIERC 102 [2020] PIERC 101 [2020] PIERC 100 [2020] PIERC 99 [2020] PIERC 98 [2020] PIERC 97 [2019] PIERC 96 [2019] PIERC 95 [2019] PIERC 94 [2019] PIERC 93 [2019] PIERC 92 [2019] PIERC 91 [2019] PIERC 90 [2019] PIERC 89 [2019] PIERC 88 [2018] PIERC 87 [2018] PIERC 86 [2018] PIERC 85 [2018] PIERC 84 [2018] PIERC 83 [2018] PIERC 82 [2018] PIERC 81 [2018] PIERC 80 [2018] PIERC 79 [2017] PIERC 78 [2017] PIERC 77 [2017] PIERC 76 [2017] PIERC 75 [2017] PIERC 74 [2017] PIERC 73 [2017] PIERC 72 [2017] PIERC 71 [2017] PIERC 70 [2016] PIERC 69 [2016] PIERC 68 [2016] PIERC 67 [2016] PIERC 66 [2016] PIERC 65 [2016] PIERC 64 [2016] PIERC 63 [2016] PIERC 62 [2016] PIERC 61 [2016] PIERC 60 [2015] PIERC 59 [2015] PIERC 58 [2015] PIERC 57 [2015] PIERC 56 [2015] PIERC 55 [2014] PIERC 54 [2014] PIERC 53 [2014] PIERC 52 [2014] PIERC 51 [2014] PIERC 50 [2014] PIERC 49 [2014] PIERC 48 [2014] PIERC 47 [2014] PIERC 46 [2014] PIERC 45 [2013] PIERC 44 [2013] PIERC 43 [2013] PIERC 42 [2013] PIERC 41 [2013] PIERC 40 [2013] PIERC 39 [2013] PIERC 38 [2013] PIERC 37 [2013] PIERC 36 [2013] PIERC 35 [2013] PIERC 34 [2013] PIERC 33 [2012] PIERC 32 [2012] PIERC 31 [2012] PIERC 30 [2012] PIERC 29 [2012] PIERC 28 [2012] PIERC 27 [2012] PIERC 26 [2012] PIERC 25 [2012] PIERC 24 [2011] PIERC 23 [2011] PIERC 22 [2011] PIERC 21 [2011] PIERC 20 [2011] PIERC 19 [2011] PIERC 18 [2011] PIERC 17 [2010] PIERC 16 [2010] PIERC 15 [2010] PIERC 14 [2010] PIERC 13 [2010] PIERC 12 [2010] PIERC 11 [2009] PIERC 10 [2009] PIERC 9 [2009] PIERC 8 [2009] PIERC 7 [2009] PIERC 6 [2009] PIERC 5 [2008] PIERC 4 [2008] PIERC 3 [2008] PIERC 2 [2008] PIERC 1 [2008]
2011-07-19
Determining Optimal Sensing Time for Multi-Radio Multi-Channel Cognitive Radios
By
Progress In Electromagnetics Research C, Vol. 22, 241-258, 2011
Abstract
Fast and efficient spectrum sensing is vital for multi-radio multi-channel cognitive radio (CR) networks where unlicensed secondary users (SUs) have to sense and opportunistically transmit on multiple spectrum bands without causing any harmful interference to the licensed primary users (PUs) of those spectrum bands. Accordingly, this paper presents a smart, practical and efficient wideband spectrum sensing scheme based on an optimal sensing stop policy that aims to optimize SU throughput while adhering to the PU interference constraints. Unlike existing work, this scheme is smart because in determining the best time for the multi-transmitter SU to stop sensing and start data transmission based on the channels that have been sensed idle, this scheme explicitly takes into consideration the number of transmitters on the SU; so-called N-transmitters constrained SU. Further, we formulate and solve the optimal sensing stopping problem. The numerical and simulation results presented verify the efficiency of the proposed sensing scheme.
Citation
Brownson Obaridoa Obele Mohsin Iftikhar , "Determining Optimal Sensing Time for Multi-Radio Multi-Channel Cognitive Radios," Progress In Electromagnetics Research C, Vol. 22, 241-258, 2011.
doi:10.2528/PIERC11041207
http://www.jpier.org/PIERC/pier.php?paper=11041207
References

1. Cordeiro, C., K. Challapali, D. Birru, and S. Shankar N, IEEE 802.22: The first worldwide wireless standard based on cognitive radios, Proc. of the DySPAN Conf., 328-337, Baltimore, MD, Nov. 2005.

2. Yucek, T. and H. Arslan, "A survey of spectrum sensing algorithms for cognitive radio applications," IEEE Commun. Surveys and Tutorials, Vol. 11, No. 1, 116-130, Mar. 2009.
doi:10.1109/SURV.2009.090109

3. Quan, Z., S. Cui, A. H. Sayed, and H. V. Poor, "Optimal multiband joint detection for spectrum sensing in cognitive radio networks," IEEE Trans. on Signal Processing, Vol. 57, No. 3, 1128-140, Mar. 2009.
doi:10.1109/TSP.2008.2008540

4. Fan, R. and H. Jiang, "Optimal multi-channel cooperative sensing in cognitive radio networks," IEEE Trans. on Wireless Communications, Vol. 9, No. 3, 1128-1138, Mar. 2010.
doi:10.1109/TWC.2010.03.090467

5. Kim, S. J. and G. B. Giannaskis, "Sequential and cooperative sensing for multi-channel cognitive radios," IEEE Transactions on Signal Processing, Vol. 58, No. 8, 4239-4253, Aug. 2010.
doi:10.1109/TSP.2010.2049106

6. Chen, Z., N. Guo, and R. C. Qiu, "Demonstration of real-time spectrum sensing for cognitive radio," IEEE Communications Letters, Vol. 14, No. 10, 915-917, Oct. 2010.
doi:10.1109/LCOMM.2010.082610.100725

7. Digham, F. F., M. S. Alouini, and M. K. Simon, "On the energy detection of unknown signals over fading channels," IEEE Transactions on Communications, Vol. 55, No. 1, 21-24, Jan. 2007.
doi:10.1109/TCOMM.2006.887483

8. Zhao, Y., S. Li, N. Zhao, and Z. Wu, "A novel energy detection algorithm for spectrum sensing in cognitive radio," Information Technology Journal, Vol. 9, No. 8, 1659-1664, 2010.
doi:10.3923/itj.2010.1659.1664

9. Zeng, Y. and Y. C. Liang, "Spectrum-sensing algorithms for cognitive radio based on statistical covariances," IEEE Transactions on Vehicular Technology, Vol. 58, No. 4, 1804-1815, May 2009.
doi:10.1109/TVT.2008.2005267

10. Nikias, C. L. and J. M. Mendel, "Signal processing with higher-order spectra," IEEE Signal Processing Mag., Vol. 10, No. 3, 10-37, 1993.
doi:10.1109/79.221324

11. Maranda, B. H. and J. A. Fawcett, "The performance analysis of a fourth-moment detector," Proc. International Conference on Acoustic, Speech, and Signal Processing (ICASSP-90), NM, USA, Apr. 1990.

12. Ferguson, T. S., Optimal stopping and applications, Oct. 2008, available at http://www.math.ucla.edu/ tom/Stopping/Contents.html.