arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.05027cs.ITcs.NImath.IT
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基于随机几何的5G波束管理建模与分析

Stochastic Geometry-Based Modeling and Analysis of Beam Management in 5G

Sanket S. Kalamkar, Fuad M. Abinader, François Baccelli, Andrea S. Marcano Fani, and Luis G. Uzeda Garcia

摘要:

波束管理是密集5G蜂窝网络运行的核心。通过增加每个小区的波束数量来集中辐射到移动终端(MT)的能量,增加了信号功率并降低了干扰,因此有可能带来面积频谱效率(ASE)的重大改进。然而,这一好处伴随着不可避免的开销,这些开销随着光束数量和MT速度的增加而增加。本文提出了第一个系统级随机几何模型,包括波束管理问题的主要方面:频率,天线和传播;物理层,无线链路和编码;网络几何,干扰和资源共享;传感,信令和移动性管理。这个模型导致一个简单的分析表达式的有效ASE,典型的用户在这种情况下。这反过来又使人们能够找到各种5G网络场景,包括毫米波(mmWave)和sub-6 GHz,每个小区的波束数量可以在这些好处和成本之间提供最佳的全球权衡。最后,我们提供了数值结果,讨论了毫米波和低于6 GHz的5G部署的不同系统权衡和性能的影响。

英文摘要:

Beam management is central in the operation of dense 5G cellular networks. Focusing the energy radiated to mobile terminals (MTs) by increasing the number of beams per cell increases signal power and decreases interference, and has hence the potential to bring major improvements on area spectral efficiency (ASE). This benefit, however, comes with unavoidable overheads that increase with the number of beams and the MT speed. This paper proposes a first system-level stochastic geometry model encompassing major aspects of the beam management problem: frequencies, antennas, and propagation; physical layer, wireless links, and coding; network geometry, interference, and resource sharing; sensing, signaling, and mobility management. This model leads to a simple analytical expression for the effective ASE that the typical user gets in this context. This in turn allows one to find, for a wide variety of 5G network scenarios including millimeter wave (mmWave) and sub-6 GHz, the number of beams per cell that offers the best global trade-off between these benefits and costs. We finally provide numerical results that discuss the effects of different systemic trade-offs and performances of mmWave and sub-6 GHz 5G deployments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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