Impulse noise mitigation strategies for multicarrier modulation

Short time-duration and high magnitude noise, taking on the form of time-domain impulse noise over copper twisted-pairs or multipath fading in wireless communication, can potentially be the limiting impairment on performance in many high-speed data transmission applications. Coding techniques are presented, designed specifically for multicarrier modulated systems to mitigate the effects of such impairment. Several coding combinations, involving soft error protection, in addition to hard forward error correction, are considered. The techniques can be applied with minor variation to a number of possible applications employing multicarrier modulation, including wireless digital audio broadcasting (DAB) systems and high-speed data/video transmission over coaxial cables