家庭基站中多业务融合的自适应调度机制研究  

Research on adaptive scheduling mechanism for multi-service fusion in femtocell

作　　者：凌启东[1] 阳媛 Ling Qidong;Yang Yuan(School of Information and Electrical Engineering,Xuzhou College of Industrial Technology,Xuzhou 221140,China;School of Instrument Science and Engineering,Southeast University,Nanjing 211189,China)

机构地区：[1]徐州工业职业技术学院信息与电气工程技术学院,徐州221140 [2]东南大学仪器科学与工程学院,南京211189

出　　处：《电子测量与仪器学报》2018年第12期171-177,共7页Journal of Electronic Measurement and Instrumentation

基　　金：国家自然科学青年基金(61601123);江苏省双创博士项目(1122000131);徐州市科技发展基金(KC17132)资助项目

摘　　要：针对5G家庭基站环境中用户业务的数量剧增和QoS需求多样化的特点,提出了一种多业务融合的动态调度机制。设计了一种新型架构的家庭基站系统,满足了多业务融合通信的发展需求。分析了家庭基站环境中业务的特点,提出了一种面向5G网络环境的自适应动态调度算法,根据不同分集内业务的QoS特点,设计了多业务融合的资源分配策略,为用户提供差异化的服务,同时在系统负荷状态改变时,自适应调整业务优先级计算公式,提高了系统的性能。仿真结果表明,与传统的轮循(RR)算法和改进的A_ARS算法相比,该算法获得了更高的吞吐量,在过载时大大降低了丢包率,保证了业务的公平性。Aiming at the growth number of user services and the diversity of QoS requirements in the 5G femtocell environment,a dynamic scheduling mechanism based on multi-service fusion is proposed. A new type of femtocell system is designed,and it meets the needs of the development of multi-service fusion communication. The characteristics of business in femtocell environment are analyzed, and an adaptive dynamic scheduling algorithm in 5G network environment is proposed. According to the QoS characteristics of the service in different sets,the independent resource allocation strategies based on multi-service fusion are designed,which can provide different services for users. At the same time,when the state of system load changes,the calculation formula of services priority is adjusted adaptively to improve the performance of the system. The simulation results show that,compared with the traditional algorithm RR and the improved A_ARS algorithm,the algorithm achieves better throughput,greatly reduces the loss rate and ensures the fairness of the business when overload occurs.

关 键 词：资源分配 服务质量 多业务 5G 

分 类 号：TN929.5[电子电信—通信与信息系统]