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Impulsive noise error correction in 16-OFDM for narrowband power line communication

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2 Author(s)
Anil Mengi ; Institute for Experimental Mathematics, Duisburg-Essen University, Ellernstr. 29, D-45326, Germany ; A. J. Han Vinck

Orthogonal frequency division multiplexing (OFDM) with a small number of subcarriers (les 64) is shown to be promising in the narrowband power line communication (PLC) when the peak-to-average power ratio is reduced to the CENELEC standards. Although many authors studied the performance of the OFDM systems under the impulsive noise, their considerations are mostly restricted to OFDM systems with a large number of subcarriers. In that case, discrete Fourier transform (DFT) spreads the impulsive noise in such a way that its distribution in the frequency domain can be approximated as Gaussian. If the number of subcarriers is small, these methods can be hardly used. We describe an iterative algorithm for correcting the impulsive noise errors for the OFDM transmission with a small number of subcarriers. Simulation results for a 16-OFDM-QPSK systems show that the influence of impulsive noise can be essentially reduced.

Published in:

Power Line Communications and Its Applications, 2009. ISPLC 2009. IEEE International Symposium on

Date of Conference:

March 29 2009-April 1 2009