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

Jaeyoung Choi; Haesoon Lee; Daesik Hong

doi:10.1109/ICCE-Asia.2016.7804746

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

Jaeyoung Choi, Haesoon Lee, Daesik Hong

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781509027439
DOIs	https://doi.org/10.1109/ICCE-Asia.2016.7804746
Publication status	Published - 2017 Jan 3
Event	2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016 - Seoul, Korea, Republic of Duration: 2016 Oct 26 → 2016 Oct 28

Publication series

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

Other

Other	2016 IEEE International Conference on Consumer Electronics-Asia, ICCE-Asia 2016
Country/Territory	Korea, Republic of
City	Seoul
Period	16/10/26 → 16/10/28

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering
Instrumentation

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10.1109/ICCE-Asia.2016.7804746

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

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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.",

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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 proceeding › Conference 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

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

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