Optimal Sensing Time Allocation for Energy Efficient Data Transmission in Amplify-Forward Cognitive Relay Assisted Network

  • Sutanu GhoshEmail author
  • Aditya Chaudhuri
  • Sayantani Ghosh
Conference paper
Part of the Lecture Notes in Networks and Systems book series (LNNS, volume 5)


In this chapter, the main goal is to enhance the energy efficient (EE) data transmission for an optimum value of sensing time in Amplify-and-forward   (AF) relay assisted cognitive radio network. Performance of the system has been studied in standard optimization framework under the constraints imposed on probability of detection threshold and the limitation of total power budget. Based on the mathematical model, analytical output is shown for various system parameters like, false alarm probability, throughput and energy efficiency. Furthermore, such evaluation illustrates the existence of an optimal sensing time, which improves the energy efficiency of the system.


Cognitive radio network AF relay Spectrum sensing Energy efficiency 


  1. 1.
    FCC, ET Docket No. 03-222 Notice of proposed rule making and order, 2003 Dec.Google Scholar
  2. 2.
    Akyildiz I F, Lee W Y, Vuran M C, Mohanty S.: NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey. Computer networks. 2006 Sep; 50(13):2127–2159.Google Scholar
  3. 3.
    Mitola III J, Maguire Jr G Q.: Cognitive radio: making software radios more personal. IEEE Personal Communications. 1999 Aug; 6(4):13–18.Google Scholar
  4. 4.
    Tang L, Chen Y, Hines E L, Alouini M S.: Effect of primary user traffic on sensing-throughput tradeoff for cognitive radios. IEEE Transactions on Wireless Communications. 2011 Apr; 10(4):1063–1068.Google Scholar
  5. 5.
    Atapattu S, Tellambura C, Jiang H.: Energy detection based cooperative spectrum sensing in cognitive radio networks. IEEE Transactions on Wireless Communications. 2011 Apr; 10(4):1232–1241.Google Scholar
  6. 6.
    Tang H.: Some physical layer issues of wide-band cognitive radio systems. In New frontiers in dynamic spectrum access networks. First IEEE international symposium on DySPAN 2005. Nov (pp. 151–159).Google Scholar
  7. 7.
    Li X, Hu F, Zhang H, Shi C.: Two-branch wavelet denoising for accurate spectrum sensing in cognitive radios. Telecommunication Systems. 2014 Sep; 57(1):81–90.Google Scholar
  8. 8.
    Cabric D B.: Cognitive radios: System design perspective. ProQuest; 2007.Google Scholar
  9. 9.
    Dobre O A, Rajan S, Inkol R.: Joint signal detection and classification based on first-order cyclostationarity for cognitive radios. EURASIP Journal on Advances in Signal Processing. 2009 Mar: 1–12.Google Scholar
  10. 10.
    Haykin S, Thomson D J, Reed J H.: Spectrum sensing for cognitive radio. Proceedings of the IEEE. 2009 May; 97(5):849–877.Google Scholar
  11. 11.
    Huang S, Chen H, Zhang Y, Zhao F.: Energy-efficient cooperative spectrum sensing with amplify-and-forward relaying. IEEE Communications Letters. 2012 Apr; 16(4):450–453.Google Scholar
  12. 12.
    Eryigit S, Bayhan S, Tugcu T.: Energy-efficient multichannel cooperative sensing scheduling with heterogeneous channel conditions for cognitive radio networks. IEEE Transactions on Vehicular Technology. 2013 Feb; 62(6): 2690–2699.Google Scholar
  13. 13.
    Li L, Zhou X, Xu H, Li G Y, Wang D, Soong A.: Energy-Efficient Transmission in Cognitive Radio Networks. IEEE Consumer Communications and Networking Conference (CCNC). 2010 Jan: pp. 1–5.Google Scholar
  14. 14.
    Huang S, Chen H, Zhang Y.: Optimal power allocation for spectrum sensing and data transmission in cognitive relay networks. IEEE Wireless Communications Letters. 2012 Feb; 1(1):26–29.Google Scholar
  15. 15.
    Li L, Zhou X, Xu H, Li G Y, Wang D, Soong A.: Simplified relay selection and power allocation in cooperative cognitive radio systems. Wireless Communications, IEEE Transactions on. 2011 Jan; 10(1):33–36.Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  • Sutanu Ghosh
    • 1
    Email author
  • Aditya Chaudhuri
    • 2
  • Sayantani Ghosh
    • 3
  1. 1.Indian Institute of Engineering Science and Technology, ShibpurHowrahIndia
  2. 2.Dr. Sudhir Chandra Sur Degree Engineering CollegeKolkataIndia
  3. 3.Jadavpur UniversityKolkataIndia

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