Pulse time hopping for multiaccess communications with a concatenated code

An outer code decoding technique called vector symbol decoding has been shown able to readily recognize correct symbol value choices on lists supplied by an inner code decoder. Pulse-time hopping multiaccess communication (and related fast frequency hopping) has a feature that there is a high likelihood the correct value appears on a short list. Under slow fading conditions, time-hopped pulses belonging to a particular sender are highly correlated as to shape and amplitude relative to interferers. An analysis shows that the combination of list decoding of pulse-time-hopped inner symbols with vector symbol decoding is highly effective.