Noise analysis of QAM signal transmission in the AWGN channel using Haar transform

We propose a new structure for a quadrature amplitude modulated transmission using the Haar transform to reduce the noise in the channel. The corresponding points of the symbols in a rectangular signal constellation are Haar-transformed and sent to the channel, and the received signals are inverse H...

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Bibliographic Details
Published inIECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468) Vol. 2; pp. 1278 - 1281 Vol.2
Main Authors Boo Hee Nam, Min Hyuk Park, Jeong Ha Kim, Chul Hong Shin, Hak No Lee
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
Additive white noise
Amplitude modulation
Analytical models
AWGN channels
Constellation diagram
Gaussian noise
Noise level
Noise reduction
Quadrature amplitude modulation
Signal analysis
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Summary:We propose a new structure for a quadrature amplitude modulated transmission using the Haar transform to reduce the noise in the channel. The corresponding points of the symbols in a rectangular signal constellation are Haar-transformed and sent to the channel, and the received signals are inverse Haar transformed to retrieve the original signals. By varying the gain of the Haar transform, we can receive the noise-reduced signals from the channel which is assumed to corrupt the signal by an additive white Gaussian noise (AWGN). We analyze the probability of bit error and simulate the model to show the validity.
ISBN:0780379063
9780780379060
DOI:10.1109/IECON.2003.1280237