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首页> 外文期刊>Wireless Communications Letters, IEEE >High SNR Linear Estimation of Vector Sources
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High SNR Linear Estimation of Vector Sources

机译:向量源的高SNR线性估计

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摘要

In this letter, we extend our prior work and consider decentralized estimation of unknown random vectors under high observation signal-to-noise ratio (SNR). A linear model is considered for decentralized estimation of vector sources. Observation models and sensor operations are both linear. Furthermore, the channel between the wireless sensors and fusion center (FC) is a coherent multiple access channel (MAC). Each sensor observes a different vector source. Sensors are designed to minimize the total mean square error (MSE) at the FC subject to the individual transmit power constraints at the sensors. We first provide the solution for scalar sources under high observation SNR regime. Then, we use the provided solution for scalar sources and extend it to the case of vector sources.
机译:在这封信中,我们扩展了先前的工作,并考虑了在高观测信噪比(SNR)下对未知随机向量的分散估计。考虑线性模型对向量源进行分散估计。观察模型和传感器操作都是线性的。此外,无线传感器和融合中心(FC)之间的信道是相干多路访问信道(MAC)。每个传感器观察到不同的矢量源。传感器的设计旨在使FC处的总均方误差(MSE)最小化,这取决于传感器的各个发射功率限制。我们首先提供高观测信噪比条件下标量源的解决方案。然后,我们将提供的解决方案用于标量源,并将其扩展到矢量源的情况。

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