Intrusion Detection Algorithm for Mitigating Sinkhole Attack on LEACH Protocol in Wireless Sensor Networks

Algorithm 1

IDS Algorithm for Sinkhole Attack.

Begin

is the sensor network and be the total packets transmitted by the th CH in

is the total packets received by the th CH in

is the Cluster head Node ID

is the Intrusion ratio for the th CH

Repeat

 Time_delay (100)

 For ()

  Receive packets from the CHs’

  Calculate where

  If tends to ∞ then

   Corresponding is the sinkhole node

   Isolate

   Send warning message to the remaining cluster member nodes about

  Else

   Corresponding is the normal CH

  End if

 End for

 Until the nodes transmission process completes

 End