Joint precoding and scheduling algorithm for massive MIMO in FDD multi-cell network | Wireless Networks
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Joint precoding and scheduling algorithm for massive MIMO in FDD multi-cell network

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Abstract

Massive multiple-input multiple-output (MIMO) systems, in which base stations are equipped with a large number of antennas in a two-dimensional antenna array, is one of the most promising technologies to improve the spectral efficiency of the fifth generation mobile communication systems (5G). Since there is no short-term channel reciprocity, the frequency-division duplexing (FDD) massive MIMO system has to obtain channel state information with the help of uplink feedback with acceptable overhead. To cope with this issue, we propose the design of joint precoding and scheduling algorithm in FDD multi-cell network. In the algorithm, all the users are firstly grouped by the statistics of channel correlation matrix, then the inter-group interference exiting among intra-cell and inter-cell is eliminated at the first precoding stage. Then users are adaptively scheduled and beamformed at the second precoding stage based on the low dimension effective channel. Finally, the effectiveness of the proposed algorithm is presented through simulations.

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Acknowledgements

This work was supported by the State Major Science and Technology Special Projects (Grant No. 2016ZX03001001-005).

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Authors and Affiliations

  1. China Telecom Technology Innovation Center, Beijing, China

    Bin Han, Zheng Jiang, Lin Liang, Peng Chen, Fengyi Yang & Qi Bi

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  1. Bin Han
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  2. Zheng Jiang
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  3. Lin Liang
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  4. Peng Chen
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  5. Fengyi Yang
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  6. Qi Bi
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Correspondence to Bin Han.

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Han, B., Jiang, Z., Liang, L. et al. Joint precoding and scheduling algorithm for massive MIMO in FDD multi-cell network. Wireless Netw 25, 75–85 (2019). https://doi.org/10.1007/s11276-017-1535-9

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  • DOI: https://doi.org/10.1007/s11276-017-1535-9

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