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aneffectiveremotecomputingsolutionforsmartphones
Cheng-LinTsao,
SandeepKakumanu,
RaghupathySivakumar
13
24
FERMI:
afemtocellresourcemanagementsystemforinterferencemitigationinOFDMAnetworks
MustafaY.Arslan,
JongwonYoon,
KarthikeyanSundaresan,
SrikanthV.Krishnamurthy,
SumanBanerjee
25
36
Wirelessaccess
WiFi-Nano:
reclaimingWiFiefficiencythrough800nsslots
EugenioMagistretti,
KrishnaKantChintalapudi,
BozidarRadunovic,
RamachandranRamjee
37
48
XPRESS:
across-layerbackpressurearchitectureforwirelessmulti-hopnetworks
RafaelLaufer,
TheodorosSalonidis,
HenrikLundgren,
PascalLeGuyadec
49
60
CRMA:
collision-resistantmultipleaccess
TianjiLi,
MiKyungHan,
ApurvBhartia,
LiliQiu,
EricRozner,
YinZhang,
BradZarikoff
61
72
Applications
SociableSense:
exploringthetrade-offsofadaptivesamplingandcomputationoffloadingforsocialsensing
KiranK.Rachuri,
CeciliaMascolo,
MircoMusolesi,
PeterJ.Rentfrow
73
84
Overlappingcommunitiesindynamicnetworks:
theirdetectionandmobileapplications
NamP.Nguyen,
ThangN.Dinh,
SindhuraTokala,
MyT.Thai
85
96
Detectingdriverphoneuseleveragingcarspeakers
JieYang,
SimonSidhom,
GayathriChandrasekaran,
TamVu,
HongboLiu,
NicolaeCecan,
YingyingChen,
MarcoGruteser,
RichardP.Martin
97
108
Iamtheantenna:
accurateoutdoorAPlocationusingsmartphones
ZengbinZhang,
XiaZhou,
WeileZhang,
YuanyangZhang,
GangWang,
BenY.Zhao,
HaitaoZheng
109
120
Cellularnetworks
Traffic-drivenpowersavinginoperational3Gcellularnetworks
ChunyiPeng,
Suk-BokLee,
SongwuLu,
HaiyunLuo,
HewuLi
121
132
MOTA:
engineeringanoperatoragnosticmobileservice
SupratimDeb,
KanthiNagaraj,
VikramSrinivasan
133
144
Anonymizationoflocationdatadoesnotwork:
alarge-scalemeasurementstudy
HuiZang,
JeanBolot
145
156
Infrastructurelessnetworking
Enhance&
explore:
anadaptivealgorithmtomaximizetheutilityofwirelessnetworks
AdelAziz,
JulienHerzen,
RubenMerz,
SevaShneer,
PatrickThiran
157
168
Scoop:
decentralizedandopportunisticmulticastingofinformationstreams
DinanGunawardena,
ThomasKaragiannis,
AlexandreProutiere,
ElizeuSantos-Neto,
MilanVojnovic
169
180
R3:
robustreplicationroutinginwirelessnetworkswithdiverseconnectivitycharacteristics
XiaozhengTie,
ArunVenkataramani,
ArunaBalasubramanian
181
192
Flooding-resilientbroadcastauthenticationforVANETs
Hsu-ChunHsiao,
AhrenStuder,
ChenChen,
AdrianPerrig,
FanBai,
BhargavBellur,
AravindIyer
193
204
Protocols
E-MiLi:
energy-minimizingidlelisteninginwirelessnetworks
XinyuZhang,
KangG.Shin
205
216
REfactor-ingcontentoverhearingtoimprovewirelessperformance
Shan-HsiangShen,
AaronGember,
AshokAnand,
AdityaAkella
217
228
Distributedspectrummanagementandrelayselectionininterference-limitedcooperativewirelessnetworks
ZhangyuGuan,
TommasoMelodia,
DongfengYuan,
DimitrisA.Pados
229
240
MAC/PHYadvances
Notimetocountdown:
migratingbackofftothefrequencydomain
SouvikSen,
RomitRoyChoudhury,
SrihariNelakuditi
241
252
Harnessingfrequencydiversityinwi-finetworks
ApurvBhartia,
Yi-ChaoChen,
SwatiRallapalli,
LiliQiu
253
264
Beamformingonmobiledevices:
afirststudy
HangYu,
LinZhong,
AshutoshSabharwal,
DavidKao
265
276
Physicallayer
FlexCast:
gracefulwirelessvideostreaming
SiripuramAditya,
SachinKatti
277
288
Across-layerdesignforscalablemobilevideo
SzymonJakubczak,
DinaKatabi
289
300
Practical,real-time,fullduplexwireless
MayankJain,
JungIlChoi,
