A new method for multi-protocol label switching is presented in this study, whose core idea is to construct model for simulating process of accommodating network online loads and then adopt genetic algorithm to optimi...A new method for multi-protocol label switching is presented in this study, whose core idea is to construct model for simulating process of accommodating network online loads and then adopt genetic algorithm to optimize the model. Due to the heuristic property of evolutional method, the new method is efficient and effective, which is verified by the experiments.展开更多
A new coarse-grained differentiated least interference routing algorithm(CDLI) with DiffServ-Aware was presented.This algorithm is composed of off-line and on-line stages,taking into account both real-time traffic and...A new coarse-grained differentiated least interference routing algorithm(CDLI) with DiffServ-Aware was presented.This algorithm is composed of off-line and on-line stages,taking into account both real-time traffic and best-effort traffic.Off-line stage is to determine the shortest path set disjointed path(DP) database for real-time traffic,and to identify link critical value by traffic profile information of real-time traffic and DP database.On-line stage is at first to select route in the DP database for real-time traffic,if there is no path to meet the needs,the dynamic routing will be operated.On-line routing algorithm chooses the relatively short path for real-time traffic to meet their bandwidth requirements,and for best-effort traffic it chooses a lighter load path.The simulation results show that compared with the dynamic online routing algorithm(DORA) and constrained shortest path first(CSPF) algorithm,the new algorithm can significantly improve network throughput and reduce the average path length of real-time traffic.This guarantees quality of service(QoS) of real-time traffic while improving the utilization of network resources.展开更多
Silica-based planar lightwave circuit(PLC)devices can reduce transmission loss and cost in a quantum key distribution(QKD)system,and have potential applications in integration and production.A PLC-based quantum decodi...Silica-based planar lightwave circuit(PLC)devices can reduce transmission loss and cost in a quantum key distribution(QKD)system,and have potential applications in integration and production.A PLC-based quantum decoding integrated chip for multi-protocols is designed and fabricated,which is composed of variable optical splitters(VOSs),asymmetric Mach-Zehnder interferometers(AMZIs),and variable directional couplers(VDCs).Balanced pulse-pairs of four outputs are obtained simultaneously with measured delay times of 405 ps and 402 ps,respectively.The chip has advantages in achieving high interference visibility and low quantum bit error rate(QBER).展开更多
针对大型商业建筑中Modbus(Modicon Communication Bus,源自施耐德电气旗下Modicon公司开发的通信总线)、BACnet(Building Automation and Control Networks,楼宇自动化与控制网络)和KNX(Konnex,源于欧洲住宅与建筑自动化标准,整合EIB、...针对大型商业建筑中Modbus(Modicon Communication Bus,源自施耐德电气旗下Modicon公司开发的通信总线)、BACnet(Building Automation and Control Networks,楼宇自动化与控制网络)和KNX(Konnex,源于欧洲住宅与建筑自动化标准,整合EIB、BatiBus等协议)等异构协议并存导致的设备管理效率低下问题,探索高效的多协议融合与集成方案。采用分布式协议转换网关技术,设计轻量级数据解析算法和动态路由优化策略,构建实验平台对不同集成方案进行性能测试与对比分析。优化后的系统在单设备控制场景下响应时间降低75%,温度控制精度提升至±0.2℃,能耗预测准确率达93%,系统稳定性保持在99.98%。本文提出的多协议融合方案显著提升了大型商业建筑机电系统的运行效率和可靠性,为建筑智能化升级提供了可行的技术路径。展开更多
基金This work was supported by the National Natural Science Foundation of China (No10371097)Open Project of Com-putational Key Laboratory in Yunnan Provice
文摘A new method for multi-protocol label switching is presented in this study, whose core idea is to construct model for simulating process of accommodating network online loads and then adopt genetic algorithm to optimize the model. Due to the heuristic property of evolutional method, the new method is efficient and effective, which is verified by the experiments.
基金Project(2003AA781011) supported by the National High-Tech Research and Development of Program of China Project(20072022) supported by Science and Technology Foundation of Liaoning Province,China
文摘A new coarse-grained differentiated least interference routing algorithm(CDLI) with DiffServ-Aware was presented.This algorithm is composed of off-line and on-line stages,taking into account both real-time traffic and best-effort traffic.Off-line stage is to determine the shortest path set disjointed path(DP) database for real-time traffic,and to identify link critical value by traffic profile information of real-time traffic and DP database.On-line stage is at first to select route in the DP database for real-time traffic,if there is no path to meet the needs,the dynamic routing will be operated.On-line routing algorithm chooses the relatively short path for real-time traffic to meet their bandwidth requirements,and for best-effort traffic it chooses a lighter load path.The simulation results show that compared with the dynamic online routing algorithm(DORA) and constrained shortest path first(CSPF) algorithm,the new algorithm can significantly improve network throughput and reduce the average path length of real-time traffic.This guarantees quality of service(QoS) of real-time traffic while improving the utilization of network resources.
基金Project supported by the National Key Research and Development Program of China(Grant No.2018YFA0306403)the National Nature Science Foundation of China(Grant No.61805232).
文摘Silica-based planar lightwave circuit(PLC)devices can reduce transmission loss and cost in a quantum key distribution(QKD)system,and have potential applications in integration and production.A PLC-based quantum decoding integrated chip for multi-protocols is designed and fabricated,which is composed of variable optical splitters(VOSs),asymmetric Mach-Zehnder interferometers(AMZIs),and variable directional couplers(VDCs).Balanced pulse-pairs of four outputs are obtained simultaneously with measured delay times of 405 ps and 402 ps,respectively.The chip has advantages in achieving high interference visibility and low quantum bit error rate(QBER).
文摘针对大型商业建筑中Modbus(Modicon Communication Bus,源自施耐德电气旗下Modicon公司开发的通信总线)、BACnet(Building Automation and Control Networks,楼宇自动化与控制网络)和KNX(Konnex,源于欧洲住宅与建筑自动化标准,整合EIB、BatiBus等协议)等异构协议并存导致的设备管理效率低下问题,探索高效的多协议融合与集成方案。采用分布式协议转换网关技术,设计轻量级数据解析算法和动态路由优化策略,构建实验平台对不同集成方案进行性能测试与对比分析。优化后的系统在单设备控制场景下响应时间降低75%,温度控制精度提升至±0.2℃,能耗预测准确率达93%,系统稳定性保持在99.98%。本文提出的多协议融合方案显著提升了大型商业建筑机电系统的运行效率和可靠性,为建筑智能化升级提供了可行的技术路径。
