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首页> 外文期刊>EURASIP journal on advances in signal processing >General minimum Euclidean distance-based precoder for MIMO wireless systems
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General minimum Euclidean distance-based precoder for MIMO wireless systems

机译:用于MIMO无线系统的通用最小基于欧几里德距离的预编码器

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In this article, we investigate the linear precoder based on the maximization of the minimum Euclidean distance between two received data vectors. This new precoding matrix is expressed as the product of a power allocation matrix and an input-shaping matrix. The input-shaping matrix is selected as a normalized discrete Fourier transform-matrix, and the optimal power allocation depends on the channel characteristics. For each number of available datastreams, we propose a general form of the optimized precoding matrix. These forms are suitable for different transmit channels and especially for all rectangular quadrature amplitude modulation modulations. We show, in the simulation results, that the proposed precoder provides a significant improvement in terms of bit error rate performance compared to other traditional precoding strategies.
机译:在本文中,我们基于两个接收到的数据向量之间的最小欧几里得距离的最大值来研究线性预编码器。该新的预编码矩阵被表示为功率分配矩阵和输入整形矩阵的乘积。选择输入整形矩阵作为归一化离散傅立叶变换矩阵,并且最佳功率分配取决于信道特性。对于每种可用数据流,我们提出了优化预编码矩阵的一般形式。这些形式适用于不同的发射通道,尤其适用于所有矩形正交幅度调制调制。我们在仿真结果中显示,与其他传统的预编码策略相比,所提出的预编码器在误码率性能方面提供了显着的改进。

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