Energy Efficient Routing Protocols for WSN in IOT: A Survey

WSN has an extensive span of applications in several fields, be it in medical science, agriculture, telecommunications, etc. The currently rising applications of this are in the field of IOT, which lets interconnection of several things via the internet. Every technology that undergoes evolution comes up with many problems, and so are these. But restricted power of the battery is crucial for WSNs that in turn influences the longevity of the network. Clustering has unveiled noteworthy improvements to increase energy efficiency by increasing network’s lifetime. On the basis of clustering of nodes in WSN, hierarchical routing is considered a successful method in achieving a network that is much more energy-efficient. This paper provides an understanding of clustering besides various hierarchical routing protocols that have been used in WSN-IOT to enhance the performance of networks.