{"title":"An Energy Detection-Based Algorithm for Cooperative Spectrum Sensing in Rayleigh Fading Channel","authors":"H. Bakhshi, E. Khayyamian","volume":116,"journal":"International Journal of Computer and Information Engineering","pagesStart":1444,"pagesEnd":1450,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/10005045","abstract":"Cognitive radios have been recognized as one of the most promising technologies dealing with the scarcity of the radio spectrum. In cognitive radio systems, secondary users are allowed to utilize the frequency bands of primary users when the bands are idle. Hence, how to accurately detect the idle frequency bands has attracted many researchers’ interest. Detection performance is sensitive toward noise power and gain fluctuation. Since signal to noise ratio (SNR) between primary user and secondary users are not the same and change over the time, SNR and noise power estimation is essential. In this paper, we present a cooperative spectrum sensing algorithm using SNR estimation to improve detection performance in the real situation.","references":"[1]\tFederal Communications Commission, \u201cSpectrum policy task force,\u201d Rep. ET Docket no. 02-135, Nov. 2002.\r\n[2]\tFederal Communications Commission, \u201cNotice of proposed rulemaking and order, Facilitating opportunities for flexible, efficient and reliable spectrum use employing cognitive radio technologies\u201d, FCC 03-322, Dec. 2003.\r\n[3]\tJ. Mitola and G. Q. Maguire, \u201cCognitive Radio: Making software radios more personal,\u201d IEEE PersCommun., vol. 6, no.4, pp 13-18, Aug. 1999.\r\n[4]\tJ. Mitola, \u201cCognitive radio: An integrated architecture for software defined radio,\u201d PhD. Diss., Royal Institute of Technology, Stockholm, Sewden, 2000.\r\n[5]\tD. Cabric, S. Mishra, R. Brodersen, \u201cImplementation issues in spectrum sensing for cognitive radio\u201d. Asilomar Conf. on Signals, Systems and Computers, November 2004, vol. 1, pp. 772\u2013776.\r\n[6]\tT. Yucek, H. Arslan, \u201cA survey of spectrum sensing algorithms for cognitive radio applications\u201d, IEEE Commun. Surv. Tutor, 2009, 11, pp. 116\u2013130.\r\n[7]\tZ. Chair and P. K. Varshney, \u201cOptimal data fusion in multiple sensor detection systems,\u201d IEEE Trans. Aerosp. Electron. Syst., vol. 22, no. 1, pp. 98\u2013101, Jan. 1986.\r\n[8]\tZ. Quan, S. Cui, and A. H. Sayed, \u201cOptimal linear cooperation for spectrum sensing in cognitive radio networks,\u201d IEEE J. Sel. Topics Signal Process. vol. 2, no. 1, pp. 28\u201340, Feb. 2008.\r\n[9]\tH. Sun, A. Nallanathan, C. X. Wang and Y. Chen, \u201cWidband Spectrum Sensing for Cognitive Radio Networks: A Survey,\u201d Wireless Communications, IEEE, vol. 20, no. 2, pp. 74\u201381, 2013.\r\n[10]\tY.-C. Liang, Y. Zeng, E. C. Y. Peh, and A. T. Hoang, \u201cSensing throughput tradeoff for cognitive radio networks,\u201d IEEE Trans. Wireless Commun., vol. 7, no. 4, pp. 1326\u20131337, Apr. 2008.\r\n[11]\tH. Urkowitz, \u201cEnergy detection of unknown deterministic signals,\u201d Proc. IEEE, vol. 55, no. 4, pp. 523\u2013531, Apr. 1967.\r\n[12]\tS. Atapattu, C. Tellambura, and H. Jiang, Energy Detection for Spectrum Sensing in Cognitive Radio. Springer, 2014.\r\n[13]\tF. F. Digham, M. S. Alouini, and M. K. Simon, \u201cOn the energy detection of unknown signals over fading channels,\u201d IEEE Trans on Communication., vol. 55, no. 1, pp. 21\u201324, Jan. 2007.\r\n[14]\tT. Salman, A. Badawy, T.M. Elfouly, T. Khattab, A. Mohamed, \"Non-data-aided SNR estimation for QPSK modulation in AWGN channel.\" Wireless and Mobile Computing, Networking and Communications (WiMob), IEEE 10th International Conference on. Oct. 2014 pp. 611-616.\r\n[15]\tA. Wiesel, J. Goldberg, and H. Messer, \u201cNon-data-aided signal to noise- ratio estimation,\u201d in Communications, ICC 2002. IEEE International Conference on,vol. 1, pp. 197\u2013201.\r\n[16]\tR. Lopez-Valcarce and C. Mosquera, \u201cSixth-order statistics-based nondata aided SNR estimation,\u201d IEEE Communications Letters, vol. 11, no. \r\n4, pp. 351\u2013353, April 2007.\r\n[17]\tW. Zhang, R. K. Mallik, and K. B. Letaief, \u201cOptimization of cooperative spectrum sensing with energy detection in cognitive radio networks,\u201d IEEE Trans. on Wireless Comm., vol. 8, no. 8, pp. 5761-5766, December 2009.\r\n[18]\tSu-wen, W.J. kang, Z. Ling, Q. Ming, \u201cSNR-based weighted cooperative spectrum sensing in cognitive radio networks,\u201d ELSEVIER, The Journal of China Universities of Posts and Telecommunications, Vol. 17, Issue 2, pp. 1-7, April 2010.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 116, 2016"}