A QoS-aware input-queued scheduling algorithm, called Smallest Timestamp First (STF), is proposed, which is improved upon iSLIP and can allocate bandwidth among inputs sharing a common output based on their reservatio...A QoS-aware input-queued scheduling algorithm, called Smallest Timestamp First (STF), is proposed, which is improved upon iSLIP and can allocate bandwidth among inputs sharing a common output based on their reservation by assigning suitable finishing tiniest-amps to contending cells. STF can also provide isolation between flows that share a common output, link. Misbehaving flows will be restricted to guarantee the behaving flows' bandwidth. Simulations prove the feasibility of our algorithm.展开更多
A power saving frequency difference controlling method was introduced by the double inverter and motor experiment system.The characters of the system under differ- ent loads were investigated.The theoretical analysis ...A power saving frequency difference controlling method was introduced by the double inverter and motor experiment system.The characters of the system under differ- ent loads were investigated.The theoretical analysis and experiment results show the frequency difference method is a ideal power saving speed regulation method for the dou- ble inverter and motor system.The experiment system is simply structured,convenient to operate and provides a new way of character testing for frequency conversion speed regulation.展开更多
A novel chromatic dispersion(CD) monitoring technique based on asynchronous amplitude sampling(AAS) is proposed for a higher modulation format and higher rate system.The dispersion and other impairment factors can be ...A novel chromatic dispersion(CD) monitoring technique based on asynchronous amplitude sampling(AAS) is proposed for a higher modulation format and higher rate system.The dispersion and other impairment factors can be separated with the definition of monitoring parameter M.A 400 Gbit/s 256 quadrature amplitude modulation(QAM)system is built using Optisystem 13.0 beta software.Simulations of CD monitoring technique for different bandwidths of sampling Gaussian filter,optical signal to noise ratios(OSNRs) and duty cycles are investigated,and the tolerance is also discussed.Simulation results show that the method can be less affected by noise,and a higher accuracy of 600 ps/(nm.km) can be achieved.The technique supports a wide range of data traffic and enhances operation flexibility of optical networks.展开更多
基金Supported by National Natural Science Foundation of China under Grant No.69896246
文摘A QoS-aware input-queued scheduling algorithm, called Smallest Timestamp First (STF), is proposed, which is improved upon iSLIP and can allocate bandwidth among inputs sharing a common output based on their reservation by assigning suitable finishing tiniest-amps to contending cells. STF can also provide isolation between flows that share a common output, link. Misbehaving flows will be restricted to guarantee the behaving flows' bandwidth. Simulations prove the feasibility of our algorithm.
文摘A power saving frequency difference controlling method was introduced by the double inverter and motor experiment system.The characters of the system under differ- ent loads were investigated.The theoretical analysis and experiment results show the frequency difference method is a ideal power saving speed regulation method for the dou- ble inverter and motor system.The experiment system is simply structured,convenient to operate and provides a new way of character testing for frequency conversion speed regulation.
基金supported by the National Natural Science Foundation of China(No.61274121)the Natural Science Foundation of Jiangsu Province(No.BK2012829)the Scientific Research Foundation of Nanjing University of Posts and Telecommunications(No.NY212007)
文摘A novel chromatic dispersion(CD) monitoring technique based on asynchronous amplitude sampling(AAS) is proposed for a higher modulation format and higher rate system.The dispersion and other impairment factors can be separated with the definition of monitoring parameter M.A 400 Gbit/s 256 quadrature amplitude modulation(QAM)system is built using Optisystem 13.0 beta software.Simulations of CD monitoring technique for different bandwidths of sampling Gaussian filter,optical signal to noise ratios(OSNRs) and duty cycles are investigated,and the tolerance is also discussed.Simulation results show that the method can be less affected by noise,and a higher accuracy of 600 ps/(nm.km) can be achieved.The technique supports a wide range of data traffic and enhances operation flexibility of optical networks.
