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Approach On Optimization Of ZigBee Network Routing Algorithm

Posted on:2014-09-05Degree:MasterType:Thesis
Country:ChinaCandidate:H F LiuFull Text:PDF
GTID:2268330401950207Subject:Communication and Information System
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ZigBee is a low-cost, low-power, low-ate of new short-range wireless communicationstechnology, which is on the low-speed main wireless sensor and control networks and design,can be widely used in modern agriculture, automation practical applications of medical andother wireless communications. ZigBee network node because computing power andtransmission bandwidth is limited, and the ZigBee network nodes more battery power. ZigBeenetwork energy efficiency is directly related to the lifetime of the network, so the ZigBeenetwork routing technology research skills ZigBee network which is an important issue.This paper first introduces the basic concepts and ZigBee network protocol stack, andthen the current AODVjr based on ZigBee network routing algorithm and Cluster-Treerouting algorithm specific exposition, while focusing on analyzing the advantages anddisadvantages of the two algorithms. Combined with previous related work and limitations ofanalysis identified AODVjr algorithm and Cluster-Tree algorithm optimization direction.1, based on the hop limit and energy balance improved algorithm AODVjrThis article was found RREQ packet forwarding packets consumes a lot of energy.Established by reducing the RREQ packet forwarding packets to improve the ZigBee networkperformance objectives. Then by limiting long hops RREQ packet forwarding packets toreduce total energy consumption of ZigBee networks by introducing balanced forwardingdelay threshold energy of each node, making the individual nodes in the network will not beprematurely depleted.2, based on greedy strategy and energy balance of Cluster-Tree algorithmIn this paper, experimental analysis found that Cluster-Tree algorithm path is longer, thenetwork node energy consumption imbalance big two limitations. Then by introducingneighbors, according to the calculations Mhop value greedy strategy to find the optimal pathalgorithm is improved limitations. While reducing by eliminating meaningless neighbor nodecomputation, further reducing the overall energy consumption of ZigBee network. LGparameter reduction by introducing low-energy balance energy consumption of nodes node priority.
Keywords/Search Tags:ZigBee network, Cluster-Tree, AODVjr, neighbor table, depth, energy
PDF Full Text Request
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