Title :
Coding CPFSK for differential demodulation
Author :
Griffin, Anthony ; Taylor, Desmond P.
Author_Institution :
Dept. of Electr. & Electron. Eng., Canterbury Univ., Christchurch, New Zealand
fDate :
5/1/2000 12:00:00 AM
Abstract :
A model is developed for finding codes for differentially demodulated continuous phase frequency-shift keying with modulation index h=1/M, where M is the size of the symbol alphabet. The results of codes searches show that there is very little loss in squared Euclidean distance when comparing differential codes with coherent codes
Keywords :
codes; continuous phase modulation; demodulation; frequency shift keying; modulation coding; CPFSK coding; DCPFSK; code search; coherent codes; continuous phase frequency-shift keying; differential codes; differential demodulation; differentially demodulated CPFSK; modulation index; squared Euclidean distance; symbol alphabet size; AWGN; Additive white noise; Decoding; Demodulation; Euclidean distance; Frequency shift keying; Gaussian noise; Phase modulation; Radiofrequency amplifiers; Signal to noise ratio;
Journal_Title :
Communications, IEEE Transactions on
