An Energy Efficiency Dynamic Routing Protocol for Farmland Moisture Sensor Networks

This article reports an Energy Efficiency Dynamic Routing Protocol for Farmland Moisture Sensor Networks (EEDRP-FMSN) to improve energy efficiency, which combined the characteristics of farmland wireless sensor network deployment model. The EEDRP-FMSN protocol made use of the characteristics that the position of the base station was fixed, and the next hop selection mechanism of the EEDRP-FMSN protocol considered communication quality among nodes, global routing information, residual energy of nodes, and so on. The next hop selection mechanism had the dynamic nature and stronger environmental adaptability to extend the life cycle of network. The EEDRP-FMSN protocol overcomes the shortcoming that capacity and bandwidth of the routing table correspondingly increased with more nodes joining the network. This article also simulated the performance of the EEDRP-FMSN protocol in different conditions and evaluated the performance from energy efficiency, packet energy consumption and packet distribution balance by comparing the EEDRP-FMSN protocol with DSDV, EAP protocols. Simulations indicated that the EEDRP-FMSN had more energy efficiency than the EAP and the DSDV. The EEDRP-FMSN protocol overcame the shortcomings, such as capacity and bandwidth of the routing table increased with more nodes joining the network. It had better scalability, and keeps network loading balance.