Joint Transmit and Reflective Beamforming Design for IRS-Assisted Multiuser MISO SWIPT Systems

Tang, Yizheng; Ma, Ganggang; Xie, Hailiang; Xu, Jie; Han, Xiao

doi:10.1109/icc40277.2020.9148892

Cited by 100 publications

(83 citation statements)

References 15 publications

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“…Research community has mainly focused on IRS-assisted communication scenarios, but IRS-assisted RF-powered systems has been gaining interest recently, e.g., refer to [97] for an analysis and optimization of an IRS-assisted WPCN, while an IRS-assisted SWIPT setup is investigated in [98]- [100]. Particularly attractive are the analysis and discussions carried out in [99] and [100], which are general enough to be extrapolated to purely WET-setups (the focus of our work) since EH devices and information decoding devices are considered as separate entities.…”

Section: Enhancements In Hardware and Mediummentioning

confidence: 99%

Massive Wireless Energy Transfer: Enabling Sustainable IoT Toward 6G Era

López

Alves

Souza

et al. 2021

IEEE Internet Things J.

153

108

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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 efficient and scalable wireless powering are overviewed in this article. Candidates enablers, such as energy beamforming (EB), distributed antenna systems (DASs), advances on devices' hardware and programmable medium, new spectrum opportunities, resource scheduling, and distributed ledger technology are outlined. Special emphasis is placed on discussing the suitability of channel state information (CSI)-limited/free strategies when powering simultaneously a massive number of devices. The benefits from combining DAS and EB, and from using average CSI whenever available, are numerically illustrated. The pros and cons of the state-of-the-art CSI-free WET techniques in ultralow power setups are thoroughly revised, and some possible future enhancements are outlined. Finally, key research directions toward realizing WET-enabled massive IoT networks in the 6G era are identified and discussed in detail. Index Terms-Channel state information (CSI), distributed antenna systems (DASs), distributed ledger technology (DLT), energy beamforming (EB), intelligent reflective surfaces, Internet of Things (IoT), massive wireless energy transfer (WET), millimeter wave, sixth generation (6G), ultralow power. I. INTRODUCTION T HE SIXTH generation (6G) of wireless systems targets a data-driven sustainable society, enabled by nearinstant, secure, unlimited and green connectivity [1]-[3]. Stringent performance requirements in terms of security and

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Section: Enhancements In Hardware and Mediummentioning

confidence: 99%

Massive Wireless Energy Transfer: Enabling Sustainable IoT Toward 6G Era

López

Alves

Souza

et al. 2021

IEEE Internet Things J.

153

108

View full text Add to dashboard Cite

show abstract

“…Recently IRS has been combined with energy harvesting to improve SE and EE of the network. In [79] authors proposed an IRS based MISO system with multiple users by employing SWIPT.For a multi antenna system, joint optimization of transmit beamforming at the transmitter as well as passive reflective beamforming at IRS is suggested for maximizing the received power at EH receivers with SINR and maximum transmit power constraint at the ID receiver as well as the transmitter respectively. Authors in [80], discussed an IRS assisted downlink MISO system with multiple users and presented two low complexity EE maximization algorithms for transmit power allocation of BS and IRS reflector parameters.…”

Section: Intelligent Reconfigurable Surface (Irs)mentioning

confidence: 99%

Simultaneous Wireless Information and Power Transfer With Cooperative Relaying for Next-Generation Wireless Networks: A Review

et al. 2021

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Wireless Power Transfer (WPT) is an innovative technology employed for enhancing the energy sustainability of wireless devices with a limited life span. The idea of integrating WPT in wireless communication leads to the idea of Simultaneous Wireless Information and Power Transfer (SWIPT) that transfers information and power to wireless devices simultaneously, thereby resulting in a drastic increase in spectral efficiency of the network. SWIPT aided Cooperative Relaying (CoR) has emerged as a new trend for Fifth Generation (5G) and Beyond 5G (B5G) systems owing to the rapidly increasing challenges faced by these networks. Cooperative relaying combined with SWIPT can be helpful in overcoming the rising demands of next generation wireless networks by providing an enhanced date rate, low latency, shorter coverage, wide spread connectivity of massive number of devices along with energy-efficiency. This article provides a comprehensive review of SWIPT technology that enables the use of CoR networks for 5G and B5G mobile networks including the significance, technologies, and protocols which can be applied. This article also examines the deployment of cooperative SWIPT involving a single relay, multiple relays and optimal relay selection, multi antenna systems and optimal beamforming .SWIPT under the influence of Hardware Impairments (HI), imperfect Channel State Information (CSI), non-linear energy harvesting models, Intelligent Reconfigurable Surface (IRS), massive MIMO, massive access for the Internet of Things (IoT) has been discussed in detail. Meanwhile, this study discusses key challenges being faced in the implementation of SWIPT for future wireless networks that need to be addressed efficiently.

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“…Similarly, in [151], the authors studied joint active and passive beamforming optimization for IRS-aided multiuser MISO SWIPT network with linear EH model. The authors developed an AO and SDR algorithm to obtain a sub-optimal solution for the formulated non-convex max-min harvested power problem at all the EH receivers, under a given set of individual information receiver SINR-constraints, BS transmit power, and continuous IRS phase shifts.…”

Section: ) State-of-the-artmentioning

confidence: 99%

Reconfigurable Intelligent Surface Aided Multi-User Communications: State-of-the-Art Techniques and Open Issues

Munochiveyi

Pogaku

Do³

et al. 2021

IEEE Access

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Reconfigurable intelligent surface (RIS)-aided communication is considered as an exciting research topic in academic and industrial communities since it provides an emerging affordable solution to achieve high quality and secure next-generation wireless systems. Especially, the deployment of RIS in multi-user wireless networks promises to reduce system hardware costs, signal processing complexity, as well as energy consumption due to small size, lightweight and ability to actively shape the wireless propagation environment. Further, by realizing a cost-effective radio environment, RIS-aided communication can be implemented to be an appealing technology for future integration with other emerging wireless applications and communication systems. Despite the positive appeal, RISs face new challenges that hinder integrating efficiently into wireless networks, such as network secrecy performance and system sum-rates, as well as achieving efficient deployment design in highly dynamic and time-varying wireless environments. To this end, we overview recent state-of-the-art techniques to address the above issues faced in the integration of RISs with various emerging multi-user communication techniques, such as Unmanned Aerial Vehicles (UAVs), Non-Orthogonal Multiple Access (NOMA), Millimeter Wave (mmWave) and Terahertz (THz) communications, Physical Layer Security (PLS), massive antennas, and Simultaneous Wireless Information and Power Transfer (SWIPT). Finally, we highlight promising future research directions of RIS-aided communication in Cell-Free Massive Multiple-Input-Multiple-Output (MIMO) systems, Rate-Splitting Multiple Access (RSMA), Light Fidelity (LiFi), and Cognitive Radio (CR) systems.

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Joint Transmit and Reflective Beamforming Design for IRS-Assisted Multiuser MISO SWIPT Systems

Cited by 100 publications

References 15 publications

Massive Wireless Energy Transfer: Enabling Sustainable IoT Toward 6G Era

Massive Wireless Energy Transfer: Enabling Sustainable IoT Toward 6G Era

Simultaneous Wireless Information and Power Transfer With Cooperative Relaying for Next-Generation Wireless Networks: A Review

Reconfigurable Intelligent Surface Aided Multi-User Communications: State-of-the-Art Techniques and Open Issues

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