Two-Way Traffic Ahead: RF\/Analog Self-Interference Cancellation Techniques and the Challenges for Future Integrated Full-Duplex Transceivers

Katanbaf, Mohamad; Chu, Kun-Da; Zhang, Tong; Su, Chenxin; Rudell, Jacques C.

doi:10.1109/mmm.2018.2880489

Cited by 20 publications

(5 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wi-Fi systems work as two-way traffic, using radio waves to transmit information across a network, as shown in Figure 1. 13 A Wi-Fi router's antenna converts the electrical signal form of data to electromagnetic (EM) waves and emits to the atmosphere, and vice versa. 14,15 Three major types of Wi-Fi antenna exist: omni-directional, semi-directional, and directional.…”

Section: General Backgroundmentioning

confidence: 99%

Impact of Wi-Fi Energy on EZ Water

Lee

Pollack

2021

Preprint

View full text Add to dashboard Cite

It is well known that there are three phases of water: gas, liquid and solid. Yet, recently, a fourth phase, known as Exclusion Zone (EZ) water, has been identified. The fourth phase is the major constituent in cells, which cannot function without an ample supply. Here, we report on how Wi-Fi, as an external source of disturbance, impacts EZ water. Thus, the size of EZ was measured under Wi-Fi exposure. It was tracked for 20 minute periods, and at various displacements of the Wi-Fi source. We found a diminution of EZ size by 15 - 20 %, and a negative impact of Wi-Fi on EZ size with shorter displacements. Thus, Wi-Fi exposure may impact cell functionality.

show abstract

Section: General Backgroundmentioning

confidence: 99%

Impact of Wi-Fi Energy on EZ Water

Lee

Pollack

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Recent STAR realizations [6], [12]- [15], [15]- [22] have successfully demonstrated 80 -110 dB interference suppression. However, this was achieved over a narrow bandwidth (< 80 MHz) using not more than three cancellation stages.…”

Section: Introductionmentioning

confidence: 99%

Techniques for Achieving High Isolation in RF Domain for Simultaneous Transmit and Receive

Venkatakrishnan

Hovsepian

Johnson

et al. 2020

IEEE Open J. Antennas Propag.

View full text Add to dashboard Cite

With the growth of wireless data traffic, additional spectrum is required to meet consumer demands. Consequently, innovative approaches are needed for efficient management of the available limited spectrum. To double the achievable spectral efficiency, a transceiver can be designed to receive and transmit signals simultaneously (STAR) across the same frequency band. However, due to the coupling of the high power transmitted signal into the collocated receiver, the receiver's performance is degraded. For successful STAR realization, the coupled highpower transmit (Tx) signal should be suppressed by 100-120 dB over the entire operational bandwidth. So far, most STAR implementations are narrowband, and not useful for ultra wideband (UWB) communications. In this paper, we present review of novel approaches employed to achieve improved cancellation across wide bandwidths in RF and propagation domains.Both single and multi-antenna systems are considered. Measurements show an average cancellation of 50 dB using two stages of RF signal cancellation.

show abstract

“…Tunable phase-shifting components are typically deployed for this application, to reflect the practical variation in the TX channel -as it changes over time and environment conditions. Because of the flexibility required, advanced components based on N-path circuits, or Digital-to-Analog (DAC) TX signal replicas have been proposed [106,107]. In [107] a systematic overview of the available technologies for wide BW SIC are reported.…”

Section: Mem-based Ltv Cancelers For Full-duplex Radiosmentioning

confidence: 99%

“…Because of the flexibility required, advanced components based on N-path circuits, or Digital-to-Analog (DAC) TX signal replicas have been proposed [106,107]. In [107] a systematic overview of the available technologies for wide BW SIC are reported.…”

Section: Mem-based Ltv Cancelers For Full-duplex Radiosmentioning

confidence: 99%

“…Among the challenges faced when implementing SIC, a wide range tunability of group delay (GD) in a large BW prevents the use of lumped or distributed passive solutions (either for tunability or footprint requirements) so that mixed signal solutions such as N-path is potentially a candidate for this application. However, as switching frequency f m for N-path circuits are typically comparable to f RF [108], wide BW operation and tunability comes at low linearity (whereas an IIP 3 above 40 dBm is required in practical systems [107]) and increased power consumption (easily in the 100 mW range [109]).…”

Section: Mem-based Ltv Cancelers For Full-duplex Radiosmentioning

confidence: 99%

See 1 more Smart Citation

RF front-end components based on linear-time-variant modulation of piezoelectric MEMS resonators

Michetti¹

View full text Add to dashboard Cite

Two-Way Traffic Ahead: RF\/Analog Self-Interference Cancellation Techniques and the Challenges for Future Integrated Full-Duplex Transceivers

Cited by 20 publications

References 50 publications

Impact of Wi-Fi Energy on EZ Water

Impact of Wi-Fi Energy on EZ Water

Techniques for Achieving High Isolation in RF Domain for Simultaneous Transmit and Receive

RF front-end components based on linear-time-variant modulation of piezoelectric MEMS resonators

Contact Info

Product

Resources

About