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A near-field simultaneous wireless information and power transfer (SWIPT) network is investigated, where the hybrid beamforming architecture is employed at the base station (BS) for information transmission while charging energy harvesting…

Information Theory · Computer Science 2023-05-09 Zheng Zhang , Yuanwei Liu , Zhaolin Wang , Xidong Mu , Jian Chen

Intelligent reflecting surface (IRS) that enables the control of the wireless propagation environment has been looked upon as a promising technology for boosting the spectrum and energy efficiency in future wireless communication systems.…

Signal Processing · Electrical Eng. & Systems 2020-02-26 Samith Abeywickrama , Rui Zhang , Chau Yuen

Intelligent reflecting surface (IRS) is a promising technology to boost the efficiency of wireless energy transfer (WET) systems. However, for a multiuser WET system, simultaneous multi-beam energy transmission is generally required to…

Information Theory · Computer Science 2022-05-19 Chi Qiu , Qingqing Wu , Meng Hua , Xinrong guan , Yuan Wu

Simultaneous wireless information and power transfer (SWIPT) has been envisioned as a promising technology to support ubiquitous connectivity and reliable sustainability in Internet-of-Things (IoT) networks, which, however, generally…

Information Theory · Computer Science 2025-11-17 Yanze Zhu , Qingqing Wu , Xinrong Guan , Ziyuan Zheng , Honghao Wang , Wen Chen , Yang Liu , Yuan Guo

Reconfigurable intelligent surfaces (RISs) achieve high passive beamforming gains for signal enhancement or interference nulling by dynamically adjusting their reflection coefficients. Their employment is particularly appealing for…

Information Theory · Computer Science 2022-12-01 Ming-Min Zhao , Kaidi Xu , Yunlong Cai , Yong Niu , Lajos Hanzo

Reconfigurable Intelligent Surface (RIS) has becoming a useful tool in future wireless communication systems for close-distance communication network. This paper we use Reconfigurable Intelligent Surface (RIS) for downlink multi-user…

Information Theory · Computer Science 2021-02-02 RuiTianYi Lu

Intelligent reflecting surface (IRS) is a promising technology for achieving high spectrum efficiency in future wireless networks by leveraging massive low-cost reflecting elements with each reflecting the incident signal with a proper…

Information Theory · Computer Science 2018-10-29 Qingqing Wu , Rui Zhang

This paper models an active intelligent reflecting surface (IRS) -assisted wireless communication network, which has the ability to adjust power between BS and IRS. We aim to maximize the signal-to-noise ratio of user by jointly designing…

Signal Processing · Electrical Eng. & Systems 2024-06-11 Qiankun Cheng , Jiatong Bai , Baihua Shi , Wei Gao , Feng Shu

In this paper, a novel intelligent reflecting surface (IRS)-assisted wireless powered communication network (WPCN) architecture is proposed for power-constrained Internet-of-Things (IoT) smart devices, where IRS is exploited to improve the…

Information Theory · Computer Science 2021-12-07 Zhendong Li , Wen Chen , Qingqing Wu , Huanqing Cao , Kunlun Wang , Jun Li

Radio frequency wireless energy transfer (WET) is a promising solution for powering autonomous Internet of Things (IoT) deployments. In this work, we leverage energy beamforming for powering multiple user equipments (UEs) with stringent…

Information Theory · Computer Science 2022-03-02 Onel L. A. López , Dileep Kumar , Richard Demo Souza , Petar Popovski , Antti Tölli , Matti Latva-aho

Integrating different functionalities, conventionally implemented as dedicated systems, into a single platform allows utilising the available resources more efficiently. We consider an integrated sensing and power transfer (ISAPT) system…

Reconfigurable intelligent surface (RIS) can effectively control the wavefront of the impinging signals and has emerged as a cost-effective promising solution to improve the spectrum and energy efficiency of wireless systems. Most existing…

Information Theory · Computer Science 2022-06-07 Yiming Liu , Erwu Liu , Rui Wang , Binyu Lu , Zhu Han

Intelligent reflecting surface (IRS) that enables the control of wireless propagation environment has recently emerged as a promising cost-effective technology for boosting the spectrum and energy efficiency in future wireless communication…

Information Theory · Computer Science 2020-02-25 Samith Abeywickrama , Rui Zhang , Qingqing Wu , Chau Yuen

Intelligent reflecting surface (IRS) has drawn a lot of attention recently as a promising new solution to achieve high spectral and energy efficiency for future wireless networks. By utilizing massive low-cost passive reflecting elements,…

Information Theory · Computer Science 2022-10-17 Ming-Min Zhao , Qingqing Wu , Min-Jian Zhao , Rui Zhang

This paper studies Integrated Sensing, Communication, and Powering (ISCAP) as a novel framework designed to enhance Internet of Things (IoT) applications within sixth-generation wireless networks. In these applications, in addition to IoT…

Signal Processing · Electrical Eng. & Systems 2025-03-12 Maryam Asadi Ahmadabadi , S. Mohammad Razavizadeh , Vahid Jamali

Radio Frequency (RF) wireless power transfer is a promising technology that has the potential to constantly power small Internet of Things (IoT) devices, enabling even battery-less systems and reducing their maintenance requirements.…

Systems and Control · Electrical Eng. & Systems 2024-08-01 Lukas Schulthess , Federico Villani , Philipp Mayer , Michele Magno

Recent advances on wireless energy transfer (WET) make it a promising solution for powering future Internet of Things (IoT) devices enabled by the upcoming sixth generation (6G) era. The main architectures, challenges and techniques for…

Networking and Internet Architecture · Computer Science 2021-01-05 Onel L. Alcaraz López , Hirley Alves , Richard Demo Souza , Samuel Montejo-Sánchez , Evelio M. García Fernández , Matti Latva-aho

The performance of Simultaneous Wireless Information and Power Transfer (SWIPT) is mainly constrained by the received Radio-Frequency (RF) signal strength. To tackle this problem, we introduce an Intelligent Reflecting Surface (IRS) to…

Information Theory · Computer Science 2021-12-06 Yang Zhao , Bruno Clerckx , Zhenyuan Feng

This paper investigates a novel transmissive reconfigurable intelligent surface (TRIS) transceiver-empowered simultaneous wireless information and power transfer (SWIPT) system with multiple information decoding (ID) and energy harvesting…

Signal Processing · Electrical Eng. & Systems 2025-11-25 Yuan Guo , Wen Chen , Yanze Zhu , Zhendong Li , Qiong Wu , Kunlun Wang

We investigate reconfigurable intelligent surface (RIS)-assisted simultaneous wireless information and power transfer (SWIPT) Internet of Things (IoT) networks, where energy-limited IoT devices are overlaid with cellular information users…

Information Theory · Computer Science 2024-07-18 Mohammadali Mohammadi , Hien Quoc Ngo , Michail Matthaiou