TaeminKim,
DineshBharadia,
SiddharthSeth,
KannanSrinivasan,
PhilipLevis,
SachinKatti,
PrasunSinha
301
312
Theory
Understandingstatefulvsstatelesscommunicationstrategiesforadhocnetworks
VictoriaManfredi,
MarkCrovella,
JimKurose
313
324
Optimalgatewayselectioninmulti-domainwirelessnetworks:
apotentialgameperspective
YangSong,
StarskyH.Y.Wong,
Kang-WonLee
325
336
FundamentalrelationshipbetweenNodeDensityanddelayinwirelessadhocnetworkswithunreliablelinks
ShizhenZhao,
LuoyiFu,
XinbingWang,
QianZhang
337
348
部分带摘要：
Thispaperintroducesmodelsandasystemfordesigning802.11wirelessLANs（WLANs）usingflexiblechannelization--thechoiceofanappropriatechannelwidthandcenterfrequencyforeachtransmission.Incontrasttocurrent802.11systemsthatusefixedwidthchannels,theproposedsystem,FLUID,configuresallaccesspointsandtheirclientsusingflexiblechannels.Weshowthatakeychallengeindesigningsuchasystemstemsfrommanagingtheeffectsofinterferenceduetomultipletransmittersemployingvariablechannelwidths,inanetwork-widesetting.WeimplementedFLUIDinanenterprise-likesetupusinga50nodetestbed（withoff-theshelfwirelesscards）andweshowthatFLUIDimprovestheaveragethroughputby59%acrossallPHYrates,comparedtoexistingfixed-widthapproaches.
【1】P.Bahl,R.Chandra,T.Moscibroda,R.Murty,andM.Welsh.Whitespacenetworkingwithwi-filikeconnectivity.InSIGCOMM'
09.
【21】H.Rahul,F.Edalat,D.Katabi,andC.G.Sodini.Frequency-awarerateadaptationandmacprotocols.InMobiCom'
【23】K.Tan,J.Fang,Y.Zhang,S.Chen,L.Shi,J.Zhang,andY.Zhang.Fine-grainedchannelaccessinwirelesslan,SIGCOMM'
10.
TheincreaseinWiFiphysicallayertransmissionspeedsfrom1~Mbpsto1Gbpshasreducedtransmissiontimesfora1500bytepacketfrom12msto12us.However,WiFiMACoverheadssuchaschannelaccessandackshavenotseensimilarreductionsandcumulativelycontributeabout150usonaverageperpacket.Thus,theefficiencyofWiFihasdeterioratedfromover80%at1Mbpstounder10%at1Gbps.
Inthispaper,weproposeWiFi-Nano,asystemthatuses800nsslots}tosignificantlyimproveWiFiefficiency.Reducingslottimefrom9usto800nsmakesbackoffsefficient,butclearchannelassessmentcannolongerbecompletedinoneslotsincepreambledetectioncannowtakemultipleslots.Insteadofwaitingformultipleslotsfordetectingpreambles,nodesspeculativelytransmitpreamblesastheirbackoffcountersexpire,whilecontinuingtodetectpremablesusingself-interferencecancellation.Upondetectionofpreamblesfromothertransmitters,nodessimplyaborttheirownpreambletransmissions,therebyallowingtheearliesttransmittertosucceed.Further,receiversspeculativelytransmittheirackpreamblesattheendofpacketreception,therebyreducingackoverhead.WevalidatetheeffectivenessofWiFi-NanothroughimplementationonanFPGA-basedsoftwaredefinedradioplatform,andthroughextensivesimulations,demonstrateefficiencygainsofupto100%.
Contemporarywirelessmulti-hopnetworksoperatemuchbelowtheircapacityduetothepoorcoordinationamongtransmittingnodes.InthispaperwepresentXPRESS,across-layerbackpressurearchitecturedesignedtoreachthefullcapacityofwirelessmulti-hopnetworks.Insteadofacollectionofpoorlycoordinatedwirelessrouters,XPRESSturnsameshnetworkintoawirelessswitch.Transmissionsoverthenetworkarescheduledusingathroughput-optimalbackpressurealgorithm.Realizingthistheoreticalconceptentailsseveralchallenges,whichweidentifyandaddresswithacross-layerdesignandimplementationontopofourw
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