A novel circuit energy efficient protocol in wireless sensor networks

There are many strict constraints in the design of WSN such as small size, light weight, ultra-low energy efficiency and low cost. Among these energy efficiency should be considered as one of the most critical issues since it is impractical to replace batteries on thousands of microsensors. Furthermore, in some cases the microsensors may not be accessible for battery replacement. Therefore designing energy-efficiency protocols is crucial for prolonging the lifetime of WSN. This paper presents a probability matrix H to average power consumption of every sensor. Then a circuit routing protocol is proposed. The essence of this protocol is that electric circuit is equivalent to the sensor network, and the transmission information content is equivalent to the electric current; the path loss is equivalent to the resistance. Finally, the performance of the proposed protocol is evaluated and simulation results show that it can enhance the energy efficient of wireless sensor network.