IEEE 802.11n MIMO-OFDM无线局域网系统的定时与频率同步

Timing and frequency synchronization for IEEE 802.11n MIMO-OFDM WLAN systems

本文提出了一种针对基于IEEE 802.11n标准的MIMO-OFDM无线局域网系统的定时与频率同步方案。本文提出的同步算法基于训练序列。该算法充分利用多天线分集,使同步算法的MSE性能得到显著的改进。仿真表明本文提出的同步方案在低信噪比条件下仍具有良好的性能,并且能够有效地对抗瑞利衰落信道的影响。

This paper proposes a timing and frequency synchronization scheme for IEEE 802.11n MIMO-OFDM wireless LAN systems. The proposed scheme is based on training sequence, and exploits multiple-antenna diversity which can significantly improve the MSE performance of the synchronization algorithms. Simulation results show that the proposed, synchronization scheme performs well even at a low SNR and can effectively mitigate the effect of Rayleigh fading channel.