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A Novel Equalization Technique for High Mobility OFDM System

机译:高移动性OFDM系统的一种新型均衡技术

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摘要

We proposed a novel equalization technique to suppress noise interference in wireless communications over time-varying multipath channels. In the doubly-selective channel, error exists not only in the received signal but also the channel matrix. Total least squares method can be applied to resolve this type problem. Owing to considering the two errors, the total least squares (TLS) method tends to give better results than zero-forcing method based on least square. Through computer simulations, we demonstrate the better performance of the equalizer based on TLS then ZF equalizer.
机译:我们提出了一种新颖的均衡技术来抑制时变多径信道上无线通信中的噪声干扰。在双选择信道中,不仅在接收信号中存在误差,而且在信道矩阵中也存在误差。总最小二乘法可以用来解决这种类型的问题。由于考虑了两个误差,总最小二乘法(TLS)往往比基于最小二乘的强制零方法产生更好的结果。通过计算机仿真,我们证明了基于TLS的均衡器比ZF均衡器的性能更好。

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