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Decision feedback channel and symbol estimation methods for CDMA systems in indoor wireless communications

机译:室内无线通信中CDMA系统的决策反馈信道和符号估计方法

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摘要

A dispersive finite impulse response (FIR) channel model is often considered for indoor wireless channels. For the FIR channel model in this paper, we consider the joint estimation of channel parameters and data symbols in indoor code division multiple access (CDMA) systems. The least squares formulation is constructed for the joint estimation incorporating the decision feedback technique. This formulation is suitable for indoor CDMA systems that usually have a small processing gain. The formulation is further modified to provide a recursive approach to estimate the channel vector.
机译:通常针对室内无线信道考虑色散有限脉冲响应(FIR)信道模型。对于本文中的FIR信道模型,我们考虑了室内码分多址(CDMA)系统中信道参数和数据符号的联合估计。构造最小二乘公式,以结合决策反馈技术进行联合估计。该公式适用于通常具有较小处理增益的室内CDMA系统。对该公式进行进一步修改以提供一种递归方法来估计信道向量。

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