基于QoS保障的VLC/RF网络资源分配算法  

Resource Allocation Algorithm for VLC/RF Networks Based on QoS Guarantees

作　　者：孙洪亮 陈同飞 张海德 刘容余 SUN Hong-liang;CHEN Tong-fei;ZHANG Hai-de;LIU Rong-yu(Jilin Institute of Chemical Technology,Jilin 132022,Jilin;Fengman Training Center,State Grid Xinyuan Group Co.,Ltd.,Jilin 132113,Jilin;Jinsha Town Middle School of Huadian City,Jilin 132415,Jilin)

机构地区：[1]吉林化工学院信息与控制工程学院,吉林吉林132022 [2]国网新源集团有限公司丰满培训中心,吉林吉林132113 [3]桦甸市金沙镇中学,吉林吉林132415

出　　处：《电脑与电信》2023年第10期46-48,53,共4页Computer & Telecommunication

基　　金：吉林省教育厅科学研究项目,项目编号:JJKH20220243KJ。

摘　　要：针对可见光通信和射频构成的网络,为高效保障服务质量,结合有效带宽和有效容量理论设计了一种资源分配算法。研究建立了混合流量到达、RF补偿服务的网络队列系统。采用混合中断伯努利过程描述流量的到达过程,并推导了到达过程的带宽需求。考虑VLC链路遮挡时使用RF进行补偿服务,建立服务模型并推导了服务过程的有效容量。最后求解了满足时延QoS的补偿服务速率,设计了基于QoS保障的网络资源分配算法。算法可以为VLC/RF网络的资源优化提供理论指导与技术支持。For the network composed of visible light communication(VLC)and radio frequency(RF),to guarantee the quality of service(QoS)efficiently,this paper designs a resource allocation algorithm combining the theory of effective bandwidth and effective capacity.A network queuing system is established with hybrid traffic arrival and RF compensation service.A hybrid Interrupted Bernoulli Process(IBP)is utilized to characterize the traffic arrival process and determine the necessary bandwidth for this particular process.In light of the obstruction of the VLC link,we propose a compensation service that utilizes RF technology.We develop a service model and calculate the effective capacity of the service process.In conclusion,we determine the compensatory service rate that fulfills the delay QoS requirement.Subsequently,we develop a network resource allocation algorithm founded on ensuring QoS.The algorithm possesses the capability to offer theoretical guidance and technical assistance in the context of resource optimization within VLC/RF networks.

关 键 词：VLC/RF网络 QOS保障 有效带宽 有效容量 补偿服务 

分 类 号：TN929.5[电子电信—通信与信息系统]