ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
권호 표지
DOI QR코드

DOI QR Code

Robust Energy Efficiency Power Allocation for Uplink OFDM-Based Cognitive Radio Networks

  • Zuo, Jiakuo (Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, Southeast University) ;
  • Dao, Van Phuong (Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, Southeast University) ;
  • Bao, Yongqiang (School of Communication Engineering, Nanjing Institute of Technology) ;
  • Fang, Shiliang (Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, Southeast University) ;
  • Zhao, Li (Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, Southeast University) ;
  • Zou, Cairong (Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, Southeast University)
  • Received : 2013.06.18
  • Accepted : 2013.10.26
  • Published : 2014.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper studies the energy efficiency power allocation for cognitive radio networks based on uplink orthogonal frequency-division multiplexing. The power allocation problem is intended to minimize the maximum energy efficiency measured by "Joule per bit" metric, under total power constraint and robust aggregate mutual interference power constraint. However, the above problem is non-convex. To make it solvable, an equivalent convex optimization problem is derived that can be solved by general fractional programming. Then, a robust energy efficiency power allocation scheme is presented. Simulation results corroborate the effectiveness of the proposed methods.

Keywords

References

  1. D. Feng et al., "A Survey of Energy-Efficient Wireless Communications," IEEE J. Commun. Surveys Tutorials, vol. 15, no. 1, 2013, pp. 167-178. https://doi.org/10.1109/SURV.2012.020212.00049
  2. J.L. Mao et al., "Energy Efficiency Optimization for OFDMBased Cognitive Radio Systems: A Water-Filling Factor Aided Search Method," IEEE Trans. Wireless Commun., vol. 12, no. 5, May 2013, pp. 2366-2375. https://doi.org/10.1109/TWC.2013.013013.121013
  3. Y. Wang et al., "Optimal Energy-Efficient Power Allocation for OFDM-Based Cognitive Radio Networks," IEEE Commun. Lett., vol. 16, no. 9, Sept. 2012, pp.1420-1423. https://doi.org/10.1109/LCOMM.2012.070512.120662
  4. Z. Hasan et al., "Energy-Efficient Power Allocation in OFDMBased Cognitive Radio Systems: A Risk-Return Model," IEEE Trans. Wireless Commun., vol. 8, no. 12, Dec. 2009, pp. 6078-6088. https://doi.org/10.1109/TWC.2009.12.090394
  5. M. Ge and S. Wang, "Energy-Efficient Power Allocation for Cooperative Relaying Cognitive Radio Networks," IEEE Wireless Commun. Netw. Conf., Shanghai, China, Apr. 7-10, 2013, pp. 691-696.
  6. W. Shi and S. Wang, "Energy-Efficient Resource Allocation in Cognitive Radio Systems," IEEE WCNC, Shanghai, China, Apr. 7-10, 2013, pp. 4618-4623.
  7. G. Bansal, M.J. Hossain, and V.K. Bhargava, "Adaptive Power Loading for OFDM-Based Cogntive Radio Systems with Statistical Interference Cosntraint," IEEE Trans. Wireless Commun., vol. 10, no. 9, Sept. 2011, pp. 2786-2791. https://doi.org/10.1109/TWC.2011.072011.100397
  8. J. Wang, G, Scutari, and D.P. Palomar, "Robust MIMO Cognitive Radio via Game Theory," IEEE Trans. Signal Process., vol. 59, no. 3, Mar. 2011, pp. 1183-1201. https://doi.org/10.1109/TSP.2010.2092773
  9. Y. Zhang, E. DallAnese, and G.B. Giannakis, "Distributed Optimal Beamformers for Cogntive Radios Robust to Channel Uncertainties," IEEE Trans. Signal Process., vol. 60, no. 12, Dec. 2012, pp. 6495-6508. https://doi.org/10.1109/TSP.2012.2218240
  10. S. Boyd and L. Vandenberghe, Convex Optimization, Cambridge, U.K.: Cambridge University Press, 2004, p. 655.
  11. J.P. Crouzeix, J.A. Ferland, and S. Schaible, "An Algorithm for Generalized Fractional Programs," J. Optimization Theory Appl., vol. 47, no. 1, 1985, pp. 35-49. https://doi.org/10.1007/BF00941314
  12. R.A. Horn and C.R. Johnson, Matrix analysis, New York: Cambridge University Press, 1985, pp. 79-85.

Cited by

  1. Robust energy efficiency power allocation for relay-assisted uplink cognitive radio networks vol.24, pp.4, 2014, https://doi.org/10.1007/s11276-016-1385-x