A novel channel estimation method for OFDM transmission technique under fast time-variant fading channel
A novel channel estimation method for OFDM transmission technique under fast time-variant fading channel
复制标题
快时变衰落信道下正交频分复用传输技术的一种新型信道估计方法
DOI：
10.1109/vetecs.2003.1208808
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Hideo Kobayashi
中科院分区：
文献类型：
--
作者：
T. Fukuhara;H. Yuan;Y. Takeuchi;Hideo Kobayashi
针对快时变衰落信道中的正交频分复用（OFDM）系统，提出了一种新的信道频率响应估计方法。所提出的方法能够在不使用导频信号的情况下实现精确的相干解调，导频信号通常需要周期性地插入到数据符号中以科普快速时变衰落。计算机仿真结果表明，该方法在车速达到180 km/h时仍能保持较好的误码率性能。
This paper proposes a novel estimation method of channel frequency response for orthogonal frequency division multiplexing (OFDM) systems operating in fast time-variant fading channels. The proposed method enables accurate coherent demodulation without using pilot signals, which are usually required to be inserted in the data symbols periodically to cope with fast time-variant fading. Computer simulation results show that the proposed method maintains better BER performance even when the vehicle speed reaches 180 km/h.