P sub e performance of coherent M-ary PSK systems in an impulsive and Gaussian noise environment

The paper derives the general probability-of-error expressions of coherent M-ary PSK (M = 2, 4, 8, 16) systems in the presence of both impulsive and Gaussian noise. The impulsive and Gaussian channel disturbance is a first-order approximation to operational multichannel satellite and terrestrial microwave systems in which out-of-band intermodulation noise may be present in addition to front-end Gaussian noise. Numerical results indicate that a well-defined threshold region exists, above which the effect of the impulsive noise upon the system performance predominates.