Abstract
In this paper, we concentrate on the codebook design for 3D-MIMO multiuser precoding scheme. An improved 3D precoding codebook design is proposed by considering the relative phase between the horizontal codebook and the vertical codebook. By setting the initial phase of the horizontal codebook properly, the distance between codewords can be maximized, so that the beam direction corresponding to the codewords can be more accurately pointed to the expected user in the real 3D space, and the spatial information of the horizontal and vertical dimensions can be more fully utilized. Simulation results demonstrate that, compared to the traditional 3D codebook design, this improved codebook design can suppress the multiuser co-channel interference more efficiently and improve the system performance effectively.
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Acknowledgements
This work was supported by Liaoning Provincial Department of Education Research Project (L2015043) and Doctoral Scientific Research Foundation of Liaoning Province (201601280, 201501191).
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Cao, Y., Wang, S., Li, P., Wang, J. (2019). An Improved Codebook Design for 3D-MIMO Multiuser Precoding Scheme. In: Liang, Q., Liu, X., Na, Z., Wang, W., Mu, J., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2018. Lecture Notes in Electrical Engineering, vol 515. Springer, Singapore. https://doi.org/10.1007/978-981-13-6264-4_7
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DOI: https://doi.org/10.1007/978-981-13-6264-4_7
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