OFDM Transmission Corrupted by Impulsive Noise

Abstract

OFDM is a promising technique being used for bandwidth efficient communication over the power-line channel. It provides excellent possibilities to adapt to the frequency-selectivity of the channel. The influence of impulsive noise on the OFDM transmission is not well analyzed yet. We choose Middletons Class A man-made noise model to statistically describe the impulsive interference and study the capacity of the additive impulsive noise channel. With the obtained results we will discuss the loss in performance, if the conventional OFDM-receiver designed for Gaussian noise is used for reception on such a channel. In the second part we describe a new iterative algorithm suited to suppress impulse-like interference.