TERMINATION OF CODED OR UNCODED MODULATION WITH PATH-ORIENTED DECODER

摘要

A portion of signal points that appear at predetermined positions in a signalpoint stream and that benefit less from a particular formof error immunity - e.g., conversion gain - are transmitted in such a way thattheir robustness against errors is at least as great as that ofthe signal point that benefit more therefrom. In preferred packet transmissionembodiments of the invention, the ending signal points of apacket are transmitted using a signal point constellation that has fewersignal points than the constellation that is used for the other signalpoints in the packet.