| T. Blackwell, K. Chan, K. Chang, T. Charuhas, J. Gwertzman, B. Karp, H.T. Kung, W.D. Li, D. Lin, R. Morris, R. Polansky, D. Tang, C. Young, J. Zao. Conference Proceedings of Usenix Summer 1994 Technical Conference. pp305-316
This paper describes the architecture and implementation
of a mobile IP system. It allows mobile hosts to roam between cells
implemented with 2-Mbps radio base stations, while maintaining
Internet connectivity. The system is being developed as part of a
course on wireless networks at Harvard and has been operational since
March 1995. The architecture scales well, both geographically and
in the number of mobile hosts supported. It supports secure short-cut
routine to mobile hosts using the existing Internet routing system
without change. The implementation demonstrates a robust, low
complexity realization of the architecture, and provides trade-off
opportunities between efficiency and cost. Measured performance of
the mobile system is generally excellent. The system can handle a
hight rate of location updates, and routes packets almost as
efficiently for mobile hosts as the Internet does for stationary
hosts. We observe reasonable TCP behavior during hand-offs.
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