Title :
A decision-feedback phase-tracking receiver for continuous phase modulation
Author_Institution :
Sch. of Eng. Sci., Simon Fraser Univ., Burnaby, BC, Canada
fDate :
4/1/1997 12:00:00 AM
Abstract :
In this letter, a new recursive structure of a decision-feedback (DF) phase-tracking receiver for continuous phase modulation (CPM) is derived. This receiver uses the previously detected symbols to continuously estimate the initial phase in the current symbol and thus makes optimum coherent detection. The theoretical and simulation analyses of the error performance are given. It is shown that the BER performance of binary continuous phase frequency-shift keying (2CPFSK) and raised cosine (2RC) with a small modulation index is very close to the ideal bound, and the BER performance of GMSK is better than any previously known noncoherent detection
Keywords :
continuous phase modulation; error statistics; frequency shift keying; minimum shift keying; phase estimation; radio receivers; signal detection; synchronisation; tracking; 2CPFSK; 2RC; BER performanc; GMSK; binary continuous phase frequency-shift keying; continuous phase modulation; decision-feedback phase-tracking receiver; error performance; initial phase; modulation index; optimum coherent detection; previously detected symbols; raised cosine; recursive structure; Analytical models; Bit error rate; Continuous phase modulation; Filters; Gaussian noise; Maximum likelihood estimation; Phase detection; Phase estimation; Phase modulation; Receivers;
Journal_Title :
Communications, IEEE Transactions on
