The Network Attachment Subsystem (NASS) is introduced to the Next Generation Network (NGN) architecture to enable services independent from access networks and support nomadism for fixed terminals. The NASS is respons...The Network Attachment Subsystem (NASS) is introduced to the Next Generation Network (NGN) architecture to enable services independent from access networks and support nomadism for fixed terminals. The NASS is responsible for managing the users attached to the access network in terms of user authentication, allocation of the IP address, and location management. In NGN R1, Telecommunications and Internet Converged Services and Protocols for Advanced Networking (TISPAN) studied the internal architecture and external interface protocols of NASS and published the relevant technical specifications. In NGN R2, TISPAN focuses on the study of mobility and nomadism as well as the ability to support various access network architectures. There still remain several issues that need further study.展开更多
More and more embedded systems now support multimedia networking on the Ethernet or using the Wireless LAN （WLAN） technologies. An embedded system, typically designed with a low-performance microprocessor in order t...More and more embedded systems now support multimedia networking on the Ethernet or using the Wireless LAN （WLAN） technologies. An embedded system, typically designed with a low-performance microprocessor in order to reduce both power usage and cost, often shows poor performance on multimedia networking, This paper describes a case study of improving the TCP/IP networking performance of a real-world embedded uClinux multimedia system, which is configured with both a fast Ethernet and a Wi-Fi connection. This paper analyzes networking overhead of the embedded system, and provides specific methods to improve its networking performance based upon the analysis, Our benchmark results indicate that these methods can improve the multimedia networking throughput on the embedded system by about 1596 .展开更多
Crucial applications require direct and efficient access to emerging high-performance networks. This paper surveys the networking subsystem overhead for high-performance networking and the current operating system tec...Crucial applications require direct and efficient access to emerging high-performance networks. This paper surveys the networking subsystem overhead for high-performance networking and the current operating system techniques to address the overhead. This paper aims to identify a few directions for future research work.展开更多
文摘The Network Attachment Subsystem (NASS) is introduced to the Next Generation Network (NGN) architecture to enable services independent from access networks and support nomadism for fixed terminals. The NASS is responsible for managing the users attached to the access network in terms of user authentication, allocation of the IP address, and location management. In NGN R1, Telecommunications and Internet Converged Services and Protocols for Advanced Networking (TISPAN) studied the internal architecture and external interface protocols of NASS and published the relevant technical specifications. In NGN R2, TISPAN focuses on the study of mobility and nomadism as well as the ability to support various access network architectures. There still remain several issues that need further study.
文摘More and more embedded systems now support multimedia networking on the Ethernet or using the Wireless LAN （WLAN） technologies. An embedded system, typically designed with a low-performance microprocessor in order to reduce both power usage and cost, often shows poor performance on multimedia networking, This paper describes a case study of improving the TCP/IP networking performance of a real-world embedded uClinux multimedia system, which is configured with both a fast Ethernet and a Wi-Fi connection. This paper analyzes networking overhead of the embedded system, and provides specific methods to improve its networking performance based upon the analysis, Our benchmark results indicate that these methods can improve the multimedia networking throughput on the embedded system by about 1596 .
文摘Crucial applications require direct and efficient access to emerging high-performance networks. This paper surveys the networking subsystem overhead for high-performance networking and the current operating system techniques to address the overhead. This paper aims to identify a few directions for future research work.
