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Article
Telecommunications
Xinyi Wang et al.
Summary: This letter proposes a sensing-assisted uplink communications framework to protect information from being overheard. By transmitting radar signals to localize and jam eavesdroppers, while receiving uplink signals, the secrecy rate can be significantly improved.
IEEE COMMUNICATIONS LETTERS
(2022)
Article
Telecommunications
Sai Xu et al.
Summary: This study explores the use of intelligent reflecting surfaces for backscatter communication in a downlink multi-cell network, where each surface acts as a base station communicating with users. Coordinated multipoint transmission is used to maximize the network's weighted sum rate. Simulation results confirm the feasibility of the proposed scheme.
IEEE COMMUNICATIONS LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Meng Hua et al.
Summary: This study introduces a novel IRS-based SR system architecture and investigates BER minimization problems in both CSR and PSR scenarios. Different optimization algorithms are proposed for each scenario, and simulation results demonstrate the effectiveness of the algorithms and the superior performance of the proposed SR techniques.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
QingQing Wu et al.
Summary: Intelligent reflecting surface (IRS) is a promising technology for achieving spectrum and energy-efficient wireless networks cost-effectively. While most research has focused on enhancing wireless communication or information transmission, there is also potential for boosting the efficiency of radio frequency wireless energy transmission. This article discusses how to efficiently design IRS-aided wireless energy transmission systems and systems that combine both information transfer and energy transfer, presenting state-of-the-art solutions and pointing out directions for future research and investigation.
PROCEEDINGS OF THE IEEE
(2022)
Article
Computer Science, Hardware & Architecture
Sarah Basharat et al.
Summary: This article provides a tutorial overview of RIS-assisted BackCom systems, discussing the potential improvements and application cases of integrating RISs into BackCom systems, and outlining the future direction for translating this concept into real-world applications.
IEEE WIRELESS COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Sai Xu et al.
Summary: This paper investigates the computational task offloading of an energy-constrained mobile edge computing network using intelligent reflecting surface based backscatter communication. By optimizing various parameters, the sum computational bits can be maximized. Additionally, element clustering is proposed to reduce control and computation complexity.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2022)
Article
Computer Science, Information Systems
Yingjie Wu et al.
Summary: This letter proposes a reconfigurable intelligent surface (RIS)-based passive covert communication scheme, which utilizes the RIS to covertly transmit signals and adjust the phase shifts and reflection amplitude to align the phases of the received reflected signals at the receiver and satisfy the covert constraint. Analytical derivations of the detection error probability and decoding error probability in Rayleigh fading channels are presented. The results show that the proposed scheme can enhance transmission reliability by increasing the elements of the RIS while satisfying the covert constraint.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Xinyi Wang et al.
Summary: This paper investigates the application of partially-connected hybrid beamforming design in multi-user integrated sensing and communication systems. The design optimizes the digital and analog beamformers jointly to minimize the Cramer-Rao bound and satisfy the signal-to-interference-plus-noise ratio (SINR) constraints. An alternating optimization based framework is proposed, transforming the optimization problem and efficiently solving it through the proposed algorithm.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Ying-Chang Liang et al.
Summary: This article provides a comprehensive overview of backscatter communication assisted by reconfigurable intelligent surfaces (RIS). It covers the basics of backscatter communication, the details and roles of RIS in enhancing the backscatter link, as well as an overview of three types of RIS-assisted backscatter communication systems. The article also discusses emerging applications, technical challenges, and future opportunities in this field.
PROCEEDINGS OF THE IEEE
(2022)
Proceedings Paper
Computer Science, Information Systems
Xianxin Song et al.
Summary: This paper studies an intelligent reflecting surface (IRS)-assisted integrated sensing and communication (ISAC) system, and presents a joint beamforming design that improves sensing performance and ensures communication requirements. Numerical results show that the proposed design outperforms benchmark designs.
2022 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC)
(2022)
Article
Engineering, Electrical & Electronic
Xidong Mu et al.
