On the Outage Probability of Device-to-Device-Communication-Enabled Multichannel Cellular Networks: An RSS-Threshold-Based Perspective
On the Outage Probability of Device-to-Device-Communication-Enabled Multichannel Cellular Networks: An RSS-Threshold-Based Perspective
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关于支持设备到设备通信的多通道蜂窝网络的中断概率：基于 RSS 阈值的视角
DOI：
10.1109/jsac.2015.2452492
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发表时间：
2016
影响因子：
16.4
通讯作者：
Guo Jun
中科院分区：
文献类型：
--
作者：
Liu Jiajia;Nishiyama Hiroki;Kato Nei;Guo Jun
在本文中，我们研究了中断概率的设备到设备（D2 D）通信使能蜂窝网络从一般的阈值为基础的角度。具体地，如果来自最近的基站（BS）的接收信号强度（RSS）小于指定阈值β ≥ 0，则移动的用户设备（TIE）以D2 D模式进行发送;否则，其连接到最近的BS并以蜂窝模式进行发送。基于RSS阈值的设置在以下意义上是通用的：通过将β从β = 0变化到β = ∞，网络相应地从传统蜂窝网络（仅包括蜂窝模式）向无线自组织网络（仅包括D2 D模式）演进。我们提供了一个统一的框架来分析在多信道环境中的下行链路中断概率与瑞利衰落，BS和TIE的空间分布，以及明确占利用随机几何。我们推导出封闭形式的表达式的中断概率的通用TIE，在蜂窝模式和D2 D模式和量化的中断概率，可以通过允许这样的RSS-thresholdbased D2 D通信的性能增益。我们表明，增加信道的数量，虽然能够支持更多的蜂窝TIE，可能会导致在D2 D使能的蜂窝网络中的中断概率的增加。应用我们的框架，也确定了相应的条件和原因。
In this paper, we study the outage probability of device-to-device (D2D)-communication-enabled cellular networks from a general threshold-based perspective. Specifically, a mobile user equipment (TIE) transmits in D2D mode if the received signal strength (RSS) from the nearest base station (BS) is less than a specified threshold β ≥ 0; otherwise, it connects to the nearest BS and transmits in cellular mode. The RSS-threshold-based setting is general in the sense that by varying β from β = 0 to β = ∞, the network accordingly evolves from a traditional cellular network (including only cellular mode) toward a wireless ad hoc network (including only D2D mode). We provide a unified framework to analyze the downlink outage probability in a multichannel environment with Rayleigh fading, where the spatial distributions of BSs and TIEs are well explicitly accounted for by utilizing stochastic geometry. We derive closed-form expressions for the outage probability of a generic TIE and that in both cellular mode and D2D mode and quantify the performance gains in outage probability that can be obtained by allowing such RSS-thresholdbased D2D communications. We show that increasing the number of channels, although able to support more cellular TIEs, may result in an increase of outage probability in the D2D-enabled cellular network. The corresponding condition and reason are also identified by applying our framework.