Performance Enhancement of Smooth Handoff in Mobile IP by Reducing Packets Disorder
ISCC '03 Proceedings of the Eighth IEEE International Symposium on Computers and Communications
Optimized Smooth Handoffs in Mobile IP
ISCC '99 Proceedings of the The Fourth IEEE Symposium on Computers and Communications
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When using the Mobile IP, which is the representative technology to secure the mobility in general IP networks, the packet loss during the handover is inescapable. To remedy the packet loss problem, the smooth handover was introduced. However, this solution is also flawed. In particular, the smooth handover causes the packet sequence to be disrupted during the packet forwarding procedure. In turn, it may result in the degradation of the network performance. The same problem also occurs in the HPi (High-speed Portable Internet) system; the next generation portable IP service system. The HPi system, which provides the high speed data service just like xDSL and leased line in wired internet, aims to guarantee the portability, mobility, and the differentiated service based on IEEE 802.16. In this paper, we will propose a handover mechanism and a packet sequence control algorithm that prevent the packet loss and the out-of-sequence packet problem for differentiated service in the HPi system.