Title :
A Novel Timing Synchronization Method for CDD-OFDM Systems with Spatially Correlated Channel
Author :
Huang, Wei-Chieh ; Tsai, Chia-Lung ; Ting, Pang-An
Author_Institution :
Div. for Broadband Mobile Syst., Inf. & Commun. Res. Labs., Hsinchu, Taiwan
Abstract :
Cyclic-delay diversity (CDD) schemes require only one inverse discrete Fourier transform (IDFT) operation at the transmitter. As a result, they provide a low-complexity means of increasing the transmission diversity in multiple-input multiple- output (MIMO) orthogonal frequency division multiplexing (OFDM) systems. In this paper, we develop a novel timing synchronization method for CDD-OFDM systems. In our proposed method, the channel correlation between transmit antennas is exploited to enhance timing synchronization accuracy. The simulation results are performed to verify the superiority of the proposed timing synchronization method.
Keywords :
MIMO communication; OFDM modulation; correlation methods; discrete Fourier transforms; diversity reception; radio transmitters; synchronisation; wireless channels; CDD-OFDM system; channel correlation; cyclic-delay diversity scheme; inverse discrete Fourier transform operation; multiple input multiple output orthogonal frequency division multiplexing system; spatially correlated channel; timing synchronization accuracy; timing synchronization method; transmission diversity; transmit antenna; Correlation; OFDM; Signal to noise ratio; Synchronization; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2011 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-8328-0
DOI :
10.1109/VETECF.2011.6093220
