Congestion avoidance in DEC protocol using Leaky Bucket Algorithm
Abstract
A wireless sensor network is vital in various fields and entails of a large number of sensor nodes. These nodes perform multiple functions, such as sensing, processing, communication, and power management. A substantial part is transferred data, which moves from source to destination. Congestion will occur at the cluster head and during data transfer between nodes. Either resource allocation or traffic division will cause congestion. The main reason for packet loss and the need for retransmission are due to traffic imbalance and congestion. To avoid such circumstances an efficient flow control and congestion controlling schemes need to be adapted. To manage congestion control, a limited number of wireless sensor networks with different protocols are employed. The Deterministic Energy Efficient Clustering (DEC) protocol, which relies entirely on residual energy, is considered to minimize energy consumption. This protocol discards the leaky bucket algorithm. Our idea offers a solution to address traffic congestion and makes improvements to the situation in the event that it arises. Experiments using simulation show that the suggested method can considerably advance increases in lifetime, energy and throughput.
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