A Clustering Protocol for Wireless Sensor Networks Based on Energy Potential Field

Algorithm 1

       N( 𝑖, C[𝑛])

       //𝑖 is the cluster node id, 𝐶[𝑛] is a array of the cluster heads id

        {

       C[𝑛] = sort (C[𝑛]);

       //sort 𝐶[n] according to the order from smallest to largest

      find = 0;

        //find is a flag of searching success or not

      for 𝑗=1 to 𝑛

       {

       if (Ef(𝑖) ! = Ef(C[𝑗]));

       // Ef(𝑖) is the field strength of node i

      continue;

      else

      {

        find=1;

           return 𝑗;

            }

         }

          if (find !=1)

          Print (“Search fails!”);

       }