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• W2302247396 abstract "In this paper, we propose a blind channel estimation and signal retrieving algorithm for two-hop multiple-input multiple-output (MIMO) relay systems. This new algorithm integrates two blind source separation (BSS) methods to estimate the individual channel state information (CSI) of the source-relay and relay-destination links. In particular, a first-order Z-domain precoding technique is developed for the blind estimation of the relay-destination channel matrix, where the signals received at the relay node are pre-processed by a set of precoders before being transmitted to the destination node. With the estimated signals at the relay node, we propose an algorithm based on the constant modulus and signal mutual information properties to estimate the source-relay channel matrix. Compared with training-based MIMO relay channel estimation approaches, the proposed algorithm has a better bandwidth efficiency as no bandwidth is wasted for sending the training sequences. Numerical examples are shown to demonstrate the performance of the proposed algorithm." @default.
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• W2302247396 date "2016-05-01" @default.
• W2302247396 modified "2023-09-23" @default.
• W2302247396 title "Blind channel estimation and signal retrieving for MIMO relay systems" @default.
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• W2302247396 doi "https://doi.org/10.1016/j.dsp.2016.02.007" @default.
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