A High QoS Cluster Routing Scheme for Wireless Sensor Networks in Smart Agriculture Application
摘要
In a wireless sensor network for precision agriculture application, sensor nodes are deployed either in a farmhouse or in a greenhouse for monitoring the soil properties like soil moisture, air temperature, humidity level, and pesticide level, etc. Measured data is communicated to a base station hub node, where it is utilized to accurately manage the irrigation, fertilization, and air conditioning systems in order to regulate the temperature and humidity levels within the greenhouse. This results in the application of appropriate inputs to the crops, ultimately improving their health and yield. The WSNs are designed with a focus on low power usage and high network throughput as two essential goals. This paper presents an energy efficient and high throughput cluster routing protocol for WSN in precision agriculture application. The proposed protocol incorporates a Multi-Attribute-Decision-Making (MADM) cost function that elects the cluster forwarder node for each new data transmission round by considering the node residual energy, the distance of the node from the hub, and the count of forwarder jobs already executed by the node in previous data transmission rounds. The selected cluster forwarder node gathers data packets from lower-level cluster child nodes and compiles a compressed data packet. To achieve this, the forwarder node excludes duplicate received data packets and then transmits the compressed data packet to the sink node, leading to improved energy efficiency through reduced data size. The proposed WSN data routing protocol showcases significant enhancements in network performance concerning network lifetime and data packet transmission rates when compared to other existing schemes.