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The evolution of wireless systems has led to a continuous increase in the demand for radio frequency spectrum. To address this issue, a technology that has received a lot of attention is In-Band Full-Duplex (IBFD). The interest in IBFD…

Signal Processing · Electrical Eng. & Systems 2022-02-03 Hossein Mohammadi , Maryam Sabbaghian , Vuk Marojevic

Full-duplex communication systems have the potential to achieve significantly higher data rates and lower latency compared to their half-duplex counterparts. This advantage stems from their ability to transmit and receive data…

Signal Processing · Electrical Eng. & Systems 2023-08-14 Jungyeon Kim , Hyowon Lee , Heedong Do , Jinseok Choi , Jeonghun Park , Wonjae Shin , Yonina C. Eldar , Namyoon Lee

We present an optimized secure multi-antenna transmission approach based on artificial-noise-aided beamforming, with limited feedback from a desired single-antenna receiver. To deal with beamformer quantization errors as well as unknown…

Information Theory · Computer Science 2015-01-22 Xi Zhang , Matthew R. McKay , Xiangyun Zhou , Robert W. Heath

In this paper multi-antenna half-duplex and full-duplex relaying are compared from the perspective of achievable rates. Full-duplexing operation requires additional resources at the relay such as antennas and RF chains for self-interference…

Information Theory · Computer Science 2013-03-13 Nirmal Shende , Ozgur Gurbuz , Elza Erkip

Full-duplex communication has the potential to substantially increase the throughput in wireless networks. However, the benefits of full-duplex are still not well understood. In this paper, we characterize the full-duplex rate gains in both…

Information Theory · Computer Science 2016-06-10 Jelena Marašević , Jin Zhou , Harish Krishnaswamy , Yuan Zhong , Gil Zussman

In-band full-duplex systems allow for more efficient use of temporal and spectral resources by transmitting and receiving information at the same time and on the same frequency. However, this creates a strong self-interference signal at the…

Signal Processing · Electrical Eng. & Systems 2019-12-17 Andreas Toftegaard Kristensen , Andreas Burg , Alexios Balatsoukas-Stimming

Full-duplex systems are expected to achieve 100% rate improvement over half-duplex systems if the self-interference signal can be significantly mitigated. In this paper, we propose the first full-duplex system utilizing Multi-Reconfigurable…

Information Theory · Computer Science 2014-06-02 Elsayed Ahmed , Ahmed M. Eltawil , Zhouyuan Li , Bedri A. Cetiner

In this paper, we present an experimental and simulation based study to evaluate the use of full-duplex as a mode in practical IEEE 802.11 networks. To enable the study, we designed a 20 MHz multi-antenna OFDM full-duplex physical layer and…

Networking and Internet Architecture · Computer Science 2014-07-15 Melissa Duarte , Ashutosh Sabharwal , Vaneet Aggarwal , Rittwik Jana , K. K. Ramakrishnan , Christopher Rice , N. K. Shankaranarayanan

This article provides an overview of research on full-duplex at the University of California, Riverside, in the past decade. This research was initially focused on self-interference (SI) cancellation, then moved to applications of…

Signal Processing · Electrical Eng. & Systems 2020-07-30 Yingbo Hua

For future wireless communication systems, full duplex is seen as a possible solution to the ever present spectrum shortage. The key aspect to enable In-Band Full Duplex (IBFD) is sufficient cancellation of the unavoidable Self-Interference…

Signal Processing · Electrical Eng. & Systems 2017-11-21 Mustafa Emara , Patrick Rosson , Kilian Roth , David Dassonville

In this paper, we consider two fundamental full-duplex (FD) architectures, two-node and three-node, in the context of cellular networks where the terminals employ directional antennas. The simultaneous transmission and reception of data in…

Information Theory · Computer Science 2016-11-03 Constantinos Psomas , Mohammadali Mohammadi , Ioannis Krikidis , Himal A. Suraweera

This paper studies the degrees of freedom of full-duplex multicell networks that share the spectrum among multiple cells in a non-orthogonal setting. In the considered network, we assume that {\em full-duplex} base stations with multiple…

Information Theory · Computer Science 2016-11-15 Sung Ho Chae , Sang-Woon Jeon , Sung Hoon Lim

This paper develops a novel methodology for designing analog beamforming codebooks for full-duplex millimeter wave (mmWave) transceivers, the first such codebooks to the best of our knowledge. Our design reduces the self-interference…

Signal Processing · Electrical Eng. & Systems 2021-05-31 Ian P. Roberts , Hardik B. Jain , Sriram Vishwanath , Jeffrey G. Andrews

This letter develops a novel transmit beamforming (BF) design for canceling self-interference (SI) in analog in-band full-duplex phased arrays. Our design maximizes transmit BF gain in a desired direction while simultaneously reducing SI…

Signal Processing · Electrical Eng. & Systems 2024-01-26 Ao Liu , Ian P. Roberts , Taneli Riihonen , Weixing Sheng

The success of full-stack full-duplex communication systems depends on how effectively one can achieve digital self-interference cancellation (SIC). Towards this end, in this paper, we consider unlimited sensing framework (USF) enabled…

Signal Processing · Electrical Eng. & Systems 2024-11-22 Ziang Liu , Ayush Bhandari , Bruno Clerckx

We study a three-node network with a full-duplex base-station communicating with one uplink and one downlink half-duplex node. In this network, both self-interference and inter-node interference are present. We use an antenna-theory-based…

Information Theory · Computer Science 2016-06-21 Yujun Chen , Ashutosh Sabharwal

Single-antenna full-duplex communication technology has the potential to substantially increase spectral efficiency. However, limited propagation domain cancellation of single-antenna system results in a higher impact of receiver chain…

Signal Processing · Electrical Eng. & Systems 2019-06-19 Md Atiqul Islam , Besma Smida

In full-duplex millimeter-wave (mmWave) systems, the effects of beam squint and the frequency-selectivity of self-interference exacerbate over wide bandwidths. This complicates the use of beamforming to cancel self-interference when…

Signal Processing · Electrical Eng. & Systems 2024-11-07 Sungho Cho , Ian P. Roberts

Recently, full duplex (FD) has been studied in 5G LTE millimeter wave (mmWave) cellular communications for New Radio in 3GPP releases 15-17. FD allows bidirectional transmission over the same resources and has the potential to reduce…

Signal Processing · Electrical Eng. & Systems 2022-02-08 Elyes Balti , Brian L. Evans

To increase the spectral efficiency of wireless networks without requiring full-duplex capability of user devices, a potential solution is the recently proposed three-node full-duplex mode. To realize this potential, networks employing…

Information Theory · Computer Science 2017-02-25 Jose Mairton B. da Silva , Gabor Fodor , Carlo Fischione