Summary: The fundamental intelligent reflecting surface (IRS) deployment problem is investigated for IRS-assisted networks, where optimization techniques are used to solve the weighted sum rate maximization problem for different multiple access schemes. Results show that optimizing the deployment location of the IRS can significantly improve performance.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Jiakang Zheng et al.
Summary: This paper investigates the impact of channel aging on the performance of CF massive MIMO systems and draws several conclusions: in the uplink, the CF system achieves higher SE than the SC system; in the downlink, coherent transmission has higher SE than non-coherent transmission; statistical channel cooperation power control can mitigate inter-user interference.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2021)
Article
Telecommunications
Azzam Al-Nahari et al.
Summary: This study investigates the role of massive MIMO in improving the spectral and energy efficiency of monostatic backscatter communication systems, as well as the performance of precoders and combiners. The results show that with perfect channel state information, the total transmit power can be scaled down by a factor of the square of the number of transmit antennas without loss in performance.
IEEE COMMUNICATIONS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Xinyi Wang et al.
Summary: This paper investigates the network utility maximization problem in a dual-functional radar-communication multi-UAV network, proposing a computationally practical method to solve this NP-hard problem by decomposing it into three sub-problems and introducing three mechanisms based on spectral clustering, coalition game, and successive convex approximation. The proposed algorithm significantly improves the minimum user data rate and fairness of the network while increasing network utility with lower power consumption and similar localization accuracy compared to conventional techniques.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2021)
Article
Computer Science, Information Systems
Samith Abeywickrama et al.
Summary: A new and efficient channel estimation scheme for IRS-assisted backscatter communication systems is proposed in the letter, which minimizes the mean-square error by designing the IRS training reflection matrix. Simulation results show the effectiveness of the proposed scheme compared to other baseline schemes.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Qianqian Zhang et al.
Summary: This paper proposes a novel RIS-assisted MIMO SR system, where the wireless environment is intelligently reconfigured to enhance primary transmission and cognitive backscattering communication is used for secondary transmission. By jointly designing active transmit beamformer and passive reflecting beamformer, the total transmit power at the primary transmitter is minimized while meeting SNR constraint and rate constraint. The proposed algorithm is analyzed for convergence performance and computational complexity, and a low-complexity algorithm using SDR technique is developed for reflecting beamformer design. Theoretical analysis and simulation results validate the effectiveness and superiority of the system.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Ziyang Cheng et al.
Summary: This paper investigates the transmit sequence design for a DFRC system equipped with one-bit DACs, proposing two design methods and conducting numerical simulations to demonstrate their effectiveness.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Xinyi Wang et al.
Summary: The dual-functional radar-communication (DFRC) technique is considered a promising component in emerging platforms, but waveform design limitations can lead to high multi-user interference (MUI) and degraded communication performance. Inspired by Reconfigurable Intelligent Surface (RIS) applications in mitigating MUI, this paper investigates joint waveform design and passive beamforming in RIS-assisted DFRC systems. Simulation results show that with RIS assistance, system throughput can be significantly improved and the obtained beampattern matches the target transmit beampattern better than scenarios without RIS.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2021)
Article
Automation & Control Systems
Guannan Qu et al.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2020)
Article
Engineering, Electrical & Electronic
Qingqing Wu et al.
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
Murat Temiz et al.
2020 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS WORKSHOPS (ICC WORKSHOPS)
(2020)
Article
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J. Andrew Zhang et al.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2019)
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Shuai Wang et al.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2019)
Article
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Deepak Mishra et al.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2019)
Article
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Nguyen Van Huynh et al.
IEEE COMMUNICATIONS SURVEYS AND TUTORIALS
(2018)
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Gang Yang et al.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2018)
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Kaiming Shen et al.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2018)
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Fan Liu et al.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2018)
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Dusan Jakovetic et al.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2014)
Article
Operations Research & Management Science
Hande Y. Benson et al.
COMPUTATIONAL OPTIMIZATION AND APPLICATIONS
(2007)
Article
Engineering, Electrical & Electronic
Petre Stoica et al.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2007)
