Abstract: This paper introduces the history of Trellis-coded modulation (TCM). An optimum scheme based on the predicted SNR and the prediction error variance is ...

Power and bandwidth are limited resources in modern communication system and their efficient exploitation fundamentally involves an increase in the complexity of a communication system. While there ...

NHK has been studying a multi-level coded modulation scheme for expanding satellite transmission capacity. It can bring out the transmission performance of multi ...