The expressway traffc incidents have the characteristics of high harmful, strong destructive and refractory.Incident detection can guarantee smooth operation of the expressway, reduce traffc congestion and avoid secon...The expressway traffc incidents have the characteristics of high harmful, strong destructive and refractory.Incident detection can guarantee smooth operation of the expressway, reduce traffc congestion and avoid secondary accident by informing the accident, detection and treatment timely. In this paper, an incident detection method is proposed using the toll station data that takes into account the traffc ratio at the entrances and crossway in the network. The expressway traffc simulation model is improved and a simulation algorithm is established to describe the movement of the vehicles. A numerical example is experimented on the expressway network of Shandong province. The proposed method can effectively detect the expressway incidents, and dynamically estimate the traffc network states so as to provide advice for the highway management department.展开更多
A traffic management scheme in serial RapidlO （SR10） interconnect is proposed to deal with the performance degradation caused by noise and electromagnetic interference （EMI）, which is generated by hardly avoidable...A traffic management scheme in serial RapidlO （SR10） interconnect is proposed to deal with the performance degradation caused by noise and electromagnetic interference （EMI）, which is generated by hardly avoidable errors of hardware implementation and tough working environment. The main idea of this scheme includes adaptive speed transition and freeze-acknowledgement （freeze-ACK）. Adaptive speed transition can improve throughput and reduce delay in high bit error rate （BER） environment. Simultaneously, freeze-ACK is adopted to conquer frequent usage of feedback channel. Simulation shows that the scheme of combining adaptive speed transition with freeze-ACK offers great performance improvement in SRIO network.展开更多
Given the global increase in remote work with the COVID-19 pandemic and deperimeterization due to cloud deployment of next generation frewalls,the concept of a next generation firewall is at a breaking point.It is bec...Given the global increase in remote work with the COVID-19 pandemic and deperimeterization due to cloud deployment of next generation frewalls,the concept of a next generation firewall is at a breaking point.It is becoming more dificult to define the barrier between the good and the bad.To provide the best security for an endpoint with minimal false positives or false negatives it is often necessary to identify the communicating endpoint application.n this study,we present an analysis of key research and methods for providing endpoint aware protection in the context of a next generation frewall We examine both academic research as well as state-of-the-art of the existing next generation firewall implementations.We divide endpoint application identification into passive and active methods.For passive endpoint application identification,we study several traffc fingerprinting methods for different protocols.For active methods we consider active scanning,endpoint metadata analysis and content injection and reference existing implementations.We conclude that there are several open areas for future research,and that none of the considered methods is a silver bullet solution for endpoint aware inspection in the context of a next generation firewall.To our best knowledge,this is the first study to examine current research and existing implementations of endpoint aware inspection.展开更多
基金Supported by the National Natural Science Foundation of China under Grant Nos.71871130,71471104,71771019,71571109the University Science and Technology Program Funding Projects of Shandong Province under Grant No.J17KA211the Project of Public Security Department of Shandong Province under Grant No.GATHT2015-236
文摘The expressway traffc incidents have the characteristics of high harmful, strong destructive and refractory.Incident detection can guarantee smooth operation of the expressway, reduce traffc congestion and avoid secondary accident by informing the accident, detection and treatment timely. In this paper, an incident detection method is proposed using the toll station data that takes into account the traffc ratio at the entrances and crossway in the network. The expressway traffc simulation model is improved and a simulation algorithm is established to describe the movement of the vehicles. A numerical example is experimented on the expressway network of Shandong province. The proposed method can effectively detect the expressway incidents, and dynamically estimate the traffc network states so as to provide advice for the highway management department.
基金supported by the Korean Electronics and Telecommunications Research Institute,the Hi-Tech Research and Development Program of China (2006AA01Z283)the National Basic Research Program of China (60772113)
文摘A traffic management scheme in serial RapidlO （SR10） interconnect is proposed to deal with the performance degradation caused by noise and electromagnetic interference （EMI）, which is generated by hardly avoidable errors of hardware implementation and tough working environment. The main idea of this scheme includes adaptive speed transition and freeze-acknowledgement （freeze-ACK）. Adaptive speed transition can improve throughput and reduce delay in high bit error rate （BER） environment. Simultaneously, freeze-ACK is adopted to conquer frequent usage of feedback channel. Simulation shows that the scheme of combining adaptive speed transition with freeze-ACK offers great performance improvement in SRIO network.
文摘Given the global increase in remote work with the COVID-19 pandemic and deperimeterization due to cloud deployment of next generation frewalls,the concept of a next generation firewall is at a breaking point.It is becoming more dificult to define the barrier between the good and the bad.To provide the best security for an endpoint with minimal false positives or false negatives it is often necessary to identify the communicating endpoint application.n this study,we present an analysis of key research and methods for providing endpoint aware protection in the context of a next generation frewall We examine both academic research as well as state-of-the-art of the existing next generation firewall implementations.We divide endpoint application identification into passive and active methods.For passive endpoint application identification,we study several traffc fingerprinting methods for different protocols.For active methods we consider active scanning,endpoint metadata analysis and content injection and reference existing implementations.We conclude that there are several open areas for future research,and that none of the considered methods is a silver bullet solution for endpoint aware inspection in the context of a next generation firewall.To our best knowledge,this is the first study to examine current research and existing implementations of endpoint aware inspection.
