Self-Interference Cancellation: A Comprehensive Review from Circuits and Fields Perspectives

Increased demand for higher spectrum efficiency, especially in the space-limited chip, base station, and vehicle environments, has spawned the development of full-duplex communications, which enable the transmitting and receiving to occur simultaneously at the same frequency. The key challenge in th...

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Main Authors: Jiahao Zhang, Fangmin He, Wei Li, Yi Li, Qing Wang, Songhu Ge, Jinling Xing, Hongbo Liu, Yaxing Li, Jin Meng
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/11/2/172
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author Jiahao Zhang
Fangmin He
Wei Li
Yi Li
Qing Wang
Songhu Ge
Jinling Xing
Hongbo Liu
Yaxing Li
Jin Meng
author_facet Jiahao Zhang
Fangmin He
Wei Li
Yi Li
Qing Wang
Songhu Ge
Jinling Xing
Hongbo Liu
Yaxing Li
Jin Meng
author_sort Jiahao Zhang
collection DOAJ
description Increased demand for higher spectrum efficiency, especially in the space-limited chip, base station, and vehicle environments, has spawned the development of full-duplex communications, which enable the transmitting and receiving to occur simultaneously at the same frequency. The key challenge in this full-duplex communication paradigm is to reduce the self-interference as much as possible, ideally, down to the noise floor. This paper provides a comprehensive review of the self-interference cancellation (SIC) techniques for co-located communication systems from a circuits and fields perspective. The self-interference occurs when the transmitting antenna and the receiving antenna are co-located, which significantly degrade the system performance of the receiver, in terms of the receiver desensitization, signal masking, or even damage of hardwares. By introducing the SIC techniques, the self-interference can be suppressed and the weak desired signal from the remote transmitter can be recovered. This, therefore, enables the full-duplex communications to come into the picture. The SIC techniques are classified into two main categories: the traditional circuit-domain SICs and the novel field-domain SICs, according to the method of how to rebuild and subtract the self-interference signal. In this review paper, the field-domain SIC method is systematically summarized for the first time, including the theoretical analysis and the application remarks. Some typical SIC approaches are presented and the future works are outlooked.
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spelling doaj.art-0daa7dd8728f4c638e047bf144f928942023-11-23T13:33:25ZengMDPI AGElectronics2079-92922022-01-0111217210.3390/electronics11020172Self-Interference Cancellation: A Comprehensive Review from Circuits and Fields PerspectivesJiahao Zhang0Fangmin He1Wei Li2Yi Li3Qing Wang4Songhu Ge5Jinling Xing6Hongbo Liu7Yaxing Li8Jin Meng9National Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaNational Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaNational Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaNational Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaNational Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaNational Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaNational Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaNational Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaNational Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaNational Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaIncreased demand for higher spectrum efficiency, especially in the space-limited chip, base station, and vehicle environments, has spawned the development of full-duplex communications, which enable the transmitting and receiving to occur simultaneously at the same frequency. The key challenge in this full-duplex communication paradigm is to reduce the self-interference as much as possible, ideally, down to the noise floor. This paper provides a comprehensive review of the self-interference cancellation (SIC) techniques for co-located communication systems from a circuits and fields perspective. The self-interference occurs when the transmitting antenna and the receiving antenna are co-located, which significantly degrade the system performance of the receiver, in terms of the receiver desensitization, signal masking, or even damage of hardwares. By introducing the SIC techniques, the self-interference can be suppressed and the weak desired signal from the remote transmitter can be recovered. This, therefore, enables the full-duplex communications to come into the picture. The SIC techniques are classified into two main categories: the traditional circuit-domain SICs and the novel field-domain SICs, according to the method of how to rebuild and subtract the self-interference signal. In this review paper, the field-domain SIC method is systematically summarized for the first time, including the theoretical analysis and the application remarks. Some typical SIC approaches are presented and the future works are outlooked.https://www.mdpi.com/2079-9292/11/2/172interference cancellationself-interferencefull-duplex communications
spellingShingle Jiahao Zhang
Fangmin He
Wei Li
Yi Li
Qing Wang
Songhu Ge
Jinling Xing
Hongbo Liu
Yaxing Li
Jin Meng
Self-Interference Cancellation: A Comprehensive Review from Circuits and Fields Perspectives
Electronics
interference cancellation
self-interference
full-duplex communications
title Self-Interference Cancellation: A Comprehensive Review from Circuits and Fields Perspectives
title_full Self-Interference Cancellation: A Comprehensive Review from Circuits and Fields Perspectives
title_fullStr Self-Interference Cancellation: A Comprehensive Review from Circuits and Fields Perspectives
title_full_unstemmed Self-Interference Cancellation: A Comprehensive Review from Circuits and Fields Perspectives
title_short Self-Interference Cancellation: A Comprehensive Review from Circuits and Fields Perspectives
title_sort self interference cancellation a comprehensive review from circuits and fields perspectives
topic interference cancellation
self-interference
full-duplex communications
url https://www.mdpi.com/2079-9292/11/2/172
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