QoS-QoE驱动的VLC/RF异构网络资源分配算法  

Resource allocation algorithm driven by QoS-QoE for VLC/RF heterogeneous networks

作　　者：孙洪亮 陈同飞 钱磊 SUN Hongliang;CHEN Tongfei;QIAN Lei(College of Information and Control Engineering,Jilin Institute of Chemical Technology,Jilin Jilin 132022,China;School of Electronic and Information Engineering,Tiangong University,Tianjin 300387,China)

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]天津工业大学电子与信息工程学院,天津300387

出　　处：《光通信技术》2024年第6期16-22,共7页Optical Communication Technology

基　　金：国家自然科学基金项目(批准号:62301359)资助;吉林省教育厅科学研究项目(批准号:JJKH20220243KJ)资助。

摘　　要：为了高效保障可见光通信/射频(VLC/RF)异构网络的服务质量(QoS),同时保障用户体验质量(QoE),提出了一种QoS-QoE驱动的VLC/RF异构网络资源分配算法。首先,根据用户位置和VLC链路遮挡情况分析用户成功接入概率,建立了切换服务模型并求解了服务过程的有效容量。采用中断均匀过程(IUP)来描述流量到达,并计算了IUP到达的有效带宽。然后,推导了满足时延QoS要求的RF服务速率,并基于QoS与QoE的映射关系,建立QoE评估体系。最后,仿真分析了不同参数对资源分配算法的影响。仿真结果表明,算法能够在保障QoS的同时保障QoE。To efficiently ensure the quality of service(QoS)and quality of experience(QoE)of visible light communication/radio frequency(VLC/RF)heterogeneous networks,a QoS-QoE driven resource allocation algorithm for VLC/RF heterogeneous networks is proposed.First,the success access probability of users is analyzed based on their locations and the blocking situation of VLC links,and a switching service model is established to solve the effective capacity of the service process.The interruption uniform process(IUP)is used to describe the arrival of traffic,and the effective bandwidth of the IUP arrival is calculated.Then,the RF service rate that satisfies the delay QoS requirement is derived,and the QoE evaluation system is established based on the mapping relationship between QoS and QoE.Finally,the influence of different parameters on the resource allocation algorithm is analyzed through simulation.The simulation results show that the algorithm can ensure QoS and QoE at the same time.

关 键 词：异构网络 有效带宽 有效容量 服务质量 体验质量 资源分配 

分 类 号：TN929.1[电子电信—通信与信息系统]