Title :
Impact of non-Gaussian impulsive noise on the performance of high-level QAM
Author :
Seo, Jong-Soo ; Cho, Sung-joon ; Feher, Kamilo
Author_Institution :
Int. Datacasting Corp., Ottawa, Ont., Canada
fDate :
5/1/1989 12:00:00 AM
Abstract :
The impact of non-Gaussian impulse noise (Middleton´s class A noise) combined with Gaussian thermal noise on the performance of high-level QAM (quadrature amplitude modulation) (e.g., 16, 64, and 256 QAM) systems is analyzed. The P(e) (probability of error) performance of the system is evaluated in terms of CNR (carrier-to-noise ratio), impulsive index (A) of the noise, and power ratio of the Gaussian noise to the impulsive noise ( Gamma ´). It is shown that, in the high-level QAM, non-Gaussian impulsive noise degrades the system performance significantly, even at high CNR. It is also found that an upper bound on the error probability exists for Gamma ´>
Keywords :
amplitude modulation; interference (signal); noise; CNR; Middleton class A noise; carrier-to-noise ratio; high-level QAM; impulsive index; non-Gaussian impulsive noise; power ratio; probability of error; system performance; Additive noise; Electromagnetic interference; Error probability; Frequency shift keying; Gaussian noise; Noise generators; Performance analysis; Quadrature amplitude modulation; Signal to noise ratio; Working environment noise;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
