| Wireless Sensor Network involves many disciplines and crosses multiple areas of research.It’s a self-organizing network mode, which consist of a large number of micro sensor nodes thatpocess of low cost, data processing and storage ability. Because the node resource is limited, insome applications, replacing the power supply is almost impossible, so how to reduce the powerconsumption and prolong the network life, then enhance the effective and improved data transferrate is impossible.The thesis’s designs a kind of node authentication mechanism and Adaptive gradient MACcontrol mechanism. Then, the paper designs an efficient Priority cluster model of Authenticationand Media Access Control based on Dijkstra Algrithm and LEACH Protocol--PAMDL. Theymain focus of research covers:1. According to the formation of clustering of PAMDL, Sink node assign a unique identityidentifier for each node, send the authentication information in real-time, and allow the safe nodejoin in the network.2. When clustering is completed, because of the large number of sensor nodes in the clust,so the algorithm use gradient adaptive access control strategy in order to transfer common node’sdata to the cluster heads, but node only work in gradient one.3. Sink node dynamically calculate the number of cluster heads on each round, and selectcluster heads according to the improved T(n) algorithm, common nodes rely on the priorityalgorithm and authentication mechanism joining in the clust. Common nodes in the clust formone layer, the cluster heads form other layer, Wireless Sensor Network transfer data based onhierarchical clustering network.In this paper, according to the above three aspects, new model balance the network nodeconsumption of energy and make the network’s survival time extended.At last, the simulation experiment shows that the PAMDL routing protocol can achieve theexpected target, which make the wireless sensor network overall performance improved. |
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