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In this paper, we propose a new naming system to split an address into separate Identifier and Locator and a network architecture based on our naming concept, in order to support mobility and seamless communication. Also our solution aims to solve the scalability problem as well as provide the way to control the traffic under the multi-homing condition. Our solution consists of three core concepts...
In future mobile systems, various access networks will be used and the usability of a mobile node (MN) with the access networks will be higher. When a MN is connected to several access networks simultaneously, it may hand over from one access network to the other according to the connectivity to the access network. In order to keep communications even during handover, the mobility of MNs and the continuous...
A video IP telephony service, as an enhanced service of voice over IP(VoIP) migrated from public switched telephone network (PSTN), is a representative multimedia over IP (MoIP) service of next generation network (NGN) for the mass market. Recently a leading telecommunication operator has constructed NGN and has launched a commercial video IP telephony service. This service is regarded as one of the...
Video teleconference technology has been around for some time. However, recent developments in network and computing technology made it possible to handle very high quality image, expanding the usage of the remote video from mere personal presence to sophisticated remote collaboration. Medical application such as remote live surgery is a good example. In this paper, we discuss two technical issues...
Recently, telecommunications network is considered to be evolving to the Next Generation Network(NGN) which capable of converging heterogeneous networks and provides converged services. The leading telecommunication operators have already tried to construct an NGN. It is one of the trends that DiffServ-aware MPLS is adopted as an NGN core network technology. Resource and Admission Control Function(RACF)...
To understand user behavior and usage pattern is critical for not only the deployment, such as load balancing and development, but also the research and simulation of new technology. In this research, we traced and characterized the usage pattern of mobile IP in campus network. The data, which have generated by 1567 users from 228 access points and home agents in 85 buildings, have collected since...
Conceptually the same as a Next-Generation Network, the Broadband convergence Network (hereinafter referred to as "BcN") refers to a network developed to be suitable for an environment in which there is a convergence between wired and wireless communications and broadcasting. The BcN is being prepared as the next phase of super high speed Internet. As part of the work of BcN construction,...
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