最大化Ad Hoc網絡生存期的可調節(jié)拓撲控制算法研究.pdf

1、湖南大學碩士學位論文最大化AdHoc網絡生存期的可調節(jié)拓撲控制算法研究姓名：葛靜巧申請學位級別：碩士專業(yè)：計算機科學與技術指導教師：張大方；李曉鴻20120428碩士學位論文AbstractTheadvancementofsomescientificdomains，includingmicroelectronicstechnologycomputertechnologyandwirelesscommunicationtechniques

2、andSOon，givesanimpulsetothegenerationanddevelopmentofAdHocnetworksAdHocnetworkisacollectionofdevicesthatareequippedwithwirelesscommunicationcapabilitiesformingamulti—hopandselforganizedwirelessnetwork，withouttheneedforaf

3、ixedinfrastructureWiththemeritsofflexibility，fastnetworkingandhighdemandingofsurvivabilityandSOon，itisappliedtomilitaryaffairsanddisastersavingfieldsbroadlyEachnodeinsuchanetworktypicallyoperatesonbatteriesandisthuslimit

4、edinitsactivelifetimeEvenonenodeoutofenergycanhaveimportanteffectonnetworkconnectivityandperformanceTherefore，inAdHocnetworks，maximizingthenetworklifetimeunderenergyconstrainednetworkisacriticalproblemInordertoextendnetw

5、orklifetime，manyalgorithmsinnetworklayershavebeenproposedAsoneofthemostimportanttechniquesinAdHocnetworks，topologycontrolcanbebeneficaltosavingenergiesofnodes，prolongingthenetworklifetimeandincreasingnetworkcapacityInthi

6、spaperthenetworktopologycontrolalgorithmisdiscussedaccordingtothecharacteristicsofAdHocnetworkInordertoprolongnetworklifetime，wepresentanadjustablelifetimeprolongingstructureforAdHocnetworkstocontroltopologyTheresearchwo

7、rkfocusesonthefollowingparts：(1)BysummizingcharacteristicsofwirelessAdHocnetworksandkeytechniques，makesuretheproblemtobesolvedandthesolutiontobeappliedFindthedrawbacksthroughtheresearchontheexistingapproachestotopologyco

8、ntrolwhichcanprolongnetworklifetimeandlaythefoundationforthefollowupwork(2)Throughtheresearchfoundthattheexistingtopologycontrolalgorithmsexistsomedrawkbacksasfollows：First，mostexistingapproachestotopologycontrolmainlyco

9、nsideredtopreserveminimumenergypathsintheresultingtopologystructureswhichmaynotallownetworkstorealizemaximumpotentiallifetimeSecond，formosttopologycontrolalgorithms，theenergymodeladoptedisquiteunrealisticWhenconsideringe