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Journal of Applied Sciences
  Year: 2009 | Volume: 9 | Issue: 6 | Page No.: 1159-1164
DOI: 10.3923/jas.2009.1159.1164
 
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A Novel Constellation with Different Noises in Discrete Multitone System

S.G. Maghrebi, M. Lotfizad and M. Ghanbari

Abstract:
In this study, a new constellation, the Non-Rectangular Quadrature Amplitude Modulation (NQAM) instead of Quadrature Amplitude Modulation (QAM) in the Discrete Multi-Tone (DMT) system is presented that has better performances. These constellations, with the same average power, have been applied to six standard channels (CSA No. 1 through CSA No. 6). The AWGN and burst noise are applied to these channels separately. Based on the simulation results, the NQAM constellation has a better performance, in terms of the Bit Error Rate (BER), with respect to the conventional QAM constellation, especially for high SNRs, without any increase in the computational complexity.
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How to cite this article:

S.G. Maghrebi, M. Lotfizad and M. Ghanbari, 2009. A Novel Constellation with Different Noises in Discrete Multitone System. Journal of Applied Sciences, 9: 1159-1164.

DOI: 10.3923/jas.2009.1159.1164

URL: https://scialert.net/abstract/?doi=jas.2009.1159.1164

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