Error probability of QASK with rectangular and circular symbol constellations in the presence of intersymbol quadrature channel and adjacent channel interference
Abstract
In this paper, a study is conducted of the effect of intersymbol, quadrature channel and adjacent channel interference (in addition to Gaussian noise) on the error probability of Mary quadrature amplitude modulation (QAM) with M = 4, 16 symbols and phase shift keying (PSK) with M = 4, 8 and 16 symbols, which are special cases of quadrature amplitude shift keying (QASK) with a rectangular and circular constellation. The transfer function of the system for the main signal is a raised cosine with excess bandwidth beta, and the receiver filter is matched to the transmitter filter. The interfering signal is of the same type as the main signal, but its carrier frequency differs from the carrier frequency of the main signal by the frequency fs. In this paper, the necessary formulas for the computation of error probability in the presence of frequency selective fading are also presented.
 Publication:

IEE Proceedings F: Communications Radar and Signal Processing
 Pub Date:
 April 1984
 Bibcode:
 1984IPCRS.131..194K
 Keywords:

 Bit Error Rate;
 Channel Noise;
 Intersymbolic Interference;
 Phase Shift Keying;
 Pulse Amplitude Modulation;
 Nyquist Frequencies;
 Probability Distribution Functions;
 Pulse Communication;
 Signal To Noise Ratios;
 Communications and Radar