General performance analysis of M-PSK and M-QAM wireless communications applied to OFDMA interference

Accurate technique is presented to analyze the symbol error rate of coherent M-QAM and M-PSK modulation schemes. Transmission happens in the presence of additive white Gaussian noise, different types of fading channels have effect on analyzed signal, and arbitrary number interference sources are modeled. M-QAM and M-PSK symbol error rate results are extended for OFDMA transmission with equally spaced subcarriers of interferers.