随着园区综合能源系统(integrated energy system,IES)对系统状态感知、调控水平要求不断提高,关键信息在通信网络中的高效传输成为综合能源系统状态快速感知、快速调控的关键。首先提出基于物联网的园区综合能源系统信息采集、传输、...随着园区综合能源系统(integrated energy system,IES)对系统状态感知、调控水平要求不断提高,关键信息在通信网络中的高效传输成为综合能源系统状态快速感知、快速调控的关键。首先提出基于物联网的园区综合能源系统信息采集、传输、控制体系,结合综合能源系统物理3层架构建立基于物联网的园区综合能源系统3层星型通信网络模型。在该模型中通过基于端口的虚拟局域网(virtual local area network,VLAN)划分实现综合能源系统通信网络的低延时、高吞吐性能。在VLAN划分的基础上,设置链路利用率、业务应答时间阈值,探究了通信网络在所设条件下的临界运行状态,为综合能源系统快速通信网络规模设置提供了定量分析依据。仿真验证了所提方案的可行性。展开更多
With the fast development of highspeed railways,a call for fulfilling the notion of communication at "anytime,anywhere" for high-speed train passengers in the Train Operating Control System is on the way.In ...With the fast development of highspeed railways,a call for fulfilling the notion of communication at "anytime,anywhere" for high-speed train passengers in the Train Operating Control System is on the way.In order to make a realization of that,new railway wireless communication networks are needed.The most promising one is the Long Term Evolution for Railway which will provide broadband access,fast handover,and reliable communication for high mobility users.However,with the increase of speed,the system is subjected to high bit error rate,Doppler frequency shift and handover failure just like other system does.This paper is trying to solve these problems by employing MIMO technique.Specifically,the goal is to provide higher data rate,higher reliability,less delay,and other relative quality of services for passengers.MIMO performance analysis,resource allocation,and access control for handover and various services in a two-hop model are proposed in this paper.Analytical results and simulation results show that the proposed model and schemes perform well in improving the system performances.展开更多
文摘随着园区综合能源系统(integrated energy system,IES)对系统状态感知、调控水平要求不断提高,关键信息在通信网络中的高效传输成为综合能源系统状态快速感知、快速调控的关键。首先提出基于物联网的园区综合能源系统信息采集、传输、控制体系,结合综合能源系统物理3层架构建立基于物联网的园区综合能源系统3层星型通信网络模型。在该模型中通过基于端口的虚拟局域网(virtual local area network,VLAN)划分实现综合能源系统通信网络的低延时、高吞吐性能。在VLAN划分的基础上,设置链路利用率、业务应答时间阈值,探究了通信网络在所设条件下的临界运行状态,为综合能源系统快速通信网络规模设置提供了定量分析依据。仿真验证了所提方案的可行性。
基金the support from NSFC under Grant 61222105the 863 Plan of China under Grant 2014AA01A706+3 种基金the project of State Key Lab under Grant RCS2012ZT013the Key Project of Chinese Ministry of Education under Grant 313006the Key Project for Railway Ministry of China under Grant 2012X008-Athe project of State Key Lab under Grant No. RCS2011ZZ002
文摘With the fast development of highspeed railways,a call for fulfilling the notion of communication at "anytime,anywhere" for high-speed train passengers in the Train Operating Control System is on the way.In order to make a realization of that,new railway wireless communication networks are needed.The most promising one is the Long Term Evolution for Railway which will provide broadband access,fast handover,and reliable communication for high mobility users.However,with the increase of speed,the system is subjected to high bit error rate,Doppler frequency shift and handover failure just like other system does.This paper is trying to solve these problems by employing MIMO technique.Specifically,the goal is to provide higher data rate,higher reliability,less delay,and other relative quality of services for passengers.MIMO performance analysis,resource allocation,and access control for handover and various services in a two-hop model are proposed in this paper.Analytical results and simulation results show that the proposed model and schemes perform well in improving the system performances.
