Research And Simulated Implementation Of Energy-Efficient Routing Technology For Industrial Wireless Sensor Networks

With the rapid development of computer, communication and network technology, the application field of wireless sensor network is more and more widely. In the industrial environment, faced with many difficulties and its bad environment, it will bring great advantage to make wireless sensor technology apply to industrial environment. However, the traditional routing mechanisms in wireless sensor networks have failed to meet the requirement of real-time of data transmission, reliability and energy conservation in industrial application field, due to the interference and the restricted energy resources of nodes. Unquestionably, the issue how to design energy-efficient routing technology for industrial wireless sensor networks has become a hot topic between experts and scholars.In this thesis, the characteristics of the classic AODV routing protocol are analyzed. According to the defects of AODV, an energy-equilibrium routing mechanism named EAODV for industria wireless networks is proposed. EAODV considers one of the main factors about the limited energy of nodes and improves the data delay forwarding mechanism, which can improve the life time of the whole network. In addition, according to the demand of energy saving of industrial wireless sensor network, a SELF healing routing mechanism based on energy is proposed. It chooses the appropriate routing from the source node to destination node according to the rest energy of node. To be sure the energy consumption equilibrium, it takes self adjusting mechanism, when the energy of some node less than energy threshold during data transmission, which can not affect the network due to the failure of a node. The routing mechanism can not only reduce the network packet loss rate and improve the effectiveness of the data transmission, but also prolong the network survival time.The routing mechanisms described above are implemented and the performance is evaluated and analysis with NS2simulator. Compared with the existing routing mechanisms AODV, the designed mechanisms in this thesis can not only achieve reliable data transmission with low energy consumption and low latency but also prolong the network lifetime.