2 research outputs found
A layer 3 movement detection algorithm driving handovers in mobile IP
The evolution and the spreading of wireless access technology and the consequent increase of user mobility will make handover
procedures critical for the provision of Quality of Service in the next generation wireless Internet. Often, layer 3 handovers are supposed to
be driven by access layer procedures. In this way, the movement detection delay can be reduced, but at the expenses of making the Mobile IP
protocol dependent of lower layer implementations. Furthermore, this approach may not be effective when users roam among heterogeneous
networks. Nevertheless, movement detection algorithms, which operate at the Mobile IP layer, imply appreciable delays, usually intolerable
for real time services.
In this paper, we propose a Mobile IP handover scheme based on a novel movement detection algorithm at layer 3, able to timely manage
migrations by exploiting advertisements losses, combined with a two-timers mechanism.
We analyze the performance of our algorithm in terms of handover delay and throughput, and we show that our solution is able to decrease
the movement detection delay as much as 47% with respect to other literature solutions that pursue similar approaches. In addition, this
feature implies also higher values of the throughput seen by the TCP layer