Mobility

Efficient Macro Mobility Management for GPRS IP Networks

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Executive Summary

Mobile IP has several inefficiencies, and was not originally designed for situations where both peers are highly mobile. The paper presents a mobility management solution that retains compatibility with existing Internet protocols, whilst increasing the efficiency of communications between two GPRS mobile hosts. The proposal eradicates triangle routing and minimizes handoff latency. The paper shows by numerical analysis that the routing optimization improves the performance of TCP controlled data flows, reducing buffering requirements and minimizing the recovery time after a handoff occurs.

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