Duplex NECSampathRangarajanNECPrinceton ACM MobiCom NECLabsPrinceton ACM Background Background AP Ct il hlf p1 2 C urren i are d KhojastepourNECLaboratoriesAmerica Background Background AP Ct il hlf p ID: 851533
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1 Duplex KarthikSundaresanKhojastepourArya
Duplex KarthikSundaresanKhojastepourAryafar NECSampathRangarajanNECPrinceton ACM MobiCom NECLabsPrinceton ACM Background Background AP Ct il hlf p1 2 C urren i are d KhojastepourNECLaboratoriesAmerica Backgroun
2 d Background AP Ct il hlf p1 2 C urren i
d Background AP Ct il hlf p1 2 C urren i are d duplexhard interferencevery for power interference very : 75 for 15 power Transmittedinterferencecancellation interferencecan nificantl reduced y a g cancellationc
3 ircuit:e.g.cancellingantenna Khojastepou
ircuit:e.g.cancellingantenna KhojastepourNECLaboratoriesAmerica Background Background AP hlf p1 2 C urren w i are h a d duplexhard interferenceveryfor power interference very : for 15 power interferencecansigni
4 ficantlycancelledcancellationcircuit:e.g
ficantlycancelledcancellationcircuit:e.g.,cancellingantenna duplexcapacity? KhojastepourNECLaboratoriesAmerica Duplex Full Duplex Hardwarecomplexity performance,size,cost KhojastepourNECLaboratoriesAmerica Dupl
5 ex Full Duplex Hardwarecomplexity perfor
ex Full Duplex Hardwarecomplexity performancesize,cost AntennaConserved(AC) Antenna Conserved (AC) antennas KhojastepourNECLaboratoriesAmerica Duplex Full Duplex Hardwarecomplexity performancesize,cost AntennaC
6 onserved(AC) Antenna Conserved (AC) ante
onserved(AC) Antenna Conserved (AC) antennasConserved(RC) # KhojastepourNECLaboratoriesAmerica Duplex Full Duplex Hardwarecomplexity     AntCorrelation: performancesize,cost AntennaConserved(AC) = 0.01 An
7 tenna Conserved (AC) antennasConserved(R
tenna Conserved (AC) antennasConserved(RC) el use) FD-RC FD-AC Significant gains ty (bit/chan n Significant gains Limitedgainsantennas gains moreantennas 0 5 0 Capaci gains more antennas KhojastepourNECLabora
8 toriesAmerica Number of Antennas Duplex
toriesAmerica Number of Antennas Duplex Full Duplex Hardwarecomplexity     AntCorrelation: = 0.01performancecost AntennaConserved(AC) el use) FD-RC FD-AC Antenna Conserved (AC) antennasConserved(RC) Regio
9 ns of pronounced full duplex gains in b
ns of pronounced full duplex gains in bth RC d AC mdls 40 ty (bit/chan n # Significant gains th RC d AC m d e ls 0 5 0 Capaci Significant gains Limitedgainsantennas gains moreantennas 0 5 Number of Antennas g
10 ains with more antennas KhojastepourNECL
ains with more antennas KhojastepourNECLaboratoriesAmerica Outline Outline Background Background f o f ExperimentalEvaluation KhojastepourNECLaboratoriesAmerica MIDU: DUplex DUplex Symmetricantenna 1 R 1 plac
11 ement KhojastepourNECLaboratoriesAmerica
ement KhojastepourNECLaboratoriesAmerica MIDU: DUplex DUplex Symmetricantenna RX Chain placement level antenna 1 level antenna cancellationTxcancellationfollowed cancellation T1 cancellation Provedhaveadditiveg
12 ains gains/phase gains/phase imprecisepl
ains gains/phase gains/phase impreciseplacement Khojastepour TX Chain MIDU: DUplex DUplex Symmetricantenna placement level antenna 2R3 level antenna cancellationTxcancellationfollowed cancellation R1 cancellati
13 on Provedhaveadditivegains gains/phase T
on Provedhaveadditivegains gains/phase T1 T2T3 gains/phase impreciseplacement lbl Easysca l a b i l KhojastepourNECLaboratoriesAmerica Implementation Implementation WarpLabimplementation Narrowenvironment +MU M
14 IDU + MU VirtexPro NECLaboratoriesAmeric
IDU + MU VirtexPro NECLaboratoriesAmericaKhojastepour Implementation Implementation WarpLabimplementation Narrowenvironment +MU MIDU + MU Performance correspon capac VirtexPro NECLaboratoriesAmericaKhojastepour
15 Implementation Implementation WarpLabim
Implementation Implementation WarpLabimplementation Narrowenvironment +MU MIDU + MU Performance correspon capac analyzer VirtexPro analyzer measurementreportedWARP NECLaboratoriesAmericaKhojastepour Experiment
16 alEvaluation Experimental Evaluation Fea
alEvaluation Experimental Evaluation Feasibility ChanneldistanceStability far users R2R3 far users Cancellation 1 levellevel 1 T2T3 cell cell KhojastepourNECLaboratoriesAmerica Impact Far Users y y anten
17 naplacementfarusers? Khojastepour Impact
naplacementfarusers? Khojastepour Impact Far Users y 13 antennaplacementfarusers? 8 1918 Khojastepour Impact Far Users y y antennaplacementfarusers? Achievedcanhigher/lower Khojastepour Circle OuterCircle Impac
18 t Far Users y y antennaplacementfarusers
t Far Users y y antennaplacementfarusers? Achievedcanhigher/lower fild I n fi e cancellationverylimitedeffectscatterin fadin ( resultsforcancellation Khojastepour Circle OuterCircle ExperimentalEvaluation Exper
