An Improved Method for ASEP Evaluation over Fading Channels Based on Q-Function Approximation

Aleksandar V. Markovic, Zoran H. Peric, Stefan R. Panic, Petar C. Spalevic, Bojan P. Prlincevic

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


In this paper, capitalizing on novely introduced interval approximation of Q-function, we have presented simple and tight approximation for the evaluation of the average symbol error probability (ASEP) over fading channels. First, comparison to other known Q-function closed-form approximations has been performed, and it has been shown that accuracy improvement has been achieved by using proposed interval approximation in whole range of input values. Further, it has been shown that by using proposed approximation, values of ASEP for some applied modulation formats could be efficiently and accurately evaluated when transmission over fading channels is observed. Also has been shown that than by using proposed approximation, ASEP measures are bounded more closely than by using other known Q-function closed-form approximations.

Original languageEnglish
Pages (from-to)777-784
Number of pages8
JournalIETE Journal of Research
Issue number6
Publication statusPublished - 2 Nov 2018
Externally publishedYes


  • Bit error rate
  • Function approximation
  • Gaussian distribution
  • Modulation
  • Nakagami distribution
  • Wireless communication

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science Applications
  • Electrical and Electronic Engineering

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