Priority Based Congestion Control Protocol and Fair Rate Allocation in WSN

Due to event-driven nature of Wireless Sensor Network, network load enhances which leads to congestion. As a result of congestion, network suffers from energy wastage, throughput reduction and packet loss. In order to overcome these issues, we have proposed a Priority Based Congestion Control Protocol and Fair Rate Allocation in WSN. In the proposed technique, an efficient route establishment and auxiliary routing is used based on the priority of the traffic. To achieve the fair rate allocation to the flow, intermediates nodes are classified into near-source node and near-sink node. Based on the available bandwidth and incoming rate, near-source node fairly allocates available resources to avoid congestion. Near-Sink node estimate queue occupancy and allocate resources based on the level occupancy. Also, hop by hop backpressure signal is used to suppress the exceeded data.