AN IMPROVED CARRIER FREQUENCY SYNCHRONIZATION ALGORITHM WITH SPATIAL DIVERSITY IN MIMO-OFDM SYSTEM
Carrier frequency synchronization is important in MIMO-OFDM systems. Any carrier frequency offset will cause a loss of subcarrier orthogonality which results in ICI and hence performance degrades severely. In this paper, a preamble structure for MIMO-OFDM systems is proposed. Based on the structure, the carrier frequency synchronization algorithm in burst data transmission for MIMO-OFDM systems is improved. The paper investigates the value of the improved algorithm with transmit and receive diversities for carrier synchronization in MIMO-OFDM systems. The simulation results show that the carrier synchronization performance in MIMO-OFDM systems with the improved algorithm exploiting transmit and receive diversity is efficient and robust, especially in low signal-to-noise ratio condition.
MIMO-OFDM carrier frequency synchronization CFO MSE diversity
Xiao Chi Yin Changchuan Huang Hai Peng Duan Ma Yan
Key Laboratory of Universal Wireless Communications, Ministry of Education School of Information Engineering, Guangdong University of Technology, GuangZhou 510006,China Research Institute of Networking Technology, Beijing University of Posts & Telecommunications, Beiji
国际会议
北京
英文
628-631
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）