Bit error rate for rectangular QAM with arbitrary constellation mapping in Nakagami-m channels: Research Articles

  • Authors:

  • Hong Xu;Mustapha Benjillali;Leszek Szczeciński

  • Affiliations:

  • TenXc Wireless Inc. Ottawa, Canada;Institut National de la Recherche Scientifique INRS-EMT, 800 de la Gauchetiére O Suite 6900, Montréal, H5A 1K6, Canada;Institut National de la Recherche Scientifique INRS-EMT, 800 de la Gauchetiére O Suite 6900, Montréal, H5A 1K6, Canada

  • Venue:
  • Wireless Communications & Mobile Computing
  • Year:
  • 2008

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Abstract

We present closed-form expressions for the bit error rate (BER) of rectangular quadrature amplitude modulation (QAM) in Nakagami-m fading channels. The presented formulas, which are valid for arbitrary bits-to-symbols mapping, thus may be used when non-Gray mapping is employed, are particularly useful in the low signal-to-noise ratio (SNR) range and/or for small values of the parameter m. The advantage of the proposed expressions over the known bounding techniques is illustrated through numerical simulations. Copyright © 2006 John Wiley & Sons, Ltd.