摘要
针对可见光通信与WiFi异构网络的联合资源管理问题,对比例公平算法和最大载干比算法这两种传统的资源调度算法进行探讨研究,最终选择以比例公平算法为基础对其进行优化,新算法加入了异构网络人数调整因子和短期服务质量保证,根据分组时延决定用户的优先级,提高系统在不同区域内用户获得资源的能力,进而提高了系统资源的利用率。仿真实验结果表明优化后的比例公平算法在系统的吞吐量、公平性指数以及访问时延概率等方面都有很大的改进。
In order to solve the problem of joint resource management in visible-light communication and WiFi heterogeneous networks,two traditional resource scheduling algorithms—proportional fair algorithm and maximum load-to-interference ratio algorithm,are studied.Then,the algorithm is optimized on the basis of proportional fair algorithm.The new algorithm adds the number adjustment factor of heterogeneous network and short-term quality of service guarantee,and determines the priority of users according to the packet delay,improve the system in different regions of the user access to resources,and thus improve the utilization of system resources.The simulation results indicate that the optimized proportional fair algorithm can improve the system throughput,fairness index and access delay probability.
作者
朱福荣
杨立伟
刘鑫来
王恩宇
廖丹怡
黄若曦
ZHU Furong;YANG Liwei;LIU Xinlai;WANG Enyu;LIAO Danyi;HUANG Ruoxi(China Agricultural University,Beijing 100083,China)
出处
《通信技术》
2021年第7期1665-1669,共5页
Communications Technology
基金
国家自然科学基金(No.61705260)
中国农业大学2115人才工程资助。
关键词
可见光通信
WIFI
异构网络
资源分配
visible light communication
WiFi
heterogeneous network
resource allocation
