Congestion Control in Wireless Sensor Network

Wireless sensor network also known as (WSN) is a broad research area with a lot of issues and challenges. With the passage of time, a lot of issues have been resolved, but there are still many awaiting. In WSN, there are different nodes connected to each other, creating an ad-hoc network. Each node collects data and send it to the destination (base station) via ad-hoc network. We face a lot of problems in localization of nodes and transportation of data. During transportation of data, many times we waste energy due to the large volume of data, causing packet drops and in result decrease the throughput of the network. In WSNs the congestion decreases the lifetime of nodes, it should be controlled in order to save energy and resources. Many aspects of the network can affect the congestion, such as rate of report, density of node, size of packet, etc. We will see the challenges we face and different techniques to control the congestion of WSN.