Title :
Performance evaluation of a 512-QAM system in distorted channels
Author :
Mathiopoulos, P. Takis ; Feher, K.
Author_Institution :
University of Ottawa, Digital Communications Group, Department of Electrical Engineering, Ottawa, Canada
fDate :
4/1/1986 12:00:00 AM
Abstract :
The effects of linear channel distortions on the performance of a 512-QAM system are studied. Performance degradation due to linear, parabolic sinusoidal amplitude and group delay channel distortions are calculated by means of computer simulation. It is shown that sinusoidal amplitude and linear group delay distortions degrade most significantly the system performance. Comparison of the results with that of a same symbol rate and as well as a same bit rate 256-QAM system are also given.
Keywords :
amplitude modulation; digital communication systems; digital simulation; electric distortion; telecommunication channels; 256-QAM system; 512-QAM system; computer simulation; distorted channels; group delay channel distortions; linear channel distortions; linear distortion; parabolic distortion; sinusoidal amplitude distortion; symbol rate;
Journal_Title :
Communications, Radar and Signal Processing, IEE Proceedings F
DOI :
10.1049/ip-f-1.1986.0031
