Signal design for binary data transmission through channels perturbed by impulsive noise

The use of long signals for combatting impulsive noise in binary data transmission systems is investigated in this paper. Two methods are proposed in which each data symbol is transmitted by means of a sequence of short pulses. These sequences of pulses are assumed to overlap in the channel so that an increase in the duration of the transmitted signals does not lead to a reduction in the transmission rate. Despite this signal overlap, the system can be designed so as to avoid any intersymbol interference at the detector output. The signal design methods proposed in this paper turn out to be more powerful than the methods found in the literature, both in terms of design and in terms of implementation.