User-Centric Access Scheme Based on Interference Management for Indoor VLC-WIFI Heterogeneous Networks
User-Centric Access Scheme Based on Interference Management for Indoor VLC-WIFI Heterogeneous Networks
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DOI：
10.1109/jphot.2020.3002246
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发表时间：
2020-06
影响因子：
2.4
通讯作者：
Huanlin Liu;Xin Pu;Yong Chen;Jian Yang;Jinlin Chen
中科院分区：
文献类型：
--
作者：
Huanlin Liu;Xin Pu;Yong Chen;Jian Yang;Jinlin Chen
VLC-WIFI异构网络已经成为一种很有前途的解决方案，其中VLC和WIFI正在合作为室内用户提供服务。可见光通信多接入点（AP）的密集部署可以扩大系统容量，但也会导致复杂的小区间干扰（ICI）。为了安排用户接入合适的接入点并实现干扰管理，提出了一种基于规则频谱分配的以用户为中心的接入方案（UCARSA）。在UCARSA中，切片可见频谱被定期分配给VLC AP，因此与多个AP相关联的用户受到ICI的影响较小。此外，为每个用户构建虚拟社区，以平衡用户速率，提高平均频谱效率。仿真结果表明，UCARSA算法的性能优于两种比较算法。
VLC-WIFI heterogeneous networks have become a promising solution, where VLC and WIFI are collaborating on providing services for indoor users. The dense deployment of visible light communication multiple access points (APs) can expand the system capacity, but it leads to complicated inter-cell interference (ICI). In order to arrange users to access the appropriate AP and implement interference management, a novel scheme called user-centric access based on regular spectrum allocation (UCARSA) is proposed in the paper. In UCARSA, the sliced visible spectrum is assigned to VLC APs regularly, so that the user associated with more than one AP is impacted less by ICI. Furthermore, the virtual community is constructed for each user to balance the user rate and improve the average spectral efficiency. The above performance improvement can be proved by simulation results in this paper, and it shows that the performance of UCARSA is better than two kinds of comparison algorithms.