DocumentCode :
2522566
Title :
FDMA system performance with synchronization errors
Author :
Lui, Gee L.
Author_Institution :
Aerosp. Corp., El Segundo, CA, USA
Volume :
3
fYear :
1996
fDate :
21-24 Oct 1996
Firstpage :
811
Abstract :
The effect of time and frequency synchronization errors on the performance of an FDMA communication system using symmetric differential phase shift keying (SDPSK) is considered. Power and bandwidth efficiency of the system versus channel frequency spacing and adjacent channel power imbalance are investigated for the ordinary SDPSK, guard time demodulated SDPSK, and square root raised-cosine pulse shaped SDPSK signals. It is shown that for an FDMA system affected by synchronization errors and power imbalance, the square root raised-cosine shaped SDPSK signal and the guard time demodulated SDPSK signal can provide significantly higher signaling efficiency than ordinary SDPSK with matched filter detection. We consider an FDMA system of N users where each user communicates with the satellite with an SDPSK modulated signal of the same data rate
Keywords :
adjacent channel interference; demodulation; differential phase shift keying; error statistics; filtering theory; frequency division multiple access; matched filters; probability; satellite communication; signal detection; synchronisation; telecommunication channels; FDMA communication system; FDMA system performance; SDPSK; adjacent channel interference; adjacent channel power imbalance; bandwidth efficiency; channel frequency spacing; data rate; frequency synchronization errors; guard time demodulated SDPSK signal; matched filter detection; power efficiency; raised-cosine pulse shaped SDPSK signals; satellite communication; signal detection; signaling efficiency; square root raised-cosine signals; symbol error probability; symmetric differential phase shift keying; Artificial satellites; Bandwidth; Demodulation; Differential phase shift keying; Frequency division multiaccess; Frequency synchronization; Intersymbol interference; Matched filters; Pulse shaping methods; System performance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Military Communications Conference, 1996. MILCOM '96, Conference Proceedings, IEEE
Conference_Location :
McLean, VA
Print_ISBN :
0-7803-3682-8
Type :
conf
DOI :
10.1109/MILCOM.1996.571391
Filename :
571391
Link To Document :
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