Abstract
In this paper, we present a novel non-iterative coordinated beamforming algorithm for overlaid multicell coordinated beamforming systems where a macro base station acts as an anchor and computes the beamforming vectors. We propose beamforming vector design that improves the received signal-to-interference-plus-noise-ratio while reducing the computational complexity. We also show its asymptotic behaviors with respect to the number of antennas, confirming that the proposed solutions are useful for large-scale multiple-input multiple-output systems in heterogeneous and small cell networks.







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Acknowledgements
The authors would like to thank Dr. Insoo Hwang for discussion and constructive comments. This work was supported in part by the Institute of Information & Communications Technology Planning & Evaluation (IITP) through the Korea Government (MSIT) (Supervised Agile Machine Learning Techniques for Network Automation based on Network Data Analytics Function) under Grant 2019-0-00024, and in part by the National Research Foundation of Korea (NRF) through the Korea Government (MSIT) under Grant NRF-2020R1A2B5B01002528.
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Kwon, M., Park, H. Non-iterative Coordinated Beamforming for Multicell MIMO Heterogeneous Networks. Wireless Pers Commun 112, 763–775 (2020). https://doi.org/10.1007/s11277-020-07072-0
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DOI: https://doi.org/10.1007/s11277-020-07072-0