Performance Analysis of MISINR User Association in 3-D Heterogeneous Cellular Networks
Performance Analysis of MISINR User Association in 3-D Heterogeneous Cellular Networks
复制标题
3-D异构蜂窝网络中MISINR用户关联的性能分析
DOI：
10.1109/tvt.2020.2976120
复制
发表时间：
2020
影响因子：
6.8
通讯作者：
Haixia Zhang
中科院分区：
文献类型：
--
作者：
Hui Ding;Feng Zhao;Jie Tian;Haixia Zhang
持续增长的移动的业务需求正在将无线网络推向具有不同类型的基站（BS）的密集异构架构。在这种密集的异构网络（HetNet）中，特别是在高层建筑3-D环境中，用户需要在通信之前确定与哪个BS相关联。不同的用户关联方案导致不同的系统性能。本文研究了密集城市环境下的最大瞬时信干噪比（MISINR）用户关联方案。一个通用的3-D模型是用来模拟密集的城市HetNet部署在高层建筑。利用随机几何理论分别推导了一般情况下和干扰受限情况下的覆盖概率和平均用户速率。数值和仿真结果表明，MISINR用户关联方案具有最好的性能相比，其他两个关联方案在3-D HetNet。从结果中，有趣的是观察到，在干扰受限的情况下，覆盖概率和平均用户速率的表达式可以简化为封闭形式。
The continuously growing mobile traffic demand is pushing wireless networks to dense heterogeneous architectures with different types of base stations (BSs). In such dense heterogeneous networks (HetNets), especially in the high-rise building 3-D environment, the users need to determine which BS to be associated with before communication. Different user association schemes lead to different system performance. In this paper, a maximum instantaneous signal-to-interference-plus-noise ratio (MISINR) user association scheme is studied in the dense urban environment. A general 3-D model is utilized to model the dense urban HetNets deployed in the high-rise buildings. The coverage probability and average user rate are theoretically derived by using stochastic geometry in a general case and an interference-limited case, respectively. Numerical and simulation results demonstrate that the MISINR user association scheme has the best performance compared with other two association schemes in 3-D HetNets. From the results, it is interesting to observe that the expressions of coverage probability and average user rate can be simplified to closed-forms in the interference-limited case.