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

作　　者：张骋[1] 徐元欣[1] 董玲[1] 王匡[1] 杨剑啸[1] 

机构地区：[1]浙江大学信息与通信工程研究所,浙江杭州310027

出　　处：《电路与系统学报》2010年第1期32-36,70,共6页Journal of Circuits and Systems

摘　　要：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.

关 键 词：IEEE 802.11n 多入多出 正交频分复用 无线局域网 同步 

分 类 号：TN929.5[电子电信—通信与信息系统]