Effect of timing misalignment on in-band full-duplex communications

Jaeyoung Choi, Haesoon Lee, Daesik Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Synchronization problems are inevitable in in-band full-duplex (IBFD) systems due to arrival time misalignment between self-interference (SI) and the desired signal. We begin by showing that the timing misalignment significantly affects the performance of digital SI cancellation (SIC) or signal detection when conventional synchronization is used. The conventional synchronization method introduces inter-symbol interference between SI signals, thus reducing the performance of the digital SIC. In order to guarantee the performance of digital SIC and signal detection against the timing misalignment, we propose a two-step synchronization method. Lastly, using numerical results, we compare the performance of digital SIC and signal detection according to the addressed synchronization methods and show that the superiority of the proposed methods under asynchronous environments.

Original languageEnglish
Title of host publication2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509027439
DOIs
Publication statusPublished - 2017 Jan 3
Event2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016 - Seoul, Korea, Republic of
Duration: 2016 Oct 262016 Oct 28

Publication series

Name2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016

Other

Other2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016
CountryKorea, Republic of
CitySeoul
Period16/10/2616/10/28

Fingerprint

misalignment
synchronism
Synchronization
cancellation
communication
time measurement
signal detection
International System of Units
Signal detection
Communication
interference
Signal interference
arrivals

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Instrumentation

Cite this

Choi, J., Lee, H., & Hong, D. (2017). Effect of timing misalignment on in-band full-duplex communications. In 2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016 [7804746] (2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCE-Asia.2016.7804746
Choi, Jaeyoung ; Lee, Haesoon ; Hong, Daesik. / Effect of timing misalignment on in-band full-duplex communications. 2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016. Institute of Electrical and Electronics Engineers Inc., 2017. (2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016).
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Choi, J, Lee, H & Hong, D 2017, Effect of timing misalignment on in-band full-duplex communications. in 2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016., 7804746, 2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016, Institute of Electrical and Electronics Engineers Inc., 2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016, Seoul, Korea, Republic of, 16/10/26. https://doi.org/10.1109/ICCE-Asia.2016.7804746

Effect of timing misalignment on in-band full-duplex communications. / Choi, Jaeyoung; Lee, Haesoon; Hong, Daesik.

2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016. Institute of Electrical and Electronics Engineers Inc., 2017. 7804746 (2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - Synchronization problems are inevitable in in-band full-duplex (IBFD) systems due to arrival time misalignment between self-interference (SI) and the desired signal. We begin by showing that the timing misalignment significantly affects the performance of digital SI cancellation (SIC) or signal detection when conventional synchronization is used. The conventional synchronization method introduces inter-symbol interference between SI signals, thus reducing the performance of the digital SIC. In order to guarantee the performance of digital SIC and signal detection against the timing misalignment, we propose a two-step synchronization method. Lastly, using numerical results, we compare the performance of digital SIC and signal detection according to the addressed synchronization methods and show that the superiority of the proposed methods under asynchronous environments.

AB - Synchronization problems are inevitable in in-band full-duplex (IBFD) systems due to arrival time misalignment between self-interference (SI) and the desired signal. We begin by showing that the timing misalignment significantly affects the performance of digital SI cancellation (SIC) or signal detection when conventional synchronization is used. The conventional synchronization method introduces inter-symbol interference between SI signals, thus reducing the performance of the digital SIC. In order to guarantee the performance of digital SIC and signal detection against the timing misalignment, we propose a two-step synchronization method. Lastly, using numerical results, we compare the performance of digital SIC and signal detection according to the addressed synchronization methods and show that the superiority of the proposed methods under asynchronous environments.

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Choi J, Lee H, Hong D. Effect of timing misalignment on in-band full-duplex communications. In 2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016. Institute of Electrical and Electronics Engineers Inc. 2017. 7804746. (2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016). https://doi.org/10.1109/ICCE-Asia.2016.7804746