5G异构网络中的LTE与WiFi共存方法  

Coexistence method of LTE and WiFi in 5G heterogeneous networks

作　　者：林粤伟[1] LIN Yue-wei(College of Information Science and Technology,Qingdao University of Science and Technology,Qingdao 266061,China)

机构地区：[1]青岛科技大学信息科学技术学院,山东青岛266061

出　　处：《计算机工程与设计》2023年第4期1021-1026,共6页Computer Engineering and Design

基　　金：泛网无线通信教育部重点实验室(北京邮电大学)开放课题基金项目(KFKT-2018107);青岛科技大学教学改革研究面上基金项目(2018MS44)。

摘　　要：提出基于遗传算法的LTE-U空白子帧GA-ABS(generic algorithm based-almost blank subframe)配置方法。将空白子帧配置问题映射到遗传算法模型,进行一定的合理修改,考虑不同网络的公平性,使LTE-U网络可以动态地产生较优的空白子帧数量与位置配置方案。仿真结果表明,与传统配置方法相比,该方法较好解决了LTE-U与现有WiFi网络在非授权频段共存的问题,提高了网络的频谱利用率和吞吐量性能,具有较好的公平性,适用于多个LTE-U小基站和多个WiFi热点共存的场景。Generic algorithm was used to generate LTE-U almost blank subframe configuration method(GA-ABS).The ABS configuration problem was mapped to the genetic algorithm model,some reasonable modifications were made,and the fairness between different networks was considered,so that LTE-U network produced a better ABS number and location configuration dynamically.Compared with the traditional configuration method,the simulation results show that the proposed method better solves the problem of coexistence between LTE-U and existing WiFi networks in the unlicensed frequency bands,and improves the spectrum utilization and throughput performance of the networks.The proposed method also has good fairness degree and is suitable for the scenario where multiple LTE-U SBSs and WiFi APs coexist in the same area.

关 键 词：异构网络 空白子帧 长期演进-非授权 无线局域网 遗传算法 频谱共享 第五代移动通信 

分 类 号：TN911.1[电子电信—通信与信息系统]