Digital communication in the presence of impulsive noise

A narrow band, Gaussian-plus-shot noise process has been chosen as an impulsive noise model. The shot noise process has been generalized to control the randomness of arrival of impulses. Some first order statistics, including Amplitude Probability Distribution (APD) and Average Level Crossing Rate (ALCR), have been evaluated through analysis and simulation. The performance of a linear matched filter receiver operating in impulsive noise for various modulation schemes has been extensively studied. The modulation schemes considered include BPSK, QPSK, MSK, DPSK, and BFSK. The results indicate that the performance of a linear receiver can be severely degraded even with a small impulsive noise component. Also, the well known 3 dB advantage of DPSK over BFSK does not necessarily hold in an impulsive noise environment. A variety of numerical techniques for evaluating the probability of error performance of a linear receiver for coherent modulation has been surveyed, and the range of model parameters for which each numerical technique is applicable has been determined.