An Energy Consumption Assessment Method for WIFI Large-Scale Wireless Sensor Network Based on Dynamic Channel Energy Model

摘要

Energy efficiency is one of the most serious constraints for the deployment of large-scale wireless sensor network(WSN)significantly. However, an excellent strategy to raise energy efficient depends on a precise energy consumption assessment method. In this paper, an energy consumption assessment method based on dynamic channel energy model is proposed. Energy consumption is divided into two parts: static and dynamic. The former includes receiving, idle and clear channel assessment state, whose energy consumption is only related to a stationary working current and duration. Transmission energy consumption refers to dynamic energy consumption, function of which is described as a cubic function. The energy consumption calculation is adjusted to meet the transmission power dynamically and timely. Simulation results show that the dynamic energy consumption during transmission is summed accurately. Compared with the others,such as some simple energy models without dynamic case. It provides to support for the deployment of WIFI large-scale WSN.