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- W1531609151 abstract "In this paper, we propose a robust transceiver design for nonregenerative multicasting multiple-input multiple-output (MIMO) relay systems where a transmitter broadcasts common message to multiple receivers with aid of a relay node and the transmitter, relay and receivers are all equipped with multiple antennas. In the proposed design, the actual channel state information (CSI) is assumed as a Gaussian random matrix with the estimated CSI as the mean value, and the channel estimation errors are derived from the well-known Kronecker model. In the proposed design scheme, the transmitter and relay precoding matrices are jointly optimized to minimize the maximal mean squared-error (MSE) of the estimated signal at all receivers. The optimization problem is highly nonconvex in nature. Hence, we propose a low complexity solution by exploiting the optimal structure of the relay precoding matrix. Numerical simulations demonstrate the improved robustness of the proposed transceiver design algorithm against the CSI mismatch." @default.
- W1531609151 created "2016-06-24" @default.
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- W1531609151 date "2015-04-01" @default.
- W1531609151 modified "2023-09-24" @default.
- W1531609151 title "Simplified robust design for nonregenerativemm multicasting MIMO relay systems" @default.
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- W1531609151 doi "https://doi.org/10.1109/ict.2015.7124698" @default.
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