Dense Small Cell Networks: From Noise-Limited to Dense Interference-Limited
Dense Small Cell Networks: From Noise-Limited to Dense Interference-Limited
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DOI：
10.1109/tvt.2018.2794452
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发表时间：
2017-01
影响因子：
6.8
通讯作者：
Bin Yang;Guoqiang Mao;Ming Ding;Xiaohu Ge;Xiaofeng Tao
中科院分区：
文献类型：
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作者：
Bin Yang;Guoqiang Mao;Ming Ding;Xiaohu Ge;Xiaofeng Tao
考虑非视距（NLoS）和视距（LoS）传输，研究了第五代（5G）小蜂窝网络（SCNs）从限噪区到密集限干扰区的过渡行为。此外，我们根据基站（BS）密度确定了四种性能状态，即1)噪声限制状态，2)信号主导状态，3)干扰主导状态和4)干扰限制状态。为了表征性能体系，我们提出了一个统一的框架来分析未来5G无线网络在广义阴影/衰落信道上的性能，其中可以研究基于最强瞬时接收功率和最强平均接收功率的用户关联方案，同时考虑NLoS/LoS传输和多斜率路径损失模型。仿真结果表明，随着BS密度的增加，噪声、期望信号和干扰等不同因素依次或分别主导着网络性能。因此，我们的研究结果为不同BS部署密度的城市和农村地区scn的设计和管理提供了新的思路。
Considering both non-line-of-sight (NLoS) and line-of-sight (LoS) transmissions, the transitional behaviors from noise-limited regime to dense interference-limited regime have been investigated for the fifth generation (5G) small cell networks (SCNs). Besides, we identify four performance regimes based on base station (BS) density, i.e., 1) the noise-limited regime, 2) the signal-dominated regime, 3) the interference-dominated regime, and 4) the interference-limited regime. To characterize the performance regime, we propose a unified framework analyzing the future 5G wireless networks over generalized shadowing/fading channels, in which the user association schemes based on the strongest instantaneous received power and the strongest average received power can be studied, while NLoS/LoS transmissions and multislop path loss model are considered. Simulation results indicate that different factors, i.e., noise, desired signal, and interference, successively and separately dominate the network performance with the increase of BS density. Hence, our results shed new light on the design and management of SCNs in urban and rural areas with different BS deployment densities.