A Large Time-Bandwidth Product Signaling Technique for Nonwhite Noise Channels

AnM-ary, large time-bandwidth product signal design technique is described which is useful for signaling in channels characterized by narrow-band interference and/or wide-band noise impulses. Diversity is also provided, thereby making it a useful signaling technique for dispersive channels. The motivations for choosing this signal format are explained, and design procedures, with two candidate signal designs, are given. The performance of a fast-fast-Fourier-transform-based receiver, which employs an excision algorithm for reducing the effects of narrow-band interference, is investigated through computer simulation.