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OFDM(正交频分复用)作为一种高效可靠的传输方式,被广泛应用于无线通信系统中,近年来越来越受到人们的关注。文中主要研究基于导频的OFDM信道估计,在此基础上提出了一种采用最小二乘法的联合信道估计方法。这种方法能够将传送数据与导频结合起来进行更精确的信道估计,从而提高系统性能。仿真结果表明,文中方法优于经典的信道估计方法。
As an efficient and reliable transmission method, OFDM (Orthogonal Frequency Division Multiplexing) is widely used in wireless communication systems and has drawn more and more attention in recent years. In this paper, we mainly study pilot-based OFDM channel estimation, and propose a joint channel estimation method based on least square method. This approach combines the transmitted data with the pilot for more accurate channel estimation to improve system performance. The simulation results show that the proposed method is superior to the classical channel estimation method.