CMOS Full-Duplex Mixer-First Receiver With Adaptive Self-Interference Cancellation

Ayati, Seyyed-Amir; Alizadeh, Amirreza; Kiaei, S.

doi:10.1109/tcsi.2020.3034905

Cited by 13 publications

(7 citation statements)

References 31 publications

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“…In this section, the combined AP1 and AP2 is expressed as 'AP-N'. NO 88 (A+D) Special circuit [5] NO 55(A), 40(D) Special circuit [6] NO 75 (A+D) Special circuit [7] partially YES Up to 50 (A+D) Up to 2×2 MIMO [10] YES 46(A), 55(D) Dual polarized antenna [13]+Prop. YES * + 20 "* +" means our approach can combine with other cancellation methods/approaches.…”

Section: Implementation and Experimentsmentioning

confidence: 99%

“…Due to the rapid spread of wireless communication systems in recent years and the increase in communication volume due to the increase in content data volume, there is an increasing demand for higher speed and lower delay in wireless communication. Especially, Full-Duplex (FD) wireless communication technology, which can realize high-speed and low-delay communication while reducing frequency resources, is attracting attention [1][2][3][4][5][6][7]. The full duplex communication system can be achieved more than double throughput comparison to time or frequency division duplex system.…”

Section: Introductionmentioning

confidence: 99%

“…In other words, as the number of antennas increases, analog circuits and the complexity required increases explosively. Thus, extending this method to MIMO is very complex, and even in [3][4][5][6]. It is only implemented by SISO.…”

Section: Introductionmentioning

confidence: 99%

“…It is only implemented by SISO. Even though the papers [5,6] show the SI cancelling system with CMOS circuit, these approach are difficult to apply to the MIMO system. And then, in the case of SISO (Single Input Single Output) communication, antenna cancellation can be performed by using a circulator, but it is difficult to do it for mutual antennas in MIMO communication system.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Joint Transmission Null Beamforming for MIMO Full-Duplex Wireless Communication System

Nagano

Kawano

Nagao

et al. 2023

IEICE Trans. Fundamentals

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Cancellation of self interference (SI) is an important technology in order for wireless communication system devices to perform full-duplex communication. In this paper, we propose a novel self-interference cancellation using null beamforming to be applied entire IEEE 802.11 frame including the legacy part for full-duplex wireless communication on Cooperative MIMO (Multiple Input Multiple Output). We evaluate the SI cancellation amount by the proposed method using a field programmable gate array (FPGA) and software defined radio (SDR), and show the experimental results. In the experiment, it is confirmed that the amount of SI cancellation by the proposed method was at least 18 dB. The SI cancellation amount can be further potentiated with more accurate CSI(channel state information) by increasing the transmission power. It is shown that SI can be suppressed whole frame which includes legacy preamble part. The proposed method can be applied to next generation wireless communication standards as well.

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Section: Implementation and Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Joint Transmission Null Beamforming for MIMO Full-Duplex Wireless Communication System

Nagano

Kawano

Nagao

et al. 2023

IEICE Trans. Fundamentals

View full text Add to dashboard Cite

show abstract

“…To address these issues, we propose a novel RF cancellation scheme, which explores optical components to break the bandwidth limitation due to hardware imperfections and takes advantages of the RF beamforming to reduce the number of required cancellers. Compared with previous studies, this design avoids using auxiliary transmitters and complex digital signal pre-processing as in [27], and can enlarge the operational bandwidth which is difficult in RF domain [28].…”

Section: B Rf Cancellationmentioning

confidence: 99%

Design and Analysis of In-Band Full-Duplex Private 5G Networks Using FR2 Band

2021

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This paper studies a solution for efficient industrial Internet of things (IIoT) communications through a in-band full-duplex (IBFD) enabled private 5G network in frequency range 2 (FR2) band (≥ 24.250 GHz), where ultra-reliable low-latency communications (URLLC) and enhanced mobile broadband (eMBB) devices can be simultaneously served. Large-scale antenna array and RF beamforming are applied, and a self-interference cancellation (SIC) scheme is proposed under such architecture. Particularly, the proposed RF cancellation scheme addressed two key issues of extending current technologies to wideband operations in FR2 band: limited operational bandwidth and the requirement for a large number of cancellers. Then, a frequency domain-based digital canceller is proposed to process with the residual self-interference (RSI) with short processing latency. A game theoretic user allocation algorithm is proposed to minimise cochannel interference (CCI) in a heterogeneous environment. Given a typical IIoT scenario, the performance of such IBFD private 5G network is evaluated in terms of bit-error rate (BER) and spectral efficiency (SE) through simulations and analysed based on numerical results and theoretical calculations. It is demonstrated that the latency of uplink eMBB devices can be reduced by 54% through IBFD radios, and the latency of downlink URLLC devices can be reduced to 0.5 ms with the help of flexible numerology, mini-slot, and self-contained sub-frames introduced in 5G NR. IBFD radios can enhance the SE by 92% compared to HD radios with our SIC and user allocation policy. The high SE in conjunction with abundant resources in FR2 band provide multi-Gbps peak data rates, high reliability, and massive connectivity.

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Developing an asynchronous NoAck-based full-duplex MAC for IEEE 802.11 networks in a systems approach

Park

2021

Computer Communications

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CMOS Full-Duplex Mixer-First Receiver With Adaptive Self-Interference Cancellation

Cited by 13 publications

References 31 publications

Joint Transmission Null Beamforming for MIMO Full-Duplex Wireless Communication System

Joint Transmission Null Beamforming for MIMO Full-Duplex Wireless Communication System

Design and Analysis of In-Band Full-Duplex Private 5G Networks Using FR2 Band

Developing an asynchronous NoAck-based full-duplex MAC for IEEE 802.11 networks in a systems approach

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