Recent advancements in clustering protocols for wireless sensor network

Wireless sensor network is an unionized structure that's formed via-massive wide variety of small lightweight densely deployed sensor nodes in hostile environment for monitoring tracking and detection and a sink node for gathering the sensed data for decision making process. As sensor nodes' batteries, having short duration of energy and can't be recharged. Hence, with the view to maintain network lifetime acceptably high, it emerge noticeably important to have specialized energy aware routing protocols to attain high scalability in such environments. Rather than direct and flat routing, hierarchical cluster based routing protocols make great extent contribution to increment the overall system scalability, robustness, lifetime, and energy efficiency, and also does load balancing and data aggregation with the intention to decrement the number of messages forwarded to the BS. This paper surveys a comprehensive review on recently discovered routing protocols proposed for clustering using various approaches for cluster head selection, for forming clusters and for routing the data, along with their advantages.