毫米波5G网络中的全栈混合波束形成

2021 19th Mediterranean Communication and Computer Networking Conference (MedComNet) Pub Date : 2020-10-13 DOI:10.1109/MedComNet52149.2021.9501238

Felipe Gómez-Cuba, Tommaso Zugno, Junseok Kim, Michele Polese, S. Bahk, M. Zorzi

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引用次数: 3

摘要

本文分析了混合波束成形(HBF)和多用户多输入多输出(MU-MIMO)在毫米波(mmWave)第五代(5G)蜂窝网络中的应用，考虑了TCP/IP流量和MAC调度的全协议栈。先前关于HBF和MU-MIMO的工作假设了全缓冲传输并研究了链路级性能。我们报告了HBF技术、NR中前置信道估计导频方案和MU-MIMO调度约束之间的重要相互作用。我们还报告了联合多用户波束形成设计是必要的，因为当仅仅作为单用户模拟波束并行工作的集合实现时，MU-MIMO系统不能被充分利用。通过解决这些问题，可以通过空分多址(SDMA)大幅提高毫米波5G网络的吞吐量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Full-stack Hybrid Beamforming in mmWave 5G Networks

This paper analyzes Hybrid Beamforming (HBF) and Multi-User Multiple-Input Multiple-Output (MU-MIMO) in millimeter wave (mmWave) 5th generation (5G) cellular networks considering the full protocol stack with TCP/IP traffic and MAC scheduling. Prior work on HBF and MU-MIMO has assumed full-buffer transmissions and studied link-level performance. We report non-trivial interactions between the HBF technique, the front-loaded channel estimation pilot scheme in NR, and the constraints of MU-MIMO scheduling. We also report that joint multi-user beamforming design is imperative, in the sense that the MU-MIMO system cannot be fully exploited when implemented as a mere collection of single-user analog beams working in parallel. By addressing these issues, throughput can be dramatically increased in mmWave 5G networks by means of Spatial Division Multiple Access (SDMA).

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2021 19th Mediterranean Communication and Computer Networking Conference (MedComNet)

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