Title :
Carrier frequency offset estimation for OFDM-based WLANs
Author :
Li, Jian ; Liu, Guoqing ; Giannakis, Georgios B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida Univ., Gainesville, FL, USA
fDate :
3/1/2001 12:00:00 AM
Abstract :
We present an efficient carrier frequency offset (CFO) estimation algorithm for the orthogonal frequency-division multiplexing (OFDM)-based wireless local area networks (WLANs). The packet preamble information we use is based on the high rate WLAN standards adopted by the IEEE 802.11 standardization group. Numerical results are presented to demonstrate the effectiveness of the proposed algorithm.
Keywords :
IEEE standards; OFDM modulation; frequency estimation; packet radio networks; standardisation; telecommunication standards; wireless LAN; FIR filter; IEEE 802.11 standardization group; OFDM-based WLAN; carrier frequency offset estimation algorithm; filter length; frequency-selective fading channel; high rate WLAN standards; orthogonal frequency-division multiplexing; packet preamble information; wireless local area networks; Additive noise; Finite impulse response filter; Frequency division multiplexing; Frequency estimation; Gaussian noise; Least squares approximation; Maximum likelihood estimation; OFDM; Standardization; Wireless LAN;
Journal_Title :
Signal Processing Letters, IEEE
