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

Algorithm 1

Pseudocode for the GWO [31].

Initialize the Grey Wolf population and algorithm parameters

Evaluate the fitness of each search agent

Initialize the first best solution as ,

Second best solution as and

Third best solution as

While ( number of iteration or stop criteria obtained)

   For

      Update the current search agent position by equation (7)

   End for

   Evaluate the fitness

   Update the coefficient vector , and

   If any better solution then update the best agents , ,

End while

   Stop the process and visualize the first best agent found so far