Achieving all the time, everywhere access in next-generation mobile networks
ACM SIGMOBILE Mobile Computing and Communications Review
Integrated support for handoff management and context awareness in heterogeneous wireless networks
MPAC '05 Proceedings of the 3rd international workshop on Middleware for pervasive and ad-hoc computing
Context-aware handoff middleware for transparent service continuity in wireless networks
Pervasive and Mobile Computing
Supporting mobile ubiquitous applications with mobility prediction and soft handoff
SEUS'07 Proceedings of the 5th IFIP WG 10.2 international conference on Software technologies for embedded and ubiquitous systems
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Recently, the low price and the small size of the mobile device makes a great success in personal mobile communication. A lot of people use a cell phone, PDA, and laptop computer in their daily lives. Bluetooth which enables incompatible devices to communicate with each other over a wireless link can speed up the growth in popularity. BLUEPAC(BLUEtooth Public ACcess) [2] is designed to support IP over Bluetooth and provide users to access to the public network such as the Internet.Our work is motivated by the need for a fast handoff in BLUEPAC. A mobile device experiences frequent handoffs due to the short radius of the piconet which is about 10m. A handoff requires a connection establishment between a mobile device and a new base station which is is a time-consuming procedure in the frequency hopping system. This situation may cause many connection losses which hurt the network performance as a result.In this paper, we present a new scheme for improving the handoff performance. The basic idea is that a base station controller helps a mobile device to establish a connection to new base station by giving their addresses and clocks. Simulation results show that our scheme significantly reduces handoff delay and imposes the very light overhead on the base station.