In-Band Full-Duplex Technology: Techniques and Systems Survey

By Kenneth E. Kolodziej, Bradley T. Perry, Jeffrey S. Herd. IEEE transactions on microwave theory and techniques, 2019

568 citations recorded by the source corpus.

In-band full-duplex (IBFD) technology can enable unique system capabilities and network architectures by allowing devices to transmit and receive on the same frequency at the same time. While previously considered impossible, this ability can now be used to optimize resource sharing within the crowded frequency spectrum for various communication systems, including 5G new radio. The potential of these IBFD systems can only be realized if each device incorporates a sufficient number of self-interference cancellation techniques to ensure that its receivers do not saturate. This tutorial survey offers the most comprehensive collection to date of these techniques and discusses how all of them can be implemented within the different domains of a typical transceiver. In addition, the results of a novel IBFD system study are presented for more than 50 demonstrated communication systems with more than 80 different measurement scenarios. The various system parameters are then combined into a new figure of merit, which can be used to propel future research and accelerate the inclusion of IBFD technology within an upcoming wireless standard.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/dd8581c361980b27053327fe9b29afec32a42c05

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Citations in the corpus

Full-Duplex Communication for ISAC: Joint Beamforming and Power Optimization (2022, methodology): “In particular, self-interference (SI), which is a critical issue in FD operation, is considered to be suppressed by employing advanced SI cancellation (SIC) techniques [22], [23], e.g., natural isolation, analog cancellation, and digital cancellation.”
The Integrated Sensing and Communication Revolution for 6G: Vision, Techniques, and Applications (2024, unknown): “This, in turn, means that such a sensor is essentially operating as an inband full-duplex (IBFD) transceiver, commonly also referred to as an STAR system [195], [196], [197].”
Full-Duplex OFDM Radar With LTE and 5G NR Waveforms: Challenges, Solutions, and Measurements (2019, background): “The fact that the receiver must be operating simultaneously while transmitting, and at the same carrier frequency, leads to large implementation challenges, particularly in facilitating sufficient transmitter–receiver isolation [12], [19], [23], [28], [37]–[40].”
White Paper on Broadband Connectivity in 6G (2020, methodology): “Its feasibility has been experimentally demonstrated in small-scale wireless communications environments, and it was also considered as an enabling technique for 5G but not yet adopted by 3GPP [107].”
5G-Advanced Toward 6G: Past, Present, and Future (2023, background): “Reference [205] compares more than 50 demonstrated IBFD communication systems with more than 80 different measurement scenarios, in terms of the corresponding isolation performance with respect to the center frequency, instantaneous bandwidth, and transmit power.”