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Congestion Control in IoT


Muhammad Amer Saleem, Muhammad Sheraz Arshad Malik, Shakeel Waris, Sanam Barkat, Usman Sadaqat


Vol. 19  No. 2  pp. 56-60


Internet of things (IoT) is made of both constrained and unconstrained devices. These constraints include power, processing, and memory constraints. To perform well in a constrained environment, a congestion control mechanism must consider these constraints. Congestion in an IoT network causes a degrade in its quality of service (QoS). Quality of service includes different performance measures such as the loss of data packets, decrease in throughput and energy inefficiency etc. To cope with this issue many proposals describe congestion control (CC) techniques for IoT networks. Although enormous CC techniques have been proposed in different researches, but still there exists some issues that are not been fully catered yet. This survey presents a decent summary of different kinds of congestion detection and avoidance techniques been (or being) used in IoT networks. Each CC technique operates at some implicit assumptions about the IoT traffic type. These assumptions cause some CC schemes to perform well in certain scenarios but not in others. To measure performance of a congestion avoidance technique in a scenario, multiple performance metrics are proposed by different authors. We will briefly discuss reasonable number of performance evaluation metrics for CC techniques.


Congestion Control in IoT, Congestion Detection and avoidance in IoT, congestion in WSN