TY - GEN
T1 - Understanding the impact of phase noise on active cancellation in wireless full-duplex
AU - Sahai, Achaleshwar
AU - Patel, Gaurav
AU - Dick, Chris
AU - Sabharwal, Ashutosh
PY - 2012
Y1 - 2012
N2 - Practical designs of wireless full-duplex are made feasible by reducing self-interference via active and passive methods. However, extending the range to long-range communication remains a challenge, primarily due to residual self-interference even after a combination of active cancellation and passive suppression methods is employed. In this paper, we study the factor that limits the amount of active cancellation in current designs of full-duplex. Through an experiment, we show that phase noise in the local oscillator limits the amount of active cancellation of the self-interference signal. Analysing the design proposed by [1, 2] in detail, we show that modifying the quality of the local oscillator can significantly increase the amount of active cancellation in full-duplex systems.
AB - Practical designs of wireless full-duplex are made feasible by reducing self-interference via active and passive methods. However, extending the range to long-range communication remains a challenge, primarily due to residual self-interference even after a combination of active cancellation and passive suppression methods is employed. In this paper, we study the factor that limits the amount of active cancellation in current designs of full-duplex. Through an experiment, we show that phase noise in the local oscillator limits the amount of active cancellation of the self-interference signal. Analysing the design proposed by [1, 2] in detail, we show that modifying the quality of the local oscillator can significantly increase the amount of active cancellation in full-duplex systems.
UR - http://www.scopus.com/inward/record.url?scp=84876207205&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84876207205&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2012.6488952
DO - 10.1109/ACSSC.2012.6488952
M3 - Conference contribution
AN - SCOPUS:84876207205
SN - 9781467350518
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 29
EP - 33
BT - Conference Record of the 46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012
T2 - 46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012
Y2 - 4 November 2012 through 7 November 2012
ER -