With the explosive growth of highspeed wireless data demand and the number of mobile devices, fog radio access networks(F-RAN) with multi-layer network structure becomes a hot topic in recent research. Meanwhile, due ...With the explosive growth of highspeed wireless data demand and the number of mobile devices, fog radio access networks(F-RAN) with multi-layer network structure becomes a hot topic in recent research. Meanwhile, due to the rapid growth of mobile communication traffic, high cost and the scarcity of wireless resources, it is especially important to develop an efficient radio resource management mechanism. In this paper, we focus on the shortcomings of resource waste, and we consider the actual situation of base station dynamic coverage and user requirements. We propose a spectrum pricing and allocation scheme based on Stackelberg game model under F-RAN framework, realizing the allocation of resource on demand. This scheme studies the double game between the users and the operators, as well as between the traditional operators and the virtual operators, maximizing the profits of the operators. At the same time, spectrum reuse technology is adopted to improve the utilization of network resource. By analyzing the simulation results, it is verified that our proposed scheme can not only avoid resource waste, but also effectively improve the operator's revenue efficiency and overall network resource utilization.展开更多
This paper introduces the background,illustrates the hardware structure and software features of malicious base station,explains its work principle,presents a method of detecting malicious base station,analyses the ex...This paper introduces the background,illustrates the hardware structure and software features of malicious base station,explains its work principle,presents a method of detecting malicious base station,analyses the experiment and evaluates the experimental results to verify the reliability of this method.Finally proposes the future work.展开更多
A novel Radio On Fiber(ROF) access is proposed and demonstrated which enables the pico-cell Base Station (BS) for high-speed wireless communications to eliminate external electric power supply facilities. We demonstra...A novel Radio On Fiber(ROF) access is proposed and demonstrated which enables the pico-cell Base Station (BS) for high-speed wireless communications to eliminate external electric power supply facilities. We demonstrated 2.4-GHz band radio signal transmission through the BS without external electric power supply. The electrical power used for BS circuit is feeded by optical power over optical fiber from central station.展开更多
构建基于无人机基站(Unmanned Aerial Vehicle Base Station, UBS)的空地网络是解决移动通信网络覆盖等问题的重要途径。区别于地面移动通信网络,空地网络需要对UBS位置和用户关联进行联合优化。针对上述问题,首先通过构建二进制无线电...构建基于无人机基站(Unmanned Aerial Vehicle Base Station, UBS)的空地网络是解决移动通信网络覆盖等问题的重要途径。区别于地面移动通信网络,空地网络需要对UBS位置和用户关联进行联合优化。针对上述问题,首先通过构建二进制无线电地图(Binary Radio Map, BRM)使得UBS能够有效获取整个任务区域中用户位置关联的信道知识,在此基础上提出基于BRM的离线多UBS部署与用户关联联合规划方法。该方法以最大化网络效用函数为目标,通过互嵌套的启发式UBS部署位置搜索和基于匹配博弈的UBS-用户匹配实现UBS位置和用户关联的离线优化。在复杂城市环境下,相比于参考方案,所提方法可使得用户和速率性能提升10%~40%。展开更多
基金supported in part by the National Natural Science Foundation of China (61771120)the Fundamental Research Funds for the Central Universities (N171602002)
文摘With the explosive growth of highspeed wireless data demand and the number of mobile devices, fog radio access networks(F-RAN) with multi-layer network structure becomes a hot topic in recent research. Meanwhile, due to the rapid growth of mobile communication traffic, high cost and the scarcity of wireless resources, it is especially important to develop an efficient radio resource management mechanism. In this paper, we focus on the shortcomings of resource waste, and we consider the actual situation of base station dynamic coverage and user requirements. We propose a spectrum pricing and allocation scheme based on Stackelberg game model under F-RAN framework, realizing the allocation of resource on demand. This scheme studies the double game between the users and the operators, as well as between the traditional operators and the virtual operators, maximizing the profits of the operators. At the same time, spectrum reuse technology is adopted to improve the utilization of network resource. By analyzing the simulation results, it is verified that our proposed scheme can not only avoid resource waste, but also effectively improve the operator's revenue efficiency and overall network resource utilization.
文摘This paper introduces the background,illustrates the hardware structure and software features of malicious base station,explains its work principle,presents a method of detecting malicious base station,analyses the experiment and evaluates the experimental results to verify the reliability of this method.Finally proposes the future work.
文摘A novel Radio On Fiber(ROF) access is proposed and demonstrated which enables the pico-cell Base Station (BS) for high-speed wireless communications to eliminate external electric power supply facilities. We demonstrated 2.4-GHz band radio signal transmission through the BS without external electric power supply. The electrical power used for BS circuit is feeded by optical power over optical fiber from central station.
文摘构建基于无人机基站(Unmanned Aerial Vehicle Base Station, UBS)的空地网络是解决移动通信网络覆盖等问题的重要途径。区别于地面移动通信网络,空地网络需要对UBS位置和用户关联进行联合优化。针对上述问题,首先通过构建二进制无线电地图(Binary Radio Map, BRM)使得UBS能够有效获取整个任务区域中用户位置关联的信道知识,在此基础上提出基于BRM的离线多UBS部署与用户关联联合规划方法。该方法以最大化网络效用函数为目标,通过互嵌套的启发式UBS部署位置搜索和基于匹配博弈的UBS-用户匹配实现UBS位置和用户关联的离线优化。在复杂城市环境下,相比于参考方案,所提方法可使得用户和速率性能提升10%~40%。
