1. Variable Initialization (K: Sensor node; Δt: Task; µ: Idle state; St: Synchronization time; Is: Idle state; Δtc: Total tasks & Os: Off state) 2. Input: (: Initial energy of sensor node;: Consumed energy in idle state) 3. Output: (: Sensor node lifetime) 4. For (;;) 5. Compute Δt 6. If K completes Δt then 7. K = µ // Sensor node goes to idle state temporarily to check its next task 8. // Sensor node checks its next synchronization time 9. Swamping // Sensor node goes from idle state to sleep state 10. Else if // Sensor node needs to continue task 11. End if 12. End if 13. Calculate // Lifetime of sensor node based on energy 14. For end |