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- W2949936042 abstract "In this paper, we study a relay-aided multiuser amplify-and-forward relaying system where a multi-antenna base station (BS) transmits downlink to multiple single-antenna mobile stations (MSs) via a multi-antenna relay station (RS). We propose a novel precoder design scheme by using the joint integer-forcing method to achieve high rate with the algebraic structure of lattice codes. Inspired by the concept of decoding the linear equations in compute-and-forward relay systems, the linear precoding matrix is generalized as an integer matrix that is approximate to the channel matrix, thereby mitigating the multiuser interference (MUI) at the MSs. The power allocation optimization problem at the BS is taken into account to improve the performance of the scheme. The simulation results show the outstanding performance of the proposed scheme." @default.
- W2949936042 created "2019-06-27" @default.
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- W2949936042 date "2019-01-01" @default.
- W2949936042 modified "2023-10-17" @default.
- W2949936042 title "Joint Integer-Forcing Precoder Design for MIMO Multiuser Relay System" @default.
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- W2949936042 doi "https://doi.org/10.1109/access.2019.2924020" @default.
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