Hideki Sunahara

VIP: a protocol providing host mobility

Mobile Computing has been a buzzword in the area of computer communications. A technology vital to mobile computing is how to communicate with mobile hosts. This paper proposes a protocol, Virtual Internet Protocol (VIP), that allows hosts to move transparently within the Internet. VIP is de ned as an instance of the virtual network protocol, the general protocol supporting mobile hosts. The virtual network protocol is based on the concept of a virtual network and the propagating cache method. VIP is scalable to the total number of mobile hosts and the scale of the Internet, is free from routing loops, and tolerant of loss of control packets. VIP is currently running on operating systems based on 4.3BSD UNIX. The VIP overhead is negligible when compared with IP.

DGPS and RTK Positioning Using the Internet

The Internet as a basis for Real-Time Kinematic (RTK) and differential Global Positioning System (DGPS) service provides many advantages for worldwide GPS users. Among these advantages are service unification, open architecture, bidirectional communication, and scalability. The current development of this service allows users to use RTK and DGPS through the Internet with conventional accuracy over the short and medium baselines. The perspective for this service lies in the field of wide-area augmentation systems (WASS). At this stage of the Internet-based RTK and DGPS service project, the general concept, system components, draft standards, and software are developed.

Lifeline communication system in the Internet

The spread of the Internet has made it important as a potential means of lifeline communication. The Internet can fulfill a role in the everyday life of citizens by offering lifeline communication services such as the police, ambulance, gas, electricity, water service when an emergency occurs. In these lifeline communications, a caller needs to be able to communicate with the nearby lifeline service agency the same as on PSTN (public switched telephone networks) without being consciously aware of the path the callers message is taking. Moreover, the lifeline service agency must be able to acquire the callers location and identity. However, it is very difficult to transfer these essential functions from the PSTN to the Internet without making significant changes because of the large differences between the PSTN and the Internet. We discuss how to obtain these functions for lifeline communications in the Internet. We further propose a model and implement a lifeline communication system on the Internet.

Message from the EUCASS 2010 Workshop organizers

A “ubiquitous networking” is a federated network technology which supports various enablers such as 3G mobiles, RFID tags, sensors, actuators, etc. These devices have large heterogeneity, such as associated with computing capability, geographical location, types of sensor information, as well as applications using those devices. We realize that ubiquitous networking has a lot of technical challenges, such as operating system, routing, device management architecture, security and privacy.

Proceedings - 2008 International Symposium on Applications and the Internet, SAINT 2008: Message from organizers of the second international workshop on practical applications of sensor networking PASN

It is pleasure to be able to hold one day workshop focusing on the practical of sensor networking technology at the SAINT2008. The digital information and communication infrastructure as empowered by Internet technology has already become a major part of the infrastructure platform of people’s daily activities and of working environment. The Internet is now mutating toward a new stage, which is a broadband and ubiquitous computing over the native Internet environment.