基于Stackelberg博弈的星地融合网络切片机制  

Stackelberg Game Model based Network Slicing Scheme of Integrated Satellite-Terrestrial Network

作　　者：王静贤 成俊峰 冯旭[1] 陆洲[1] WANG Jing-xian;CHENG Jun-feng;FENG Xu;LU Zhou(China Academy of Electronics and Information Technology,Beijing 100041,China)

机构地区：[1]中国电子科学研究院,北京100041

出　　处：《中国电子科学研究院学报》2021年第5期499-505,共7页Journal of China Academy of Electronics and Information Technology

基　　金：国家重点研发计划资助项目(2020YFB1806902)。

摘　　要：为了满足星地融合网络中多样性业务的差异化需求,提高有限资源的利用率,文中研究星地融合网络的切片资源分配问题,提出基于三层斯坦克尔伯格博弈模型的网络切片机制(network slicing scheme based on three layer stackelberg game model,NSTSG)。作为博弈过程的参与者,物理基础设施的设备提供商(infrastructure provider,InP),逻辑虚拟网络运营商(virtual network operator,VNO),以及用户端(user equipment,UE)通过交易带宽资源最大化自身的效用。在设计效用函数时,根据业务对数据传输速率和时延的要求为用户定义优先级,从而满足不同用户业务的多样性QoS需求。文中采用逆向归纳法求得斯坦克尔伯格博弈均衡解,从仿真结果中分析了用户业务QoS需求以及用户规模对博弈参与者最优决策的影响,并且通过与其他机制对比,验证了本文提出的NSTSG机制在满足多用户业务差异化需求方面的有效性。In order to meet the differentiated needs of diverse services in the integrated satellite-terrestrial network and improve the utilization of limited resources,the slicing resource allocation problem is studied.A network slicing scheme based on three layer Stackelberg game model(NSTSG)is proposed.As game participants,infrastructure provider(InP),virtual network operator(VNO),and user equipment(UE)maximize their own utilities by trading bandwidth resources.When designing utility functions,the priority is defined for UEs according to services requirements for data transmission rates and time delay,so as to meet the diverse QoS requirements of different user services.The reverse induction method is used to obtain the equilibrium solution of the Stackelberg game.From simulation results,it can be analyzed that the influence of users’QoS requirements and users’scale on optimal decisions of game participants.Furthermore,the effectiveness of NSTSG mechanism in meeting the differentiated needs of multi-user services is verified by in comparison with other mechanisms.

关 键 词：网络切片 斯坦克尔伯格博弈 带宽 数据速率 时延 

分 类 号：TN927[电子电信—通信与信息系统]