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The Research Of Clustering Routing Algorithm Based On The Energy Balance Of Heterogeneous Wireless Sensor Networks

Posted on:2013-06-30Degree:MasterType:Thesis
Country:ChinaCandidate:Y ZhangFull Text:PDF
GTID:2248330374475072Subject:Computer software and theory
Abstract/Summary:PDF Full Text Request
Wireless sensor networks was first used in the military field, with the increased focus onindustry and academia and the technology matures, is now widely used in areas such asmilitary reconnaissance, environmental monitoring, smart home. The network consists ofsensor nodes, the appropriate computing and fusion of information will be perceived by themutual cooperation between the nodes, and eventually transferred to the base station, is theproduct of the combination of sensor technology, computer and communication technologies.Different from traditional wireless networks, wireless sensor networks are designed tocollect environmental information of the monitored area, rather than point-to-pointcommunication. Therefore, the layers of network protocol design should be data-centric. Dueto the energy of wireless sensor nodes, the computing power and communication range islimited, so efficient use of energy of nodes, thereby extending the life cycle of the network isa key issue in one of the wireless sensor network protocols. This paper starting from therouting protocol, classification and comparison of several typical routing protocol.Clustering routing protocol is very simple, hierarchical thinking of the nodes to facilitatetopology management, coupled with data aggregation technology makes it network a smallload, energy efficiency and other advantages, making it the fastest-growing routingtechnology for wireless sensor networks. LEACH protocol is a typical clustering routingprotocol, many clustering routing protocols are based on this protocol. Clustering routingprotocol proposed in this paper is based on the LEACH protocol, the LEACH protocol detailand pointed out that because of the assumption of isomorphic nodes in a heterogeneous nodesnetwork scenario may not play effectively. SEP protocol is designed for the twoheterogeneous network, it takes into account the initial energy of each node. In contrast, it isnot a rotation algorithm based on the number of nodes, but on the energy balance. In thisarticle, first of all, the promotion of SEP multi-level protocol of heterogeneous network. Onthis basis, the residual energy of node SEP-EC algorithm is proposed and a theoretical proof.Finally, we simulate several protocols in the NS-2simulation tool. To simulatehomogeneous, heterogeneous, grid-topology scenarios to prove the proposed SEP-ECclustering routing protocol, this protocol, under the premise to ensure data collection accuracy, can be effectively balanced energy distribution, and has a good scalability.
Keywords/Search Tags:Wireless sensor networks, Clustering routing protocol, Energy balance, LEACHprotocol
PDF Full Text Request
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