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Opportunistic Reporting-based Sensing-Reporting-Throughput Optimization Scheme for Cooperative Cognitive Radio Networks

  • So, Jaewoo (Department of Electronic Engineering, Sogang Unversity)
  • Received : 2016.06.03
  • Accepted : 2016.12.13
  • Published : 2017.03.31

Abstract

This paper proposes an opportunistic reporting-based sensing-reporting-throughput optimization scheme that maximizes the spectral efficiency of secondary users (SUs) in cooperative cognitive radio networks with a soft combining rule. The performance of cooperative spectrum sensing depends on the sensing time, the reporting time of transmitting sensing results, and the fusion scheme. While longer sensing time and reporting time improve the sensing performance, this shortens the allowable data transmission time, which in turn degrades the spectral efficiency of SUs. The proposed scheme adopts an opportunistic reporting scheme to restrain the reporting overhead and it jointly controls the sensing-reporting overhead in order to increase the spectral efficiency of SUs. We show that there is a trade-off between the spectral efficiency of SUs and the overheads of cooperative spectrum sensing. The numerical results demonstrate that the proposed scheme significantly outperforms the conventional sensing-throughput optimization schemes when there are many SUs. Moreover, the numerical results show that the sensing-reporting time should be jointly optimized in order to maximize the spectral efficiency of SUs.

