Energy Detection with Diversity Reception

  • Sanjeewa P. Herath Huawei Technologies Canada Co. Ltd
  • Nandana Rajatheva The Centre forWireless Communications, University of Oulu, Finland
  • Tho Le-Ngoc The Department of Electrical and Computer Engineering, McGill University
  • Chintha Tellambura The Department of Electrical and Computer Engineering, University of Alberta

Abstract

We characterize the performance of energy detector (ED) over square-law, square-law selection, and switch-and-stay diversity combining schemes. The exact average probabilities of a miss (Pm), and a false alarm (Pf) are derived in closed-form. To derive Pm for versatile Nakagami-m and Rician fading channels, a twofold approach, using the probability density function (PDF) and the moment generating function (MGF), is applied. Using the PDF method, the achievable diversity order over the Nakagami-m channel is derived. However, this method becomes intractable when analyzing Pm of the aforementioned combiners in Rician channels, but the MGF method can handle this case. Our analysis helps to quantify the performance gains of ED due to diversity reception. Theoretical derivations are verified through numerical Monte-Carlo simulation results.

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References

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Published
2017-03-31
How to Cite
P. HERATH, Sanjeewa et al. Energy Detection with Diversity Reception. Journal of Science and Technology: Issue on Information and Communications Technology, [S.l.], v. 3, n. 1, p. 20-28, mar. 2017. ISSN 1859-1531. Available at: <http://ict.jst.udn.vn/index.php/jst/article/view/34>. Date accessed: 29 may 2020. doi: https://doi.org/10.31130/jst.2017.34.