The integration of wireless LANs (WLANs) and 3G systems performed at core network level requires very little modifications to the current 3GPP architecture and provides a large set of benefits: seamless service integration, exploration of user mobility by applications, seamless use of different radio access network (RANs), easy availability of current services such as Short Message Service (SMS...

The local and premises wireless networks have been expanding into many areas. The core network access point or basic station infrastructure can be made on wireless systems, on fixed cable systems with metallic twisted pairs, and, prospectively with optic fibers. The VDSL2 line systems with VDMT modulation and line bounding will be used for a data speed of hundreds Mb/s and distance between acti...

A key word describing next-generation wireless communications, so called 4G, is “seamless.” As part of the eJapan Plan promoted by the Japanese Government, the MIRAI (Multimedia Integrated network by Radio Access Innovation) project is aiming at the development of new technologies that will enable seamless integration of various wireless access systems for practical use by 2005. First, this pap...

This paper discusses how ad-hoc Personal Area Network (PAN) based on Bluetooth technology may connect to external networks. We assume that the Bluetooth network (piconet) is formed by the automatic SAPIFO procedure [4], that one or more piconet devices have access to external networks, and that IPv4 is used for external communication. Bluetooth have specified a PAN profile[2] for IP over Blueto...

A viral broadband network is a community based wireless mesh, which grows organically and utilizes the aggregate resources of the users in order to provide broadband Internet access. Effectively, the users themselves are turned into service providers, leveraging the network access of the subset of the user population. We present the case for viral broadband in the socioeconomic context of broad...