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Coverage and Area Spectral Efficiency of Clustered Device-to-Device Networks

机译：集群设备到设备网络的覆盖范围和区域谱效率

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This paper develops a new spatial model for device-to-device (D2D) networks in which the device locations are modeled as a Thomas cluster process. The devices inside a given cluster form D2D links amongst themselves and the direct communication across clusters is not required. This model captures the fact that the devices engaged in D2D communications need to be in close proximity of each other. For this model, we derive easy-to-use expressions for both coverage probability and area spectral efficiency (ASE) assuming that the content of interest is available at a device chosen uniformly at random from the same cluster. One of the important consequences of this analysis is that there exists an optimal number of simultaneously active D2D-Txs that maximizes the ASE. This can be interpreted as the classical tradeoff between more aggressive frequency reuse and higher interference power. Our analysis also provides insights into the effect of scattering variance of each cluster and the density of cluster centers on coverage probability and ASE.
机译：本文开发了一种用于设备到设备（D2D）网络的新空间模型，其中设备位置被建模为托马斯集群过程。不需要给定群集中的D2D链路内部的设备，并不需要跨集群的直接通信。该模型捕获从事D2D通信的设备需要彼此靠近。对于该模型，假设感兴趣的内容在从同一群集中随机选择的设备处获得感兴趣的内容可用的覆盖概率和区域频谱效率（ASE）推出易于使用的表达式。该分析的重要后果之一是存在最佳数量的同时活动的D2D-TX，可以最大化ASE。这可以解释为更积极的频率重用和更高的干扰功率之间的经典权衡。我们的分析还提供了对每个集群的散射方差和覆盖概率和ASE上的集群中心密度的效果的见解。

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