Analysis of Interference Cancellation Ratio Requirement for Co-site Interference Mitigation Between AM and FM Systems

Zhao, Kui; Wang, Qing; He, Fangmin; Cui, Zhongpu; Meng, Jin; Zhang, Lei

doi:10.23919/emctokyo.2019.8893763

Cited by 1 publication

(1 citation statement)

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“…However, this method dramatically increases the complexities in hardware design and requires sophisticated algorithms for attenuation tuning instead of more general gradient descent approaches [8]. Other different aspects of the analog SIC have been studied by many other researchers, in terms of the matching strategy [35], the performance bound [29,36,37], and the SIC performance under complex circumstances, i.e., the Doppler effects, the channel fading effects, and the nonlinear distortion effects [38,39]. All these studies from various perspectives form a relatively mature research framework of the analog SIC compared with the digital and hybrid approaches.…”

Section: Analog Sicmentioning

confidence: 99%

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

Zhang¹,

He²,

Li³

et al. 2022

Electronics

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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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