A New Technique of Error-Rate Evaluation in a Wireless Environment With Arbitrary Interference and AWGN

In this paper, we present a new technique of the symbol error-rate evaluation for quadrature amplitude modulation in communication systems equipped with conventional detectors designed for additive white Gaussian noise (AWGN) model of interference, but operating over a fading environment with arbitrary interference and AWGN. In contrast to many reported methods, the given technique is applicable to arbitrary interference and fading models, and it can efficiently be implemented numerically. These facts make the derived result especially convenient for practical purposes.