【作者】 白宾锋； 蔡跃明； 徐信；

【Author】 Bai Bin-feng,Cai Yue-ming,Xu xin (Dept of Radio Communications ICE,PLAUST,Nanjing 210007)

【机构】 解放军理工大学通信工程学院无线通信系；

【摘要】 OFDM技术、空时编码和分集技术的联合可以实现无线数据的高速可靠传输。传统的多天线系统中利用训练序列来实现信道估计。本文给出了一种采用空时编码的发射分集OFDM系统中基于离散导频的信道估计方法,它可以进一步提高系统效率。仿真结果证明该算法具有很好估计性能和鲁棒性。更多还原

【Abstract】 Orthogonal Frequency-division Multiplexing(OFDM) is a powerful competitor technology for the future high rate wireless communication.Combining OFDM,space-time code(STC) and transmitter diversity we can get high rate and reliable wireless communication.Conventional multi-antenna communication systems use training sequence to achieve channel parameter.In this paper,we present a channel estimation method based on discrete pilot in OFDM system with transmitter diversity and space-code.The method can achieve higher efficiency.The simulation results show that the method presented here has good estimation performance and high robustness.更多还原