The Fisher–Snedecor F Distribution: A Simple and Accurate Composite Fading Model

Seong Ki Yoo, Simon Cotton, Paschalis Sofotasios, Michail Matthaiou, Mikko Valkama, George Karagiannidis

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Abstract

We consider the use of the Fisher-Snedecor F distribution, which is defined as the ratio of two chi-squared variates, to model composite fading channels. In this context, the root-mean-square power of a Nakagami-m signal is assumed to be subject to variations induced by an inverse Nakagamim random variable. Comparisons with physical channel data demonstrate that the proposed composite fading model provides as good, and in most cases better, fit to the data compared to the generalized-K composite fading model. Motivated by this result, simple novel expressions are derived for the key statistical metrics and performance measures of interest.
Original languageEnglish
Pages (from-to)1661 - 1664
Number of pages4
JournalIEEE Communications Letters
Volume21
Issue number7
Early online date24 Mar 2017
DOIs
Publication statusPublished - Jul 2017
Externally publishedYes

Bibliographical note

This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/

Keywords

  • Nakagami-m fading signal
  • Statistical Anaysis
  • Fisher-Snedecor F distribution
  • chi-squared variates
  • inverse Nakagamim random variable

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    Yoo, S. K., Cotton, S., Sofotasios, P., Matthaiou, M., Valkama, M., & Karagiannidis, G. (2017). The Fisher–Snedecor F Distribution: A Simple and Accurate Composite Fading Model. IEEE Communications Letters, 21(7), 1661 - 1664 . https://doi.org/10.1109/lcomm.2017.2687438