Device density in cellular networks is expected to increase considerably in the next future. Accordingly, the access point (AP) will equip massive multiple-input multiple-output (mMIMO) antennas, using collimated millimeter-wave (mmW) and sub-THz communications, and increase the bandwidth to accommodate the growing data rate demands. In this scenario, interference plays a critical role and, if not characterized and mitigated properly, might limit the performances of the network. In this context, this paper derives the statistical properties of the aggregated interference power for a cellular network equipping a mMIMO cylindrical array. The proposed statistical model considers the link blockage and other network parameters such as antenna configuration and device density. The findings show that the characteristic function (CF) of the aggregated interference power can be regarded as a weighted mixture of two alpha-stable distributions. Furthermore, by analyzing the service probability, it is found that there is an optimal configuration of the array depending on the AP height and device density. The proposed statistical model can be part of the design of dense networks providing valuable insights for optimal network deployment
翻译:因此,接入点(AP)将装备大量的多投入多输出(mIMO)天线,使用千米波和亚THz通信,并增加带宽,以适应不断增长的数据速率需求。在这种情形下,干扰起着关键作用,如果不适当地定性和减轻,则可能会限制网络的性能。在此情况下,本文件将产生装有 mIMO 圆柱形阵列的蜂窝网络综合干扰力的统计特性。拟议的统计模型将考虑连接区块和其他网络参数,例如天线配置和装置密度。研究结果显示,集成干扰力的特性功能(CF)可被视为两种字母表分布的加权组合。此外,通过分析服务概率,发现根据AP的高度和装置密度,阵列的配置是最佳的。拟议的统计模型可以作为密集网络设计的一部分,为最佳网络部署提供有价值的洞察力。