Handover mechanisms in next generation heterogeneous wireless ...

TRUST ASSISTED HANDOVER ALGORITHM FOR RELIABLE HANDOVER
density scenarios (demonstrated in Figure 5.10). However, in the low trust density
scenarios, Figure 5.10 shows that the ETS has much limited impact on handover delay.
The widening of the ETS in the THOA would result in a better load balance pattern
among the access networks as demonstrated in Figure 5.11. But, the LBF tends to go
into a stable state. Then, further increase of the ETS would deteriorate the performance.
This phenomenon manifests itself on the performance of both handover delay and LBF.
The simulation results give guidance on how the THOA can be tuned to meet the
performance requirements in various handover scenarios.
Figure 5.10 The effect of THOA ETS on handover delay
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