ABSTRACT
This chapter describes the modulation scheme that uses the modulation of the phase lightwave carrier; the change of the phase during a one-bit state would be continuous, that is, two frequencies, hence the term continuous-phase frequency-shift keying (CPFSK). When the two frequency signal components are orthogonal, then the CPFSK is considered the minimum-shift keying (MSK). This scheme along with the generation of modulated signals, propagation, and detection schemes is presented in this chapter.
