Active Interference Cancellation for Full-Duplex Multiuser Networks With or Without Existence of Self-Interference

Lee, Yinman; Huang, Bo-Ying

doi:10.1109/access.2019.2895160

Cited by 8 publications

(8 citation statements)

References 66 publications

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“…Structural schematic diagram of the proposed NPLM based CSIC controller with frequency down-conversion section is shown in figure 1. A coupler is used to split and switch the orthogonally polarized input laser signal beam into clockwise (CK) and counter-clockwise (CCK) directions [16]. To empower optical signal processing in W-band, two polarization controlled modulators are reciprocally connected.…”

Section: Proposed Methods Of Csicmentioning

confidence: 99%

Non-linear photonic loop mirror based co-site interference canceller

Chandrasenan¹,

Zacharias²

2022

Laser Phys. Lett.

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Full duplex-in band (FDIB) is a well-established solution for increasing the data rate and spreading the link range for future communication systems. FDIB systems need no additional bandwidth requirement. However, they are confronted with a major interference challenge on the same site, called co-site interference (CSI). Long-established co-site interference cancellation (CSIC) methods achieve a cancellation depth upto 35 dB, conversely it has space containments, manufacturing imperfections, induces noise penalties and limits isolation bandwidth. To overcome these problems, RF photonic CSIC methods have been developed, which have produced 30 dB wide-band interference suppression. They also increase bandwidth, have a flexible structure, minimize losses and prevent periodic power fading. But these systems have a problem of inherent DC drift, low maintenance of coherence, and low isolation at low transmission power. Thus, there is a high need for photonic CSIC designs of FDIB systems that operate over wider bandwidths and at higher transmission powers. Here, a newfangled CSIC system based on a non-linear photonic loop and frequency down-conversion is proposed. It shows excellent CSIC suppression of greater than 61 dB, for a single frequency signal of interest (SOI) with maximum RF power of 13 dBm. Without frequency down-conversion, the system maintains an average cancellation depth of 62.541 dB for single frequency SOI. After frequency down conversion, the system maintains an average cancellation depth of 61.208 dB for narrow band SOI. The system attains 18% error vector magnitude at −20 dB RF output power, which confirms the comprehensive quality of the system.

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Section: Proposed Methods Of Csicmentioning

confidence: 99%

Non-linear photonic loop mirror based co-site interference canceller

Chandrasenan¹,

Zacharias²

2022

Laser Phys. Lett.

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“…The recent SI suppression advancements have laid the foundation for FD radios' use in a C-D2D communications system. A suitable SIC scheme can suppress the SI up to the noise level [13], [14]; however, the FD radios may not always enhance the performance of a C-D2D communication system since it depends on the amount of RSI at the receiver. Performance analysis of C-D2D communications system with HD relay has been widely studied in the literature [15]- [17].…”

Section: A Related Work and Motivationmentioning

confidence: 99%

An Adaptive Full-Duplex/Half-Duplex Multiuser Cooperative D2D Communications System With Best User Selection

Bajpai

Gupta

2021

IEEE Open J. Commun. Soc.

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Full-duplex (FD) transmissions have emerged as a spectrally efficient technology with the evolution of enhanced self-interference (SI) suppression techniques. However, the FD transmission mode (TM) may not consistently outperform the half-duplex (HD) TM due to the residual SI. In contrast, an adaptive FD/HD transmission scheme utilizes the advantages of both FD and HD TM. This paper proposes an adaptive FD/HD transmission scheme for a cooperative device-to-device (C-D2D) communications system wherein cellular uplink data is relayed through a D2D transmitter (DT). Additionally, a joint DT and TM selection algorithm is introduced to identify the best relay and favorable TM for the multiuser C-D2D system. Further, a probabilistic mathematical framework is developed to evaluate the proposed adaptive FD/HD transmission scheme. The analytical expressions of D2D and cellular outage probability for each TM (FD/HD) have been derived. Results show that FD TM performs better than HD TM when a maximum of two D2D users mapped to a cellular user. However, a trade-off between FD and HD TM is observed for a large number of D2D users. Specifically, when the cellular outage constraint is low, HD TM performs better than FD TM, whereas FD TM outperforms HD TM for high cellular outage constraint.

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“…Lee et al [65] considered the similar approach described in [61], but the authors have proposed a comparatively lower signal processing complexity at the AP by incorporating a large number of antennas. This solution is acceptable in infrastructure based wireless networks, but it cannot be applied to ad-hoc networks where power constraints are very important issues.…”

Section: Existing State Of the Art In-band Fd-mac Protocols With Intementioning

confidence: 99%

In-Band Full Duplex Wireless LANs: Medium Access Control Protocols, Design Issues and Their Challenges

2020

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In-band full duplex wireless medium access control (MAC) protocol is essential in order to enable higher layers of the protocol stack to exploit the maximum benefits from physical layer full duplex technology. Unlike half duplex wireless local area network, a full duplex MAC protocol has to deal with several unique issues and challenges that arise because of the dynamic nature of the wireless environment. In this paper, we have discussed several existing full duplex MAC protocols and have shown qualitative comparisons among these full duplex MAC protocols. Full duplex in-band wireless communication has the potential to double the capacity of wireless network. Inter-client Interference (ICI) is a hindrance in achieving double spectral efficiency of the in-band full-duplex wireless medium. In this paper, we have classified existing solutions to the ICI problem and compared the solutions with respect to the proposed approaches, their advantages and disadvantages.We have also identified and discussed several issues and challenges of designing a full duplex MAC protocol. Results of qualitative comparisons of various wireless full duplex MAC protocols may be applied to design new protocols as well as researchers may find the identified issues and challenges helpful to solve various problems of a full duplex MAC protocol.

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Active Interference Cancellation for Full-Duplex Multiuser Networks With or Without Existence of Self-Interference

Cited by 8 publications

References 66 publications

Non-linear photonic loop mirror based co-site interference canceller

Non-linear photonic loop mirror based co-site interference canceller

An Adaptive Full-Duplex/Half-Duplex Multiuser Cooperative D2D Communications System With Best User Selection

In-Band Full Duplex Wireless LANs: Medium Access Control Protocols, Design Issues and Their Challenges

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