Results 131 to 140 of about 232,730 (164)

Self-interference noise limitations of RFID readers

2015 IEEE International Conference on RFID (RFID), 2015
In this contribution we compute the read range limits of RFID readers also modelling the often ignored self-interference and leakage cancellation effects. The forward link limit is defined by the sensitivity of the tag, while the reverse link limit depends on the ability of the reader to decode the tag message.
Gregor Lasser, Christoph F. Mecklenbrauker   +1 more
openaire   +1 more source

Antennas and Radio Frequency Self-Interference Cancellation

2020
This chapter presents and reviews radio frequency (RF) transceiver architectures for in-band full-duplex, spanning both antenna techniques and RF cancellation loops. In the antenna domain, isolation can be achieved using separate transmit and receive antennas, exploiting propagation loss for transmit-to-receive isolation, or through more complicated ...
Laughlin, Leo, Beach, Mark
openaire   +1 more source

End-to-End Learned Self-Interference Cancellation

2022 56th Asilomar Conference on Signals, Systems, and Computers, 2022
Full-duplex communications systems can transmit and received information at the same time and on the same frequency band. However, they require strong self-interference (SI) cancellation. While a part of this SI cancellation is carried out in the analog domain, in most cases digital SI cancelation is required as well.
openaire   +2 more sources

Full-duplex bidirectional communication under self-interference

2015 13th International Conference on Telecommunications (ConTEL), 2015
In this paper, we analyze bidirectional communication between two multiple antenna nodes performing half-duplex and full-duplex transmissions. We compare the performance of half-duplex and full-duplex modes in terms of achievable sum rate under finite Signal to Noise Ratio (SNR), while utilizing a realistic, experimentally characterized residual self ...
Kudret Akcapinar, Ozgur Gurbuz
openaire   +1 more source

Techniques of self-interference incoherent digital holography

2015 IEEE 13th International Conference on Industrial Informatics (INDIN), 2015
We discuss and demonstrate our recent developments using self-interference incoherent digital holography to bridge the gap between indispensable incoherent imaging techniques and the advantages of three-dimensional holographic recording. We demonstrate the ability to record broadband sunlit photographic holograms, apply non-invasive three-dimensional ...
David C. Clark, Myung K. Kim
openaire   +1 more source

Widely-Linear Subspace-Based Self-Interference-Cancellation

2017
This chapter addresses the self-interference (SI) cancellation at baseband for full-duplex MIMO communications systems in consideration of practical transmitter imperfections. In particular, we develop a subspace-based algorithm to jointly estimate the SI and intended channels and the nonlinear distortions.
Tho Le-Ngoc, Ahmed Masmoudi
openaire   +1 more source

Self-Interference Leakage Estimation ‘N’ Cancellation Element: Design of an Active Self-Interference Cancellation Coupler

IEEE Microwave Magazine, 2023
Patrick Fenske, Andre Scheder, Tobias Koegel, Konstantin Root, Martin Vossiek, Christian Carlowitz   +5 more
openaire   +1 more source

Active Signal Injection for Self-Interference-Cancellation

2017
A common problem in full-duplex operation is the existence of a large self-interference (SI) at the receiver input, which prevents the proper detection of the intended signal. This chapter presents a new active signal injection (ASI) approach for full-duplex multiple-input multiple-output (MIMO) OFDM systems to reduce the SI prior to the receiver low ...
Tho Le-Ngoc, Ahmed Masmoudi
openaire   +1 more source

Self-Interference-Cancellation in Full-Duplex Systems

2017
This chapter provides a brief overview of several important concepts related to SI-cancellation techniques to form a solid background for the following chapters. We first discuss the nature of the self-interference (SI) channel which leads to the use of the analog RF cancellation stage and the digital cancellation stage.
Tho Le-Ngoc, Ahmed Masmoudi
openaire   +1 more source

Are Two-Beam Self-Interferences Mass-Independent?

1992
The symmetric two-beam self-interference of single particles, which is one of the most elementary quantum processes and named after Dirac, is usually understood to exhibit the same normalized interference pattern under the same geometric condition for both the wavelength and slit-detector system, no matter how different the properties* of the particles
openaire   +1 more source