Title :
Impact of large Doppler on error performance of FH/MFSK with RS or BCH coding in Rayleigh and Rician fading
Author :
Lee, Richard B. ; El-Arini, M. Bakry ; Broome, Norval L.
Author_Institution :
MITRE Corp., McLean, VA, USA
fDate :
7/1/1994 12:00:00 AM
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 employs 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 post-decoder 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 :
BCH codes; Doppler effect; Reed-Solomon codes; coding errors; fading; frequency agility; frequency shift keying; probability; radio receivers; random noise; spread spectrum communication; ADC; BCH coding; DFT; Doppler shift; FH/MFSK; Gaussian distributed noise; M-ary frequency shift keying; RS coding; Rayleigh fading; Reed-Solomon codes; Rician fading; analog-to-digital converter; channel randomness parameter; complex-valued envelope; digital processing; discrete Fourier transformation; error performance; frequency hopping; quadrature decomposition; symbol energy-to-noise ratio; symbol error probability; word error probability; Analog-digital conversion; Degradation; Discrete Fourier transforms; Doppler shift; Error probability; Frequency shift keying; Performance analysis; Reed-Solomon codes; Rician channels; Signal analysis;
Journal_Title :
Communications, IEEE Transactions on
