System Design Based on Energy Efficiency in Wireless Sensor Networks
Wireless sensor network combines sensing,computation and communication. Duo to limited energy,energy efficiency of sensors is a main concern for the design of wireless sensor networks. One of the most important design criteria for this type of network is energy efficiency. Based on two linear traffic models and an extension of energy consumption model of the sensor node,we consider different multi-hop scenarios to compute the energy consumption and energy efficiency of the whole network. Through analyzing these results,we present two valid deployment mechanisms of sensor nodes. The first mechanism is that nodes are deployed with equidistant spacing;Another mechanism is that nodes are deployed with optimal spacing. Simulation results show that two mechanisms are good and useful with energy efficiency in wireless sensor networks.