Performance of HSR and QPP-based interleavers for turbo coding on power line communication systems

In this paper, the performance of different type and length interleavers for turbo codes is analyzed in the context of power line communication systems. This system typically operates in very noisy environments; the noise, in this channel, is a combination of colored, narrow band and impulsive noises; it has also strong amplitude attenuations. The digital modulation frequently employed in power line communication to counteract the channel's noise effects is the orthogonal frequency division multiplexing due to its high spectral efficiency and robustness in multipath fading environments; hence, it is also considered in our experimentation. We report the performance of turbo codes with the two types of interleavers: the high-spread random and the based quadratic permutation polynomial. The constituent codes are part of the 3GPP standard. Finally, it is used a punctured matrix in order to achieve a coding rate of 1/2. The performance is evaluated in terms of bit error rate, through the way of simulations.