Grid-Based Hybrid Network Deployment Approach for Energy Efficient Wireless Sensor Networks

Algorithm 5

Zone head reselection process.

(1) procedure  ZONE HEAD RESELECTION

(2) Input: Energy Level of Current Zone Head, ; Threshold Value, TV;

   Cumulative Value of each node, CV; Candidate Zone Head, CZH;

   difference of Initial and updated CV, ;

(3)  if    then

(4)   if    then

(5)     Ask first CZH to send updated CV

(6)     if  first CZH reply exceeds timer  then

(7)       Fetch CV from second CZH

(8)     else

(9)       Compare updated_CV and initial_CV

(10)       if    then

(11)        Select first CZH as new ZH

(12)        

(13)        

(14)       else

(15)        Fetch CV from second CZH

(16)       end if

(17)     end if

(18)   else

(19)     Remain as ZH

(20)   end if

(21)  else

(22)   Continue Transmission

(23)  end if

(24) end procedure

(25) Output: New Zone Head, .