Title :
Analysis of system frame synchronization on a FH-BFSK system performance for mobile radio applications
Author :
Wu, Geng ; Lecours, Michel ; Defly, Koffi ; Delisle, G.Y.
Author_Institution :
Dept. of Electr. Eng., Laval Univ., Que., Canada
Abstract :
The effect of system frame synchronization in a frequency-hopped (FH) spread-spectrum digital mobile radio communication system is evaluated. A novel mathematical approach is used for modeling the FH-BFSK mobile radio system in the presence of Rician fading, multiuser interference and Gaussian white noise. Besides the synchronization error between users, the influence of propagation conditions in different types of region, and the effect of coding are considered. The results show that the multiuser interference is a serious problem which limits the system´s capacity. Performance degradation increases quickly with the frame synchronization error. A good frame is maintained to minimize the bit error rate (BER). System performance can be improved by increasing the signal-to-noise ratio, only where there is a good system frame synchronization
Keywords :
digital communication systems; fading; frequency agility; frequency shift keying; mobile radio systems; radiofrequency interference; spread spectrum communication; white noise; BER; FH-BFSK system performance; Gaussian white noise; Rician fading; SNR; bit error rate; coding; digital mobile radio; frequency hopped spread spectrum; modeling; multiuser interference; propagation conditions; signal-to-noise ratio; synchronization error; system frame synchronization; Bit error rate; Degradation; Frequency synchronization; Interference; Land mobile radio; Mathematical model; Rician channels; Spread spectrum communication; System performance; White noise;
Conference_Titel :
Vehicular Technology Conference, 1988, IEEE 38th
Conference_Location :
Philadelphia, PA
DOI :
10.1109/VETEC.1988.195391
