同构无线mesh网络中的端到端性能改进分析

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1、ABSTRACTWirelessMeshNetworkisnewbroadbandwirelessmulti-hopnetworkarcllitecture，providinghi曲一qualitywirelessbroadballdaccessservices，cansolVemedraⅥ，backsoftraditionalWLANaIldeXtendstheWLANr姐geofapplications矗0mthe”hotspots”tome”hotzone”，alsoreducethed印endenceonmecabl

2、enetworksothatnet、)l，orkperfomallceaIldcoveragehasbeenimproVed．InWirelessMeshNetwork，end．to．endcommullicationisgeneratedmainlybetweenmobileteHninalsandgateways，data丘．omthemobileteminaltotllegatewayor丘ommegatewaytothemobiletenninal．Meallwhile，theWhelessMeshNetworkis

3、di脑ent6．omthetraditionalWLANwithmeAPdirectlycomlectedtolli曲-speedwiredbackbonenetwork．Thelillkqualitya11dbandwidmofaccess1ink，betweenmeAPa11dtheSTA．andwirelessmeshbackbonenetworkbecomemebottleneckoft11enetworkend．to．endperfonnance．Theexistingresearchshowsmatreducin

4、gtheinterferencebetWeenthenodes，increasingthede孕eeofconc咐encyofdatasending，andselectingtheoptimalpathtoachieVeend．to-endco删：11unicationcalliInproVemeend．to．endperf-onIlanceoftheWirelessMeshNetwork．Researchonreducingnodeinterferencea11dimprovingtheconcurrencymainlyc

5、oncentratedinimprovingthespatialmultipleXingandch锄elutilization，andrelatedresearcheshaVeproposedtheimprovedalgorithm，miI越ngthelinktransrIlissionrateshouldbeingadaptedtothelinkquality，butitdon’tsolvetheproblemofconnictbetweenmechannels．Achieving戗lebalancebetweenmehi

6、ghspatialmultiplexingandhi曲一speeddatarateshouldtakemechoiceoftheperc印tiont11resholda11dthedatarateintoaccount．Researchonchoosingthebestpathtoachieveend．to—endcomrnunicationsfocusesonhowtochoosethebestAPasanaccesspoint，mostofthestrategyisbaSedonRSSIoronlytal(eintoac

7、countthequalityofmeaccesslink，butdidn’tconsidertheentire1ihkquality，itwouldseriouslya行ecttheend—to—endperfonnance．Thisp印erdoesresearchonimproVingtheend—to—endperfo姗anceofWirelessMeshNetworks．Firstly；researc血isdoneonf．actorsafjE．ectingmeend·to-endperf．o珊anceOfWirele

8、ssMeshNetworks衄ou曲theextensiveliteratures，reducinginterferencebe铆eenthenodes，improvingtransmissionconculTencyaIldch锄e1utilization．Theimpactofspat