DocumentCode :
979750
Title :
Multiple-symbol differential detection of GMSK for mobile communications
Author :
Abrardo, Andrewa ; Benelli, Giuliano ; Cau, Gianfranco R.
Author_Institution :
Dept. of Electron. Eng., Florence Univ., Italy
Volume :
44
Issue :
3
fYear :
1995
fDate :
8/1/1995 12:00:00 AM
Firstpage :
379
Lastpage :
389
Abstract :
A new multiple differential detection (MDD) sequence estimator is described which uses a decision feedback for the demodulation of a GMSK signal. This technique is based upon a maximum-likelihood sequence estimation of the transmitted phases rather than on a symbol-by-symbol detection. An upper and a lower bound on the bit error probability of the described detector in the case of an AWGN channel and a two-ray Rayleigh fading channel are derived. The performance of the detection algorithm in a mobile radio communication system is obtained through computer simulation. Comparisons with the coherent detection algorithm show that the proposed detection algorithm is quite attractive both in an AWGN and in a multipath channel
Keywords :
Gaussian channels; Rayleigh channels; automatic repeat request; error statistics; estimation theory; fading; land mobile radio; maximum likelihood detection; maximum likelihood estimation; minimum shift keying; multipath channels; sequences; AWGN channel; GMSK; bit error probability; decision feedback; demodulation; detection algorithm; lower bound; maximum-likelihood sequence estimation; mobile communications; multipath channel; multiple differential detection sequence estimator; multiple-symbol differential detection; performance; transmitted phases; two-ray Rayleigh fading channel; upper bound; AWGN; Demodulation; Detection algorithms; Detectors; Error probability; Feedback; Maximum likelihood detection; Maximum likelihood estimation; Phase detection; Phase estimation;
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/25.406604
Filename :
406604
Link To Document :
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