Title :
Impact of large Doppler on error performance of FH/MFSK with RS coding in Rayleigh and Rician fading
Author :
Lee, Richard ; El-Arini, M. ; Broome, Norval
Author_Institution :
Mitre Corp., McLean, VA, USA
fDate :
30 Sep-3 Oct 1990
Abstract :
The degradation of performance caused by Doppler shift to frequency-hopped (FH)/M-ary frequency shift keying (MFSK) Reed-Solomon (RS) coded signal over a Rayleigh and Rician channel is analyzed. The receiver uses a digital processing scheme, consisting of an analog-to-digital (A/D) converter followed by quadrature decomposition and complex-valued envelope discrete Fourier transformation (DFT). Predecoder symbol error probability and postdecoder word error probability are presented as a function of Doppler shift, channel randomness parameter, and the symbol-energy-to-noise ratio. The noise is assumed to be white and Gaussian distributed. Results show that for a typical symbol error rate of 10-3, the margin for 8-ary uncoded transmission must be increased by 8 dB to account for Doppler in a Rician fading channel
Keywords :
Doppler effect; error correction codes; error statistics; fading; frequency agility; frequency shift keying; radiocommunication; signal detection; A/D converter; FH/MFSK; M-ary frequency shift keying; RS coding; Rayleigh fading; Reed-Solomon coding; Rician fading; complex-valued envelope discrete Fourier transformation; digital processing scheme; error performance; frequency hopping; large Doppler; postdecoder word error probability; predecoder symbol error probability; quadrature decomposition; receiver; signal detection; white Gaussian noise; Analog-digital conversion; Degradation; Discrete Fourier transforms; Doppler shift; Error probability; Frequency shift keying; Performance analysis; Reed-Solomon codes; Rician channels; Signal analysis;
Conference_Titel :
Military Communications Conference, 1990. MILCOM '90, Conference Record, A New Era. 1990 IEEE
Conference_Location :
Monterey, CA
DOI :
10.1109/MILCOM.1990.117595
