Cluster-based Routing Protocols for Heterogeneous Wireless Sensor Networks: A Review

Authors

M. Jaishree, Dr. P. Jayarajan
Department of Electronics and Communication Engineering Sri Krishna College of Technology, Coimbatore, Tamil Nadu, India.

Dr. R. Maheswar
Dean – Research (Assistant) & Professor (Associate), School of Electrical & Electronics Engineering, VIT , Bhopal, India.

Abstract

Wireless Sensor Networks (WSNs) are rapidly emerging in a variety of applications and have become a hot research area. WSNs includes many small sensor nodes that communicate with each other through routing protocols. Primarily, such network’s performance depends on the routing protocols that are divided into different categories such as flat routing, cluster-based routing, and location-based routing. Clustering becomes an important branch of routing protocols in WSNs among these groups. Since, it achieves high energy-efficiency and scalability. This protocol can utilize more number of sensor nodes to form the clusters and select the Cluster head (CH) to accumulate the data from the other cluster members. Then, the accumulated data are sent to the Base Station (BS) or another CH through the routing path. This is said to be cluster-based routing protocol. This paper explains the detailed survey on cluster-based routing protocols for WSNs. It also discusses the benefits and disadvantages of WSN clustering-based routing protocols. Eventually, a full review is completed and few approaches are proposed to boost network performance as potential directions.