Performance analysis of 16QAM system in a composite electromagnetic interference environment

In this paper, the analysis model of a composite electromagnetic interference environment is proposed, and the composite interference consists of three types, i.e., impulse, sinusoidal, and rectangular type. We have derived the p.d.f of the amplitude of the composite interference. And then we have evaluated the performance of a 16QAM system in a composite interference environment. From the results, it is known that when the impulse type interference is weaker than the others, the shape of the p.d.f is dominantly governed by the power component ratio of sinusoidal and rectangular type interference. On the other hand, when the impulse type interference is stronger, the effect of the other two interferences becomes insignificant. Also, it is shown that the smaller both the impulsive index (A) and the mean power component ratio (/spl Gamma/´) in impulse type interference are, the worse the performance of the 16QAM system is.