中国激光, 2019, 46 (12): 1206002, 网络出版: 2019-12-02  

基于干扰管理的异构VLC/WiFi网络子信道分配 下载: 1040次

Subchannel Resource Allocation in Heterogeneous VLC/WiFi Networks Based on Interference Management
作者单位
1 重庆邮电大学通信与信息工程学院, 重庆 400065
2 重庆邮电大学工业物联网与网络化控制教育部重点实验室, 重庆 400065
摘要
针对异构VLC/ WiFi网络的多接入点布局的信道干扰问题,提出了改进遗传算法的干扰抑制子信道分配(IGA-ISSA)方案。该方案依据VLC信道质量状况,为用户决策接入网络。对接入VLC网络的用户,根据用户位置特征划分优先等级,采用冲突图为不同等级用户设计干扰抑制的子信道分配方案,并使用改进遗传算法优化VLC子信道的分配方案。对需要接入WiFi网络的用户,根据用户的差异化速率需求为用户分配子信道。仿真结果表明,所提方案能提高VLC/WiFi网络的吞吐量与用户满意度。
Abstract
In this study, we propose an improved genetic algorithm, i.e., an interference suppression subchannel allocation (IGA-ISSA) scheme, to solve the channel interference problem that can be attributed to the layout of multiple access points in heterogeneous VLC/WiFi networks. In IGA-ISSA, decision-making is designed for the user to select a VLC or WiFi network in accordance with the VLC channel quality. Further, the users are classified into three priority levels according to the user location characteristics in VLC. Subsequently, a subchannel allocation scheme is designed based on the user conflict graph with respect to different levels for suppressing the interference. Furthermore, IGA-ISSA is introduced to optimize the subchannel allocation for the VLC network. Finally, a WiFi subchannel allocation scheme is designed based on the different user-required rates with respect to the allocated WiFi subchannel in case of users accessing a WiFi network. The simulation results denote that the IGA-ISSA scheme can improve the throughput and user satisfaction with respect to a VLC/WiFi network.

刘焕淋, 林振宇, 陈勇, 蒲欣. 基于干扰管理的异构VLC/WiFi网络子信道分配[J]. 中国激光, 2019, 46(12): 1206002. Huanlin Liu, Zhenyu Lin, Yong Chen, Xin Pu. Subchannel Resource Allocation in Heterogeneous VLC/WiFi Networks Based on Interference Management[J]. Chinese Journal of Lasers, 2019, 46(12): 1206002.

引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!