GWO-LPWSN: Grey Wolf Optimization Algorithm for Node Localization Problem in Wireless Sensor Networks

Table 2

Comparative analysis of mean localization error (MLE), computation time, and number of localized node (NL).

Anchor	PSO			MBA			GWO
	MLE (%)	Time (s)	NL	MLE (%)	Time (s)	NL	MLE (%)	Time (s)	NL
10	0.5559	4.17	132	0.6982	3.99	178	0.7771	1.98	185
20	0.5488	3.61	139	0.6422	2.48	186	0.7762	2.21	196
30	0.5357	3.03	142	0.6358	3.25	195	0.7758	2.60	213
40	0.4787	5.11	154	0.6169	2.47	205	0.7511	2.50	221
50	0.4594	4.59	161	0.5798	2.25	210	0.7043	2.37	234
60	0.4592	5.59	173	0.5747	3.33	240	0.7011	2.55	249
70	0.4445	5.01	182	0.5425	1.86	246	0.6983	1.72	262
80	0.4433	5.58	196	0.5369	4.13	251	0.6974	2.06	271
90	0.4247	5.22	208	0.5205	1.75	258	0.6779	1.51	279
100	0.3054	5.93	219	0.5021	2.55	260	0.6586	1.80	286