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1、摘要ZigBee是一種新興的專為低速率無線個域N(LR．WPAN)-而設(shè)計的低成本、低功耗的短距離無線通信協(xié)議，能夠廣泛的應(yīng)用于軍事，工業(yè)，智能家居等領(lǐng)域。但由于ZigBee技術(shù)出現(xiàn)較晚，其規(guī)范及應(yīng)用仍在不斷的完善和發(fā)展之中。通過對Zigbee協(xié)議的網(wǎng)狀網(wǎng)絡(luò)組網(wǎng)方案的研究及仿真分析，提出了改進的組網(wǎng)方案，簡化了原方案中入網(wǎng)的流程，減小協(xié)調(diào)器對節(jié)點加入的處理時間。仿真發(fā)現(xiàn)改進的組網(wǎng)方案能有效的減少了入網(wǎng)延遲，避免了沖突。針對AODV算法高控制開銷的不足，提出了基于最快路徑的AODVjr算法，通過簡化路由發(fā)現(xiàn)和路由表、刪除Hell
2、o消息以達到降低控制開銷的目的。為了更進一步達到低控制開銷的目的，本文提出AODVjr算法和Cluster-Tree算法相結(jié)合的ZBR路由算法，該算法既具有AODVjr的路由尋優(yōu)的能力，又具有Cluster．Tree算法的無初始延遲的優(yōu)點。通過仿真表明，改進的算法能夠較好的達到設(shè)計要求，具備了實現(xiàn)的可行性。本文最后利用改進的組網(wǎng)方案和ZBR路由算法，首先利用NS2軟件對一個完整的Zigbee網(wǎng)絡(luò)的組網(wǎng)過程進行仿真，然后在Jennie5139開發(fā)板上實現(xiàn)了一個簡單的網(wǎng)狀網(wǎng)絡(luò)，并對該網(wǎng)絡(luò)做了相關(guān)的測試。關(guān)鍵詞組網(wǎng)方案，AODVjr
3、，ZBR，NS2仿真，JN5139ABSTRACTZigBeeisanewwirelesscommunicationtechnology，focusesonthefiledsoflOW—cost，low—powerconsumption，shortdistance，andespeciallyfortheLow—RateWirelessPersonalAreaNetwork(LR．WPAN)．itwidelyuseinmilitary、industryandintelligencehomeetc．However,duetolat
4、eemergenceofZigBeetechnology,thespecificationandapplicationisstillcontinuousimprovinganddeveloping．TheP印erresearchesandsimulatestheMeshnetworkestablishmentprogramundertheZigbeeProtocol，andthenproposesanimprovementprogram．Bysimplifyingtheprocessandreducingthecoordina
5、tortojoinonthenodesprocessingtime．Thesimulationfoundthattheimprovedprogramcaneffectivelyreducethedelayandavoidconflict．AgainsttheAODValgorithmfortheinadequacyofthehi曲controloverhead，SOhereproposesallimprovementroutingalgorithm，namedAODVjr．TheAODVjralgorithmbasesonth
6、efastestpathroutingbysimplifyingtheroutingdiscoveryandroutingtable，deletetheHellomessageinordertoachievethepurposeofreducingcontroloverhcad．TofurtherachievethelOWcontroloverhcad，thepaperusestheZBRroutingalgorithmwhichcombinatestheAODVjralgorithmandCluster-Tkealgorit
7、hm．TheZBRisacompromiseofthetwoalgorithms，notonlyhastheabilityofroutingoptimizationoftheAODVjr,butalsotheadvantageoftheCluster-Treesuchassimpleandnoinitialdelay．ThesimulationshowsthattheimprovedalgorithmCanbettermeetthedesignrequirements，withthefeasibilityofachieving
8、．11，theP印ersimulate：lpleteZigbeenetworkhenthePersimulatesacomoleteZigbeenetworkorocessbasedl，apontheNS2andbuildsasimpleZigbeeMeshnetworkon
