Vol.5 No.1 (February 2015)
Research on a Blind Sensing Algorithm in Cognitive Radio Based on Over-Sampling and Multiple Autocorrelation
For the traditional energy detection in cognitive radio having a very low detection probability in low SNR, this paper proposes a blind sensing method based on over-sampling and multiple auto-correlation. Firstly, a received signal is over-sampled. Then, the signal is divided into multiple sub-channels. Finally, each sub-channel has an autocorrelation operation. The simulation results show that the detection probability for the proposed method improves more greatly than the tra-ditional energy detection algorithm when the times for the autocorrelation operation increase.
陈 宏 , 王树彬 , 刘 琨 , 孟方方 , 李树华 (2015) 基于过采样和多重自相关的认知无线电盲感知算法研究。 无线通信， 5， 1-6. doi: 10.12677/HJWC.2015.51001
 Wang, S.B., Zhou, Z. and Kwak, K. (2012) Two pulse designs for ultra wideband-cognitive radio by using multiple modified transform domain communication system. Applied Mathematics & Information Sciences, 6, 619-628.
 Wang, L.-C., Wang, C.-W. and Chang, C.-J. (2012) Modeling and analysis for spectrum handoffs in cognitive radio networks. IEEE Transactions on Mobile Computing, 10, 1499-1500.
 De, P. and Liang, Y.-C. (2008) Blind spectrum sensing algorithms for cognitive radio networks. IEEE Transactions on Vehicular Technology, 57, 2834-2842.
 Fitze, F.H.P. and Katz, M.D., 著, 周正, 等, 译 (2011) 认知无线网络. 北京邮电大学出版社, 北京, 295-296.
 许瑞琛, 蒋挺 (2013) 基于PODMP的认知无线电自适应频谱感知算法. 通信学报, 6, 49-56.
 Gao, L., Xu, Y.Y. and Wang, X.B. (2011) MAP: Multiauctioneer progressive auction for dynamic spectrum access. IEEE Transactions on Mobile Computing, 10, 1144-1161.
 Lai, L.F., El Gamal, H., Jiang, H. and Poor, H.V. (2011) Cognitive medium access: Exploration, exploitation, and competition. IEEE Transactions on Mobile Computing, 10, 239-253.
 Bouabdallah, N., Ishibashi, B. and Boutaba, R. (2011) Performance of cognitive radio-based wireless mesh networks. IEEE Transactions on Mobile Computing, 10, 122-123.
 Ungerboeck, G. (1976) Fractional tap-spacing equalizer and consequences for clock recovery in data modems. IEEE Transactions on Communications, 24, 856-864.