Open AccessBit error rate for rectangular QAM with arbitrary constellation mapping in Nakagami‐ m channels
Author(s) -
Xu Hong,
Benjillali Mustapha,
Szczeciński Leszek
Publication year - 2008
Publication title -
wireless communications and mobile computing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.42
H-Index - 64
eISSN - 1530-8677
pISSN - 1530-8669
DOI - 10.1002/wcm.437
Subject(s) - nakagami distribution , computer science , qam , quadrature amplitude modulation , algorithm , bounding overwatch , bit error rate , fading , modulation (music) , gray code , telecommunications , physics , acoustics , artificial intelligence , decoding methods
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 numericalsimulations. Copyright © 2006 John Wiley & Sons, Ltd.