Title :
A new maximum Doppler frequency estimation algorithm in frequency domain
Author :
Park, Goohyun ; Heo, Dongkyu ; Hong, Daesik ; Kang, Changeon
Author_Institution :
Info. & Telecom. Lab, Yonsei Univ., Seoul, South Korea
Abstract :
A novel maximum Doppler spread estimation algorithm for mobile communication systems is proposed. The proposed algorithm uses a fast Fourier transform (FFT) of received pilot signals, which are related with the maximum Doppler frequency fD. The proposed algorithm does not need to know any other channel information such as signal to noise ratio(SNR) because of using only the distribution of a fading channel power spectrum. Especially, the proposed algorithm shows good performance over wide a Doppler frequency in low SNR (< 10dB).
Keywords :
Rayleigh channels; cellular radio; fast Fourier transforms; frequency estimation; frequency-domain analysis; modulation; spectral analysis; AWGN; FFT; PSAM; SNR; additive white Gaussian noise; cellular communication systems; fading channel power spectrum distribution; fast Fourier transform; flat Rayleigh fading channel model; frequency domain; maximum Doppler frequency estimation algorithm; mobile communication systems; pilot symbol assisted modulation; received pilot signals; signal to noise ratio; AWGN; Adaptive control; Autocorrelation; Fading; Frequency domain analysis; Frequency estimation; Mobile communication; Programmable control; Signal to noise ratio; Telecommunications;
Conference_Titel :
Communication Systems, 2002. ICCS 2002. The 8th International Conference on
Print_ISBN :
0-7803-7510-6
DOI :
10.1109/ICCS.2002.1182535
