Handover mechanisms in next generation heterogeneous wireless ...

MULTI-INTERFACE MOBILE MODEL FOR MEDIA INDEPENDENT HANDOVER
Figure 7.7 The single-interface MH’s throughput
The end-to-end packet delay is defined as the packet travelling time from its data source
(CN) to its destination (MH). In the simulation, the TCP packet is checked for the
parameter. The simulation results of Figure 7.8 and Figure 7.9 show that the end-to-end
packet delay during handover is in proportion to transmission break interval. Intuitively,
handover causes longer end-to-end packet delay. Although dual-interface architecture
can reduce handover delay effectively (as illustrated in Figure 7.6), long end-to-end
packet delay is still incurred in the handover of the dual-interface MH. However, the
incurred delay can be noticeably reduced to 700ms if a dual-interface architecture is
enabled on the MH, in comparison to over 5s delay for the single-interface MH.
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