Keywords

References

  1. S. M. Mishra, A. Sahai, and R. Brodersen, "Cooperative sensing among cognitive radios," in Proc. of IEEE Int. Conf. Commun.(ICC), Jun. 2006, pp. 8164-9547.
  2. Y.-C. Liang, K.-C. Chen, G. Y. Li, and P. Mahonen, "Cognitive radio networking and communications: an overview," IEEE Trans. Veh. Technol., vol. 60, no. 711, pp. 3386-3407, Sep. 2011. https://doi.org/10.1109/TVT.2011.2158673
  3. A. Ghasemi and E. S. Sousa, "Collaborative spectrum sensing for opportunistic access in fading environments," in Proc. of IEEE Int. Symp. New Frontiers Dynamic Spectr. Access Netw. (DySPAN), Jan. 1997, pp. 290-294.
  4. S. Chaudhari, J. Lunden, V. Koivunen, and H. V. Poor, "Cooperative sensing with imperfect reporting channels: hard decisions or soft decisions?," IEEE Trans. Signal Process., vol. 60, no. 1, pp. 18-28, Jan. 2012. https://doi.org/10.1109/TSP.2011.2170978
  5. E. C. Y. Peh, Y.-C. Liang, Y. L. Guan, and Y. Zeng, "Cooperative spectrum sensing in cognitive radio networks with weighted decision fusion scheme," IEEE Trans. Wireless Commun., vol. 9, no. 12, pp. 3838-3847, Dec. 2010. https://doi.org/10.1109/TWC.2010.092810.100320
  6. J. Ma, G. Zhao, and Y. G. Li, "Soft combination and detection for cooperative spectrum sensing in cognitive radio networks," IEEE Trans. Wireless Commun., vol. 7, no. 11, pp. 4502-4507, Nov. 2008. https://doi.org/10.1109/T-WC.2008.070941
  7. Y.-C. Liang, Y. Zeng, E. C. Y. Peh, and A. T. Hoang, "Sensing-throughput tradeoff for cognitive radio networks," IEEE Trans. Wireless Commun., vol. 7, no. 4, pp. 1326-1337, Apr. 2008. https://doi.org/10.1109/TWC.2008.060869
  8. M. Cardenas-Juarez and M. Ghogho, "Spectrum sensing and data transmission trade-off in cognitive radio under outage constraints," Electron. Lett., vol. 47, no. 7, pp. 469-471, Mar. 2011. https://doi.org/10.1049/el.2011.0307
  9. A. Noel and R. Schober, "Convex sensing-reporting optimization for cooperative spectrum sensing," IEEE Trans. Wireless Commun., vol. 11, no. 5, pp. 1900-1910, May 2012. https://doi.org/10.1109/TWC.2012.030812.111408
  10. Y.-J. Choi, W. Pak, Y. Xin, and S. Rangarajan, "Throughput analysis of cooperative spectrum sensing in Rayleigh-faded cognitive radio systems," IET Commun., vol. 6, no. 9, pp. 1104-1110, Sep. 2012. https://doi.org/10.1049/iet-com.2010.1025
  11. W. Lee and D.H. Cho, "Enhanced spectrum sensing scheme in cognitive radio systems with MIMO antennae," IEEE Trans. Veh. Technol., vol. 60, no. 3, pp. 1072-1085, Mar. 2011. https://doi.org/10.1109/TVT.2011.2112676
  12. W. Zhang, R.K. Mallik, and K.B. Letaief, "Optimization of cooperative spectrum sensing with energy detection in cognitive radio networks," IEEE Trans. Wireless Commun., vol. 8, no. 12, pp. 5761-5766, Dec. 2009. https://doi.org/10.1109/TWC.2009.12.081710
  13. J. Lai, E. Dutkiewicz, R.P. Liu, and R. Vesilo, "Performance optimization of cooperative spectrum sensing in cognitive radio networks," in Proc. of IEEE Wireless Commun. Netw. Conf. (WCNC), pp.631-636, Apr. 2013.
  14. M. Dai, H. Wang, X. Lin, S. Zhang, and B. Chen, "Opportunistic relaying with analogue and digital network coding for two-way parallel relay network," IET Commun., vol. 8, no. 12, pp. 2200-2206, Aug. 2014. https://doi.org/10.1049/iet-com.2014.0029
  15. M. Dai, B. Mao, D. Shen, X. Lin, H. Wang, and B. Chen, "Incorporating D2D to current cellular communication system," Mobile Information Systems, vol. 2016, 2732917, pp. 1-7, Mar. 2016.
  16. J. So, "Opportunistic feedback with multiple classes in wireless systems," IEEE Commun. Lett., vol. 13, no. 6, pp. 384-386, 2009. https://doi.org/10.1109/LCOMM.2009.081851
  17. H. Li, Q. Guo, and D. Huang, "Throughput analysis of opportunistic feedback for downlink multiuser diversity with capture effect," IEEE Commun. Lett., vol. 16, no. 1, pp. 44-46, Jan. 2012. https://doi.org/10.1109/LCOMM.2011.111011.111751
  18. R. Fan and H. Jiang, "Optimal multi-channel cooperative sensing in cognitive radio networks," IEEE Trans.Wireless Commun., vol. 9, no. 3, pp. 1128-1138, Mar. 2010. https://doi.org/10.1109/TWC.2010.03.090467
  19. C. T. Lau and C. Leung, "Capture models for mobile packet radio networks," IEEE Trans. Commun., vol. 40, no. 1, pp. 917-925, May 1992. https://doi.org/10.1109/26.141457
  20. B. Bai, W. Chen, and Z. Cao, "Low-complexity hierarchical spectrum sharing scheme in cognitive radio networks," IEEE Commun. Lett., vol. 13, no. 10, pp. 770-772, Oct. 2009. https://doi.org/10.1109/LCOMM.2009.091383
  21. N. Han and H. Li, "Cooperative spectrum sensing with location information," IEEE Trans. Veh. Technol., vol. 61, no. 7, pp. 3015-3024, Sep. 2012. https://doi.org/10.1109/TVT.2012.2202410
  22. C. G. Wagner, "Surjections, differences, and binomial lattices," Studies in Applied Mathematics, pp. 15-27, 1994.
  23. S. Boyd and L. Vandenberghe, Convex Optimization, Cambridge University Press, Cambridge, MA, 2004.
  24. N.-Y. Ma and F. Liu, "A novel analytical scheme to compute the n-fold convolution of exponential-sum distribution functions," Elsevier Applied Mathematics and Computation, vol. 158, no. 1, pp. 225-235, Oct. 2004. https://doi.org/10.1016/j.amc.2003.08.087