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1、ComparisonsbetweenLowPowerWirelessTechnologiesBluetoothlowenergy,ANT,ANT+,RF4CE,ZigBee,Wi-Fi,Nike+,IrDAandNFCPhillSmithMarketingManagerHBU,CSRplcWhitepaperAbstractThiswhitepaperdescribesManyinnovativenewusecasesarenowbeingmadepossiblewiththethedifferencesbetweenintroductionofultralowpowerwirelesschi
2、psets.Untilrecently,theonlywayvariouscompetingtoachievedatatransferbetweenasensorandclienthasbeentousewires,wirelesstechnologiesinormanuallycollectdatafromaloggingdevice.Wirelesstechnologieshavetheultralowpowermarketbeenavailablefordecades.However,theytendtousesignificantamountsofplace.powerandneeds
3、pecializedequipmenttoestablishcommunications.Mosttargetmarketsarecharacterizedbyperiodictransferofsmallamountsofsensorinformationbetweensensornodesandacentraldevice.Someidentifiedendproductsthatmayimplementalowpowerradiosystem,includecellphones,healthandfitnessdevices,homeautomation,heating,ventilat
4、ing,andairconditioning(HVAC),remotecontrols,gaming,humaninterfacedevices(HID),smartmeters,paymentandmanyothers.Theseapplicationsareallconstrainedbythefollowingcriticalkeyrequirements:ultralowpower,lowcostandphysicalsize.Theultralowpowerrequirementismainlyduetotargeteddevicesneedingtooperateforextend
5、edperiodsoftimefromcoincellsorenergyscavengertechnology.Apartfromalowchipsetcosthavingobviousadvantages,overallproductexpenseislargelyaffectedbythepowersource.Forexample,ifashoppingmallhasawirelessbeaconineveryshopandbatteriesneedreplacingregularly,themaintenancecostwillsoonoutweightheadvantagesofsu
6、chatechnologybeingdeployed.Thisdocumentanalysestheprosandconsofvariouslowpowerwirelesstechnologiesandleavesituptothereadertodecidewhichtechnologyismostsuitablefortheirintendedproduct.WhitepaperTableofContentsAbstract....................................................................................
7、...............................................................2BackgroundonBluetoothlowenergy..................................................................................................5WhatisA
