Survey on Various Congestion Control and Detection Protocols in Wireless Sensor Networks

People wants high-speed communication for huge amount of data in wireless sensor networks therefore congestion control protocols plays an important role in this field. Generally in wireless sensor networks (WSNs), when all the nodes are obtusely apportioned then congestion take place and letter on a high rate of flow draw near the sink imputable to convergent nature of upstream traffic. Congestion is one of the most important problem in WSNs and due to congestion rates of packets loss is increased. Therefore more energy is required even to process a small amount of data so it may causes wastes of energy. The main causes of congestion includes packets delay time, increase in collision, decreases Network lifetime, efficiency of energy and minimization the overall quality of a channel. As a result we need to control Congestion in WSNs with respect to packets delay and packets loss along with throughput or link utilization to extend lifetime of a system and to improve the Quality of Service QoS, and Fairness. This paper generally represent different congestion control approaches and it also includes the contrast study related to the features and theme of congestion control protocol for wireless sensor network that are accessible in the field.