International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

Accuracy Analysis of 5-Bit Data and Decision Fusion Strategies in Cognitive Radio Networks

Author Affiliations

  • 1 Department of Electronics and Communication, Acropolis Institute of Technology And Research, Indore, INDIA

Res. J. Engineering Sci., Volume 3, Issue (10), Pages 7-15, October,26 (2014)

Abstract

Cognitive radio allows unlicensed users to access licensed frequency bands through dynamic spectrum access so as to reduce spectrum scarcity. This requires intelligent spectrum sensing techniques like co-operative sensing which makes use of information from number of users. This paper investigates the use of energy detector and its simulation in MATLAB for licensed user detection. Simulation results show that implementing cooperative spectrum sensing help in better performance in terms of detection. Quantized combination scheme provides a better compromise between detection performance and complexity. This paper is further extended to the 5 bit data and decision fusion. Simulation results shows the accuracy of 5-bit decision at variable SNR values.

References

  1. Rakesh Rajbanshi, OFDM-Based Cognitive Radio for DSA Networks, Technical Report ITTC-FY2008-TR 31620-05; September (2007)
  2. Haykin S., Cognitive radio Brain-empowered wireless communications, IEEE J. Selected. Areas of Communications, 23(2), 201-220, (2006)
  3. S.M. Kay, Optimal stopping rules, 2. Prentice Hall, (1998)
  4. Urkowitz H., Energy detection of unknown deterministic signals, Proc. IEEE, 55(4), 523 531 (1967)
  5. Zeng Y., Liang Y.C., Hoang A.T. and Zhang R., A review on spectrum sensing for cognitive radio: Challenges and solutions, EURASIP Journal on Advances in Signal Processing, 115, (2010)
  6. Peh E. and Liang Y.C., Optimization for cooperative sensing in cognitive radio networks, in Proceedings of the IEEE Wireless Communications and Networking Conference (WCNC 07), 2732, Hong Kong, March (2007)
  7. Ashish P. and Linnartz J.P., Performance analysis of primary user detection in a multiple antenna cognitive radio, IEEE International Conference on Communications7, 6482-6486 (2007)
  8. J. Ma and Y. Li., Soft combination and detection for cooperative spectrum sensing in cognitive radio networks, in Proc., IEEE Global Telecomm. Conf.,(2007)