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Research And Simulation Of An Inter-cluster Routing Protocol DLCR Based On Dynamic Layer

Posted on:2015-12-03Degree:MasterType:Thesis
Country:ChinaCandidate:L L SongFull Text:PDF
GTID:2298330467455803Subject:Computer technology
Abstract/Summary:PDF Full Text Request
Wireless Sensor Networks is a self-organizing multi-hop system, which consists of a largenumber of sensor nodes is formed by wireless communications, it is possible to realize thecollection of data, the quantization, the integration processing and transmission. WSN routingprotocol is mainly responsible for establishing a stable transmission link, among the sensor nodesand between sensor nodes and base station to set up reliable data transmission, Its performance to alarge extent determines the overall performance of the network. So,this paper focuses on the routingalgorithm researches of Wireless Sensor Networks.Under great consideration of clustering routing protocol LEACH-C, the paper presents adynamic layer-based Wireless Sensor Network routing algorithm DLCR,which includesinter-cluster routing mechanism based on cluster heads election mechanism and the residual energyand distance to protect the sensor nodes energy balance, so as to improve the whole networklifetime.DLCR candidates cluster heads election algorithm based on residual energy, using an efficientDLCR elected cluster heads election algorithm balances geographical distribution of cluster headnodes, preventing the cluster head nodes in the network from a centralized area. Cluster heads allotcommunication slots according to the numbers of nodes in the cluster, nodes in the cluster makeonly one node in the cluster-hop data transmission with the cluster heads in the corresponding timeslot,the cluster heads enter the sleep state in the other slots.DLCR inter-cluster routing algorithm is an algorithm to improve the network energy imbalanceshortcomings for Multi_Hop algorithm and Single_Hop algorithm.By radio model of first-orderanalysis, we can draw a certain distance from the BS within a Single_Hop routing saves moreenergy than the Multi_Hop routing. In this paper, the monitoring area to the base of a circle dividesconcentric rings, each ring treated as a layer.In the early network initialization period, cluster headsexecutes Multi_Hop, routing mechanism according to the first layer of inter-cluster algorithm. Bythe end of each round the base station calculates the average energy consumption by the baseadjustment factor control layer near the base and gradually begins to perform single-hop routing.Not only relieve the’communication hot zone ‘problem, but also to avoid the cluster head fartheraway from the base station directly to large energy-consuming and transmission of data base, toacquire the purpose of balancing energy distribution network. Simulation results show that DLCRselects dynamically through routing layers, co-ordinats and saves the network energy, improvesthe network performance and prolong its life cycle.
Keywords/Search Tags:Wireless Sensor Network, routing protocols, dynamic layers, adjustment factor, network load balancing
PDF Full Text Request
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