Enhanced PEGASIS using ant colony optimization for data gathering in WSN

Data gathering in an energy efficient and timely manner is one of the fundamental tasks of wireless sensor network (WSN). Applications where continual monitoring of inhabitable deployment area over a considerable time is required calls for proactive hierarchical data routing protocols. One of them i.e. PEGASIS routing protocol suffers from data redundancy and latency. This paper presents an enhanced version of PEGASIS (E-PEGASIS) which overcomes the drawbacks and is energy efficient. The simulation results indicate that E-PEGASIS extends the WSN lifetime in comparison to PEGASIS, Binary PEGASIS and LBEERA along with considerable reduction in data latency. The results are shown to be statistically significant.