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- W2040776150 abstract "A practical downlink beamforming technique is proposed for an FDD system to mitigate the interference and enhance the SINR performance at the mobile user. Most of the closed loop beamforming techniques require a large number of feedback bits that make them impractical for standards such as LTE where only a limited number of feedback bits is available in the feedback channel. Therefore, a downlink beamforming scheme is introduced at the base station where the antenna elements are grouped into a collection of ports. We propose to apply codebook beamforming over the ports and perform beam steering at each port to further direct the transmitted energy and reduce the interference to the rest of the users. Simulation results reveal that, with significantly fewer number of feedback bits, our proposed technique outperforms diversity transmission scheme, especially in the low SNR regime, in a system with the same total number of antenna elements where a larger number of feedback bits is required." @default.
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- W2040776150 date "2011-12-01" @default.
- W2040776150 modified "2023-10-18" @default.
- W2040776150 title "Downlink Beamforming for FDD Systems with Precoding and Beam Steering" @default.
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- W2040776150 doi "https://doi.org/10.1109/glocom.2011.6133839" @default.
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