Research Article
A Novel Model on Curve Fitting and Particle Swarm Optimization for Vertical Handover in Heterogeneous Wireless Networks
Table 1
Real and predicted RSSI values.
| Time | Real RSSI | Predicted RSSI using CF-PSO | Predicted RSSI using RBF |
AP1 | AP2 | AP3 | AP4 | AP1 | AP2 | AP3 | AP4 | AP1 | AP2 | AP3 | AP4 |
| 1 | −20 | −29 | −27 | −98 | | | | | | | | | 1.7 | | | | | −23.5 | −33.1 | −29.6 | −96.4 | −38.2 | −43.8 | −27 | −98 | 2 | −27 | −36 | −31 | −97 | | | | | | | | | 2.5 | | | | | −28.5 | −34.8 | −37.4 | −95.3 | −34.5 | −33 | −31 | −97 | 3 | −30 | −37 | −40 | −96 | | | | | | | | | 3.2 | | | | | −32.5 | −35.8 | −45.2 | −95 | −30 | −37 | −40 | −96 | 4 | −33 | −37 | −60 | −94 | | | | | | | | | 4.4 | | | | | −38.3 | −37.5 | −59.1 | −94.8 | −33 | −46.7 | −60 | −94 | 5 | −38 | −38 | −68 | −93 | | | | | | | | | 5.6 | | | | | −43.3 | −40.4 | −71.9 | −93.5 | −38 | −45.6 | −68 | −93 | 6 | −45 | −40 | −80 | −91 | | | | | | | | | 6.8 | | | | | −47.9 | −45.1 | −82.2 | −89.9 | −45 | −40 | −64.6 | −92.9 | 7 | −50 | −45 | −81 | −90 | | | | | | | | | 7.5 | | | | | −50.6 | −48.9 | −86.5 | −86.6 | −49 | −45 | −81 | −90 | 8 | −57 | −50 | −87 | −86 | | | | | | | | | 8.6 | | | | | −54.9 | −56.2 | −90.5 | −79.3 | −57 | −50 | −87 | −86 | 9 | −57 | −60 | −93 | −79 | | | | | | | | | 9.2 | | | | | −57.5 | −60.8 | −91.2 | −74.4 | −57 | −60 | −80.2 | −80.4 | 10 | −60 | −72 | −87 | −66 | | | | | | | | | 10.4 | | | | | −63.3 | −70.8 | −89.3 | −63 | −60 | −71.5 | −87 | −66 | 11 | −66 | −79 | −85 | −52 | | | | | | | | | 11.6 | | | | | −70.3 | −80.9 | −83.7 | −50.6 | −65.5 | −72 | −64.5 | −52 | 12 | −70 | −80 | −82 | −46 | | | | | | | | | 12.8 | | | | | −78.9 | −89.5 | −75.4 | −39 | −65.6 | −70.8 | −59.2 | −46 | 13 | −80 | −89 | −76 | −39 | | | | | | | | | 13.4 | | | | | −83.9 | −92.6 | −70.6 | −34.1 | −70.9 | −80 | −76 | −48.7 | 14 | −94 | −94 | −68 | −33 | | | | | | | | | 14.6 | | | | | −95.6 | −94.6 | −61.1 | −28.1 | −90 | −89 | −68 | −47.5 | 15 | −98 | −95 | −56 | −26 | | | | | | | | |
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