Optimal Receiver of Digital Communication Systems

From earlier chapters, we recall the performance of digital communication systems to be evaluated by bit error rate (BER). Influenced by the development of modern probability theory and statistical decision theory, communication theory has been developed to evaluate the performance of digital communication systems and to design more effective systems meeting the need from engineering. The first subject that we want to know is how to design an optimal receiver for a digital communication system given a signaling method being determined in advance. In other words, we shall develop a systematic way to design a mechanism of digital communication receiver that can determine whether “1” or “0” to be transmitted.