engleski

Noise Squared Norm in OFDM Systems Interfered by Impulse Noise

In this paper we derive exact analytical expressions for the noise squared norm in the frequency domain for Orthogonal Frequency-Division Multiplex (OFDM) considering the two generic scenarios: i) OFDM signal is affected by M randomly positioned Gaussian impulses within the L-sized frame and ii) OFDM signal is affected by the Gaussian white noise (background noise) and M randomly positioned Gaussian impulses within the L-sized frame. The reason for analysis of the noise squared norm we have found when tried to accurately evaluate the performance related to distribution of errors per OFDM frame as well as the frame error rate. Numerical results obtained for the noise squared distribution are compared with Monte Carlo simulations showing a full agreement.

impulse noise; Gaussian white noise; squared norm; OFDM;

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