19 imental Evaluation Feasibility Channeld
imental Evaluation Feasibility ChanneldistanceStability far users R2R3 far users Cancellation 1 levellevel 1 T2T3 cell cell KhojastepourNECLaboratoriesAmerica Cancellation Cancellation levelcancellation
20 1 R 1 additivescalable? receiver receive
1 R 1 additivescalable? receiver receiver a analyzer KhojastepourNECLaboratoriesAmerica Cancellation Cancellation levelcancellation additivescalable? cancellation 30 cancellation levelseparately Cancellationr
21 emainsrelativelyunchangedpower Khojastep
emainsrelativelyunchangedpower KhojastepourNECLaboratoriesAmerica Cancellation Cancellation levelcancellation RX Chain additivescalable? shifterpath 1 shifter path delay 1 + TX Chain + KhojastepourNECLaboratori
22 esAmerica Cancellation Cancellation leve
esAmerica Cancellation Cancellation levelcancellation additivescalable? shifterpath shifter path delay cancellationtopcancellationadditive KhojastepourNECLaboratoriesAmerica Cancellation Cancellation levelcance
23 llation additivescalable? shifterpath sh
llation additivescalable? shifterpath shifter path delay cancellationtopcancellationadditive decreasecancellationforfirst totalpairs 3 total pairs KhojastepourNECLaboratoriesAmerica ExperimentalEvaluation Exper
24 imental Evaluation Feasibility Channeld
imental Evaluation Feasibility ChanneldistanceStability far users R2R3 far users Cancellation 1 levellevel 1 T2T3 cell cell KhojastepourNECLaboratoriesAmerica Comparison Comparison Compare conservedbeamf
25 oming/filteringfordirection interference
oming/filteringfordirection interference R2 interference Metric:capacity measured R5R6 measured SNR 3 R4 KhojastepourNECLaboratoriesAmerica Comparison Comparison Compare M: #UL Streams N: #DL Stream s conse
26 rvedbeamfoming/filteringfordirection int
rvedbeamfoming/filteringfordirection interference interference duplexgains streamsscaled streams scaled KhojastepourNECLaboratoriesAmerica Comparison Comparison Compare 3 DL Streams Va UL Stream s conse
27 rvedbeamfoming/filteringfordirection int
rvedbeamfoming/filteringfordirection interference interference duplexgains streamsscaled streams scaled Formaximumduplexgains, streams streams betweenproportionate KhojastepourNECLaboratoriesAmerica Comparison
28 Comparison Compare 3 DL Streams Va
Comparison Compare 3 DL Streams Va UL Stream s conservedbeamfoming/filteringfordirection interference interference duplexgains streamsscaled Full duplex has great potential in practical s i ng le ell M
29 O sch e m e i n wh i ch th e streams s
O sch e m e i n wh i ch th e streams scaled Formaximumduplexgains, streams sng c M MMO schms n whch th number of streams is small the streams betweenproportionate KhojastepourNECLaboratoriesAmerica RelatedWo
30 rk Related Work antennaduplex antenna du
rk Related Work antennaduplex antenna duplex Knox,forduplex Signal Enhanced Circulator design for full duplex wireless Enhanced Circulator design for full duplex wireless Tx Signal Tx Output Rx Inpt Interferen
31 ce Cancellation Circuit Interference C
ce Cancellation Circuit Interference Cancellation Circuit Rx Inp t + KhojastepourNECLaboratoriesAmerica Cancellation Circuit Cancellation Circuit Rx Signal RelatedWork Related Work antennaduplex antenna duple
32 x Knox,forduplex AsymmetricAntennacance
x Knox,forduplex AsymmetricAntennacancellation Asymmetric Antenna cancellation et.Achievingduplex KhojastepourNECLaboratoriesAmerica RelatedWork Related Work antennaduplex antenna duplex Knox,forduplex Asym
33 metricAntennacancellation Asymmetric Ant
metricAntennacancellation Asymmetric Antenna cancellation et.Achievingduplex cancellation cancellation et.Practicalduplex Durate duplexoff radios " M . Durate , . duplex off radios KhojastepourNECLaborato
34 riesAmerica RelatedWork Related Work ant
riesAmerica RelatedWork Related Work antennaduplex antenna duplex Knox,forduplex AsymmetricAntennacancellation Asymmetric Antenna cancellation et.Achievingduplex cancellation cancellation et.Practicalduplex
35 Durate duplexoff radios " M . Durate
Durate duplexoff radios " M . Durate , . duplex off radios Our work presents the design and implementation f th fit MIMO fll dl t KhojastepourNECLaboratoriesAmerica f th e fi t MIMO f ll d up l m Summary
36 In Summary implementedMIDU,firstduplex w
In Summary implementedMIDU,firstduplex w i sys twostagesantennacancellationadditivegainsthat provided interferencecancellation provided 45 interference cancellation prototypejointoperation Duplexpractice Duplex
37 practice ProvidedforefficientMACfor emp
practice ProvidedforefficientMACfor employing employing NECLabs:http://www.neclabs.com/ Princeton EdgeLab http:// scenic.princeton.edu Princeton EdgeLab : http:// scenic.princeton.edu KhojastepourNECLaboratori