Performance Evaluation of Token Bucket based Congestion Control Protocol for Wireless Sensor Networks

The distinctive characteristics of WSN such as for instance coherent nature of traffic to base station that happens through its many-to-one topology and collision in physical channel are main factors behind congestion in wireless sensor networks. Also when sensor nodes inject sensory data into network the congestion is possible. Congestion affects the continuous flow of data, loss of information, delay in the arrival of data to the destination and undesirable usage of large amount of energy in the nodes. Therefore Congestion in wireless sensor networks (WSN) must be controlled to be able to prolong system lifetime, improve fairness, high energy-efficiency, and improve quality of service (QoS). In this paper, main focus is on improving the PASCCC further by utilizing token bucket algorithm in place of priority queues. This work in addition has dedicated to the inter cluster data aggregation to boost the outcome further. The objective is to stop congestion utilizing the token bucket algorithm.

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