Time Synchronization Protocol for Wireless Sensor Networks with Node Monitoring

摘要

According to TPSN, it suffers from poor convergence, poor expansibility and poor robustness. This paper puts forward the ITPSN protocol, which makes the original single two nodes two-way messages exchange way into the third node monitor mode, greatly reduces the synchronous time, saves the time and energy for synchronization, adds the judgment of the node failure and treatment of node failure, and improves the robustness and expansibility. The simulation results show that ITPSN inherited TPSN's low energy consumption, low average errors and can effectively reduce the time and energy needed for synchronization, strengthening its robustness.