Internet of Moving Things using Full Duplex Mesh Networks
SriramVishwanathWirelessNetworkingand
Communica8onsGroup(WNCG)ECE,UTAus8n
Self Interference in Full Duplex
Tx
Rx
ScaBers
Received Signal
Transmit Signal
Reflected Signal DirectPath
x -> received signal z - > transmit signal w-> noise signal
True Full Duplex Radios
• Possiblethroughself-interferenceisola8onandcancella8on– 110+dBofisola8on/cancella8onnecessary
• Enableslisten-while-talking– Muchmoreefficientmobilemeshing
• Cancella8onofselfinterference– Usingdiscretecomponents
– 110dB• Singleantenna• WorkswellwithMIMO
RF Cancellation
Digital Non Linear DF Filter
60-70 dB
50 dB
DSP
Digital Cancell
ation
BB TX
BB RX
DAC
Analog Filters AD
C
RF –Cancellation
Internet of Moving Things (IoMT)
• Fullduplex+mobilemeshing– Marriagemadeinheaven– Lowoverhead,highthroughputmeshing
• Connectpeopleanddevicesastheymove– Astheymove– Discovery,rou8ng,handoffefficient
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