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首页> 外文期刊>Telecommunication systems: Modeling, Analysis, Design and Management >Uplink coverage probability and spectral efficiency for downlink uplink decoupled dense heterogeneous cellular network using multi-slope path loss model
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Uplink coverage probability and spectral efficiency for downlink uplink decoupled dense heterogeneous cellular network using multi-slope path loss model

机译：使用多斜坡路径损耗模型下行链路上行链路上行链路上行链路解耦密集异构蜂窝网络的上行链路覆盖概率和光谱效率

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摘要

Low powered node densification leading to dense and ultra dense heterogeneous networks is a feature of 5th generation cellular networks. With this densification, the nature of the link between the transmitter and receiver in the network requires even more accurate and reliable models. For performance analysis of such networks where the rates of signal loss over distance becomes a significant parameter, more accurate path lossmodels should be usedwhen analyzing user equipment (UE) association probability, coverage probability and average spectral efficiency. In this paper, we have considered a two-tier dense heterogeneous cellular network incorporating downlink uplink decoupled technique and have derived generalized expressions for UE association probability, decoupled uplink coverage probability and decoupled uplink average spectral efficiency using multi-slope path loss model. This path loss model broadly incorporates the effects of physical environment on the distance-dependent path loss. For simulation purpose, we have compared network performance while considering single-slope and dual-slope path loss models. The derived analytical expressions have been validated through network simulations and found in good agreement. Through comparison, it has been found that the decoupled UE association probability and uplink coverage probability is higher when incorporating multi-slope path loss model as compared to single-slope path loss model while the decoupled uplink spectral efficiency is observed to be lower when incorporating dual slope path loss model.
机译：导致密集和超密集的异构网络的低功耗节点致密化是第五代蜂窝网络的特征。通过这种致密化，网络中的发射器和接收器之间的链路的性质需要更准确和可靠的模型。为了对这些网络的性能分析，其中信号损失的信号损失的速率变为重要参数，应使用更准确的路径损耗模型，当分析用户设备（UE）关联概率，覆盖概率和平均频谱效率时都应该使用。在本文中，我们已经考虑了一种具有下行链路上行链路解耦技术的双层密集的异构蜂窝网络，并且使用多斜率路径损耗模型具有用于UE关联概率的推导出的概率，去耦上行覆盖概率和去耦上行链路平均频谱效率。该路径损耗模型广泛地融合了物理环境对距离依赖性路径损耗的影响。对于仿真目的，我们在考虑单斜率和双斜坡路径损耗模型时比较了网络性能。通过网络模拟验证了派生的分析表达式，并以良好的一致性发现。通过比较，已经发现，与单斜坡路径损耗模型相比，结合多斜率路径损耗模型时，解耦UE关联概率和上行链路覆盖概率较高，而在结合双斜线链路频谱效率时被观察到分离的上行链路谱效率较低斜坡路径损耗模型。

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