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Identification and equalization using higher order cumulants in MC-CDMA systems

机译:在MC-CDMA系统中使用高阶累积量进行识别和均衡

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In this paper we propose an algorithm based on fourth order cumulants for identification of linear systems with Non Minimum Phase (NMP) excited by independent identically distributed (i.i.d) non-Gaussian sequences. In order to test its efficiency, we consider one practical frequency-selective fading channel, called Broadband Radio Access Network (BRAN E), normalized for Multi-Carrier Code Division Multiple Access (MC-CDMA) systems. IOn the other hand, we use the Minimum Mean Square Error (MMSE) equalizer after the channel identication to correct the channel distortion. Our simulation results show that, the proposed algorithm provides overall a good channel estimation and a good BER performance.
机译:在本文中,我们提出了一种基于四阶累积量的算法,用于识别由独立的均匀分布(i.d.d)非高斯序列激发的具有非最小相位(NMP)的线性系统。为了测试其效率,我们考虑了一种实用的选频衰落信道,称为宽带无线接入网(BRAN E),已针对多载波码分多址(MC-CDMA)系统进行了标准化。另一方面,我们在信道识别之后使用最小均方误差(MMSE)均衡器来校正信道失真。仿真结果表明,该算法总体上提供了良好的信道估计和良好的误码率性能。

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