Understanding the impact of phase noise on active cancellation in wireless full-duplex

Achaleshwar Sahai; Gaurav Patel; Chris Dick; Ashutosh Sabharwal

doi:10.1109/ACSSC.2012.6488952

Understanding the impact of phase noise on active cancellation in wireless full-duplex

Achaleshwar Sahai, Gaurav Patel, Chris Dick, Ashutosh Sabharwal

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

63 Scopus citations

Abstract

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.

Original language	English (US)
Title of host publication	Conference Record of the 46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012
Pages	29-33
Number of pages	5
DOIs	https://doi.org/10.1109/ACSSC.2012.6488952
State	Published - 2012
Event	46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012 - Pacific Grove, CA, United States Duration: Nov 4 2012 → Nov 7 2012

Publication series

Name	Conference Record - Asilomar Conference on Signals, Systems and Computers
ISSN (Print)	1058-6393

Conference

Conference	46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012
Country/Territory	United States
City	Pacific Grove, CA
Period	11/4/12 → 11/7/12

ASJC Scopus subject areas

Signal Processing
Computer Networks and Communications

Access to Document

10.1109/ACSSC.2012.6488952

Cite this

Sahai, A., Patel, G., Dick, C., & Sabharwal, A. (2012). Understanding the impact of phase noise on active cancellation in wireless full-duplex. In Conference Record of the 46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012 (pp. 29-33). [6488952] (Conference Record - Asilomar Conference on Signals, Systems and Computers). https://doi.org/10.1109/ACSSC.2012.6488952

Understanding the impact of phase noise on active cancellation in wireless full-duplex. / Sahai, Achaleshwar; Patel, Gaurav; Dick, Chris et al.

Conference Record of the 46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012. 2012. p. 29-33 6488952 (Conference Record - Asilomar Conference on Signals, Systems and Computers).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Sahai, A, Patel, G, Dick, C & Sabharwal, A 2012, Understanding the impact of phase noise on active cancellation in wireless full-duplex. in Conference Record of the 46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012., 6488952, Conference Record - Asilomar Conference on Signals, Systems and Computers, pp. 29-33, 46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012, Pacific Grove, CA, United States, 11/4/12. https://doi.org/10.1109/ACSSC.2012.6488952

Sahai A, Patel G, Dick C, Sabharwal A. Understanding the impact of phase noise on active cancellation in wireless full-duplex. In Conference Record of the 46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012. 2012. p. 29-33. 6488952. (Conference Record - Asilomar Conference on Signals, Systems and Computers). https://doi.org/10.1109/ACSSC.2012.6488952

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Understanding the impact of phase noise on active cancellation in wireless full-duplex

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