FLECH: Fuzzy Logic Based Energy Efficient Clustering Hierarchy for Nonuniform Wireless Sensor Networks

Algorithm 1

FLECH.

FLECH Algorithm:

  Input: A non-clustered WSN

  Output: Clustered WSN

  = Total number of nodes

  = Threshold value used for electing CH

 FCH = Array of final cluster heads

 FCM = Array of cluster members

  = sensor node

 for all the nodes in the networks

   if ()

     = probationary CH

   else

     = member

 for all the probationary CH nodes

    (i)    = residual energy of the node.

    (ii)   = Centrality of the node within its Network Dimension

    (iii) _to_BS = Distance to BS

    (iv) Chance = FuzzyChance(, , _to_BS)

    (v)  Send probationary_CHto all neighbor probationary CH nodes

    (vi) = list of all probationary_CH from neighbor nodes

    (vii) this = current sensor node

    if ()

     advertise Elected_CH

    else

     broadcasts Quit_CH

    end

 FCH = set of elected CH nodes

 FCM = set of non-CH nodes

 for all the cluster members

 send Join_Req to closest CH

 exit