DocumentCode
1106183
Title
Improved decision boundaries of narrowband M-ary CPFSK
Author
Fonseka, John P.
Author_Institution
Sch. of Eng. & Comput. Sci., Texas Univ., Dallas, TX
Volume
42
Issue
6
fYear
1994
fDate
6/1/1994 12:00:00 AM
Firstpage
2204
Lastpage
2207
Abstract
Improved decision boundaries of narrowband M-ary CPFSK with limiter discriminator integrator (LDI) detection, differentially coherent (DC) detection and coherent detection with differential decoding (CDDD) receivers are reported at modulation index 1/M. A simple method to determine each improved decision boundary by considering only the two closest symbols to that boundary is discussed. Numerical results presented for quaternary and octonary signals indicate that improved boundaries are almost identical to optimal boundaries and perform significantly better than the standard boundaries
Keywords
decoding; demodulation; discriminators; frequency shift keying; limiters; receivers; coherent detection; decision boundaries; differential decoding; differentially coherent detection; limiter discriminator integrator detection; modulation index; narrowband M-ary CPFSK; octonary signals; quaternary signals; receivers; Decoding; Degradation; Equations; Filters; Helium; Intersymbol interference; Modulation; Narrowband; Performance analysis; Phase noise;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/26.293666
Filename
293666
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