Mathematical Problems in Engineering

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.
TimeReal RSSIPredicted RSSI using
CF-PSO		Predicted RSSI using
RBF
AP1AP2AP3AP4AP1AP2AP3AP4AP1AP2AP3AP4
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