Priority aware Congestion Control scheme using Dual Thresholds

Abstract

Congestion control in wireless sensor networks is a challenging area owing to the fact that the resources such as storage capacity, processing capability, sensing capability and power are limited in the sensor nodes building the wireless sensor network. Congestion occurs in wireless sensor networks when data packets flow towards a node where the node buffers are full or nearly full. To address these challenges we propose a newer congestion controlling algorithm which monitors the buffer occupancy and adjusts traffic rate to increase throughput and save energy. It detects the level of congestion based on two different thresholds. It also takes care that more number of higher priority packets are received at the destination and the life of the network is increased.