Um Novo Método para o Cálculo da Probabilidade de Erros de Bit de Esquemas de Modulação QAM Sujeitos ao Desvanecimento Rayleigh

  • Waslon Terllizzie A. Lopes
  • Francisco Madeiro
  • Marcelo Sampaio de Alencar

Abstract

This paper presents a new method for determining exact expressions for the bit error probability (BEP) of modulation schemes subject to Rayleigh fading. In this method the Rayleigh fading channel is seen as an additive noise channel whose noise is modeled as the ratio between a Gaussian random variable (r.v.) and a Rayleigh r.v. The method is based on the use of the cumulative density function of that additive noise to obtain closed-form expressions for the BEP of QAM (quadrature amplitude modulation) schemes, subject to fading. In particular, the proposed method is used to obtain new, exact and closed-form expressions for the BEP of 16-QAM, 64-QAM and 256-QAM. These expressions are shown to be in agreement with simulation results.
Published
18-06-2015
How to Cite
Terllizzie A. Lopes, W., Madeiro, F., & Sampaio de Alencar, M. (2015). Um Novo Método para o Cálculo da Probabilidade de Erros de Bit de Esquemas de Modulação QAM Sujeitos ao Desvanecimento Rayleigh. Journal of Communication and Information Systems, 19(2). https://doi.org/10.14209/jcis.2004.1
Section
Regular Papers