Title :
Frequency synchronization in MIMO OFDM system
Author :
Yan, Chunlin ; Li, Shaoqian ; Tang, Youxi ; Luo, Xiao
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
The paper proposes a frequency offset method in multi-input multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems; it is an improvement of the method of T.C.W. Schenk and A. van Zelst (see Proc. IEEE Vehicular Tech. Conf., Fall 2003). A two-step strategy is adopted. First, a small correlation span is used to get a large estimation range. After the estimated frequency offset is compensated, a large correlation span is used to make the estimation more precise. Simulations in AWGN and Rayleigh channels verified the validity of the proposed algorithm.
Keywords :
AWGN channels; MIMO systems; OFDM modulation; Rayleigh channels; correlation methods; frequency estimation; mobile radio; synchronisation; AWGN channels; MIMO OFDM system; Rayleigh channels; correlation span; frequency offset compensation; frequency offset estimation; frequency synchronization; mobile communications; multi-input multi-output orthogonal frequency division multiplexing systems; AWGN; Delay effects; Delay estimation; Frequency estimation; Frequency synchronization; MIMO; OFDM; Rayleigh channels; Receiving antennas; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
Print_ISBN :
0-7803-8521-7
DOI :
10.1109/VETECF.2004.1400331
