为了有效提高光接入网网络资源利用率,满足不同用户差异化服务质量(quality of service,QoS)的业务需求,解决不同用户数据流量缺乏动态控制和智能调度的问题,提出一种基于OpenFlow的光与无线融合接入网控制架构。该架构通过部署OpenFlo...为了有效提高光接入网网络资源利用率,满足不同用户差异化服务质量(quality of service,QoS)的业务需求,解决不同用户数据流量缺乏动态控制和智能调度的问题,提出一种基于OpenFlow的光与无线融合接入网控制架构。该架构通过部署OpenFlow代理,延伸了控制器的控制深度到光线路终端(optical line terminal,OLT)和光网络单元(optical network unit,ONU),设计了智能化控制权限的动态下放和回收机制,从而实现了功能的整体控制和资源的灵活调度。该控制架构能够以全局视角实时获取网络、用户及业务信息,根据网络状态以及网络资源的情况,动态灵活智能地制定和调整各个交换节点的数据处理规则,实现资源优化配置,可以有效提高网络资源利用率和满足不同用户差异化的业务需求。展开更多
The next-generation optical network is a service oriented network,which could be delivered by utilizing the generalized multiprotocol label switching(GMPLS) based control plane to realize lots of intelligent features ...The next-generation optical network is a service oriented network,which could be delivered by utilizing the generalized multiprotocol label switching(GMPLS) based control plane to realize lots of intelligent features such as rapid provisioning,automated protection and restoration(P&R),efficient resource allocation,and support for different quality of service(QoS) requirements.In this paper,we propose a novel stateful PCE-cloud(SPC)based architecture of GMPLS optical networks for cloud services.The cloud computing technologies(e.g.virtualization and parallel computing) are applied to the construction of SPC for improving the reliability and maximizing resource utilization.The functions of SPC and GMPLS based control plane are expanded according to the features of cloud services for different QoS requirements.The architecture and detailed description of the components of SPC are provided.Different potential cooperation relationships between public stateful PCE cloud(PSPC) and region stateful PCE cloud(RSPC) are investigated.Moreover,we present the policy-enabled and constraint-based routing scheme base on the cooperation of PSPC and RSPC.Simulation results for verifying the performance of routing and control plane reliability are analyzed.展开更多
Lattice-based hierarchical identity-based broadcast encryption(H-IBBE)schemes have broad application prospects in the quantum era,because it reduces the burden of private key generator(PKG)and is suitable for one-to-m...Lattice-based hierarchical identity-based broadcast encryption(H-IBBE)schemes have broad application prospects in the quantum era,because it reduces the burden of private key generator(PKG)and is suitable for one-to-many communication.However,previous lattice-based H-IBBE schemes are mostly constructed in the random oracle model with more complex trapdoor delegation process and have lower practical application.A lattice-based H-IBBE is proposed in the fixed dimension under the standard model,which mainly consists of binary tree encryption(BTE)system,MP12 trapdoor function and ABB10b trapdoor delegation algorithm.First,this paper uses BTE system to eliminate the random oracle so that the scheme can be implemented under the standard model,and it also uses MP12 trapdoor function to reduce trapdoor generation complexity and obtains a safe and efficient trapdoor matrix;Second,this paper uses ABB10b trapdoor delegation algorithm to delegate user爷s private key,and the trapdoor matrices'dimensions are the same before and after the trapdoor delegation.Comparative analysis shows that trapdoor delegation process reduces complexity,and the size of cipher-text and trapdoor matrix does not increase with deeper trapdoor delegation process.This paper achieves indistinguishability of cipher-texts under a selective chosen-cipher-text and chosen-identity attack(INDr-sID-CCA)security in the standard model based on learning with errors(LWE)hard assumption.展开更多
文摘为了有效提高光接入网网络资源利用率,满足不同用户差异化服务质量(quality of service,QoS)的业务需求,解决不同用户数据流量缺乏动态控制和智能调度的问题,提出一种基于OpenFlow的光与无线融合接入网控制架构。该架构通过部署OpenFlow代理,延伸了控制器的控制深度到光线路终端(optical line terminal,OLT)和光网络单元(optical network unit,ONU),设计了智能化控制权限的动态下放和回收机制,从而实现了功能的整体控制和资源的灵活调度。该控制架构能够以全局视角实时获取网络、用户及业务信息,根据网络状态以及网络资源的情况,动态灵活智能地制定和调整各个交换节点的数据处理规则,实现资源优化配置,可以有效提高网络资源利用率和满足不同用户差异化的业务需求。
基金supported by National Natural Science Foundation of China(No.61571061)Innovative Research Fund of Beijing University of Posts and Telecommunications (2015RC16)
文摘The next-generation optical network is a service oriented network,which could be delivered by utilizing the generalized multiprotocol label switching(GMPLS) based control plane to realize lots of intelligent features such as rapid provisioning,automated protection and restoration(P&R),efficient resource allocation,and support for different quality of service(QoS) requirements.In this paper,we propose a novel stateful PCE-cloud(SPC)based architecture of GMPLS optical networks for cloud services.The cloud computing technologies(e.g.virtualization and parallel computing) are applied to the construction of SPC for improving the reliability and maximizing resource utilization.The functions of SPC and GMPLS based control plane are expanded according to the features of cloud services for different QoS requirements.The architecture and detailed description of the components of SPC are provided.Different potential cooperation relationships between public stateful PCE cloud(PSPC) and region stateful PCE cloud(RSPC) are investigated.Moreover,we present the policy-enabled and constraint-based routing scheme base on the cooperation of PSPC and RSPC.Simulation results for verifying the performance of routing and control plane reliability are analyzed.
基金supported by the National Natural Science Foundation of China (61300216)the ‘13th Five-Year’ National Crypto Development Foundation (MMJJ20170122)+2 种基金the Project of Education Department of Henan Province (16A520013,18A413001)the Natural Science Foundation of Henan Polytechnic University (T2018-1)the Doctoral Fund of Henan Polytechnic University (B2014-044,B2016-36)
文摘Lattice-based hierarchical identity-based broadcast encryption(H-IBBE)schemes have broad application prospects in the quantum era,because it reduces the burden of private key generator(PKG)and is suitable for one-to-many communication.However,previous lattice-based H-IBBE schemes are mostly constructed in the random oracle model with more complex trapdoor delegation process and have lower practical application.A lattice-based H-IBBE is proposed in the fixed dimension under the standard model,which mainly consists of binary tree encryption(BTE)system,MP12 trapdoor function and ABB10b trapdoor delegation algorithm.First,this paper uses BTE system to eliminate the random oracle so that the scheme can be implemented under the standard model,and it also uses MP12 trapdoor function to reduce trapdoor generation complexity and obtains a safe and efficient trapdoor matrix;Second,this paper uses ABB10b trapdoor delegation algorithm to delegate user爷s private key,and the trapdoor matrices'dimensions are the same before and after the trapdoor delegation.Comparative analysis shows that trapdoor delegation process reduces complexity,and the size of cipher-text and trapdoor matrix does not increase with deeper trapdoor delegation process.This paper achieves indistinguishability of cipher-texts under a selective chosen-cipher-text and chosen-identity attack(INDr-sID-CCA)security in the standard model based on learning with errors(LWE)hard assumption.
