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2018 8th International Conference on Electronics Information and Emergency Communication (ICEIEC), 2018
In full-duplex system, the key research of analog self-interference cancellation are self-interference channel and reconstruction circuit for self-interference suppression. In this paper, we measure the self-interference channel using the vector-based channel response measurement method, and analyze the effects of tap delay, tap interval, tap number ...
Long Luo, Shaoqian Li
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In full-duplex system, the key research of analog self-interference cancellation are self-interference channel and reconstruction circuit for self-interference suppression. In this paper, we measure the self-interference channel using the vector-based channel response measurement method, and analyze the effects of tap delay, tap interval, tap number ...
Long Luo, Shaoqian Li
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Limiting Factors in Self-Interference Cancellation
2017Various experimental results have stated that the self-interference (SI) in full-duplex communication can be mitigated to properly detect the intended signal. However, relatively little is known about the cancellation limits of these systems. A good SI-cancellation strategy passes first by a proper understanding of the nature of this SI. This is highly
Tho Le-Ngoc, Ahmed Masmoudi
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Wireless packet collision detection using self-interference canceller
2013 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2013The paper considers wireless collision detection at the transmitter for wireless local area network systems. One of the major challenges to achieve such collision detection is the self-interference of very high power, which decrease the effective quantization level for the collision packet to be detected.
Wataru Kawata +4 more
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Widely-Linear Subspace-Based Self-Interference-Cancellation
2017This 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
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Integrated Microwave Photonic Circuit for Self-Interference Cancellation
IEEE Transactions on Microwave Theory and Techniques, 2017We present the first experimental demonstration of an integrated microwave photonic circuit for active, analog self-interference cancellation. The circuit is unique in its ability to operate in any radio frequency (RF) band from 400 MHz up to 6 GHz while not requiring any optical inputs or outputs.
Matthew P. Chang +4 more
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Active Signal Injection for Self-Interference-Cancellation
2017A 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
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Self-Interference Cancellation in SISO Full-Duplex System
2020 IEEE 7th Uttar Pradesh Section International Conference on Electrical, Electronics and Computer Engineering (UPCON), 2020In this paper, we propose a single-input single-output (SISO) full-duplex system model to remove self-interference from the received signal. A pilot symbol-based technique is used for channel estimation. The self-interference signal in the implemented transceiver system interferes with an orthogonal frequency division multiplexing (OFDM) modulated ...
Jatin Khare +2 more
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Self-Interference-Cancellation in Full-Duplex Systems
2017This 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
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Blind self-interference cancellation for full-duplex relays
2014 48th Asilomar Conference on Signals, Systems and Computers, 2014Full-duplex relays increase the spectral efficiency and diversity, especially for the amplify and forward mode. However, transmission and reception in the same frequency band produce coupling between the transmitted and received signals that needs to be reduced. The cyclic prefix introduced in modern modulations produces a periodic autocorrelation that
Gustavo J. Gonzalez +2 more
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Antenna/RF Design and Analog Self-Interference Cancellation
2020The main obstacle to full-duplex radios is self-interference (SI). To overcome SI, researchers have proposed several analog and digital domain self-interference cancellation (SIC) techniques. Digital cancellation has the following limitations: (1) It is only possible if the SI is sufficiently removed in the analog domain to fall within the dynamic ...
Jong Woo Kwak +4 more
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