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Intelligent reflecting surface (IRS) is envisioned to play a significant role in future wireless communication systems thanks to its powerful capability of enabling smart and reconfigurable radio environment. In this paper, we study the…

Information Theory · Computer Science 2021-02-23 Weidong Mei , Rui Zhang

The adoption of reconfigurable intelligent surface (RIS) in wireless networks can enhance the spectrum- and energy-efficiency by controlling the propagation environment. Although the RIS does not consume any transmit power, the circuit…

Information Theory · Computer Science 2020-05-05 Siyuan Sun , Min Fu , Yuanming Shi , Yong Zhou

This letter proposes a scheme assisted by a reconfigurable intelligent surface (RIS) for efficient uplink traffic multiplexing between enhanced mobile broadband (eMBB) and ultra-reliable-low-latency communication (URLLC). The scheme…

Information Theory · Computer Science 2025-10-07 João Henrique Inacio de Souza , Victor Croisfelt , Radosław Kotaba , Taufik Abrão , Petar Popovski

A novel dynamic radio-cooperation strategy is proposed for Cloud Radio Access Networks (C-RANs) consisting of multiple Remote Radio Heads (RRHs) connected to a central Virtual Base Station (VBS) pool. In particular, the key capabilities of…

Information Theory · Computer Science 2015-08-11 Tuyen X. Tran , Dario Pompili

With the integration of Renewable Energy Sources (RESs), the power network must be robust to handle the system's uncertain scenarios. DC Transmission Expansion Planning (TEP) plans are generally not feasible for the AC network. A first…

Systems and Control · Electrical Eng. & Systems 2021-11-11 P. Naga Yasasvi , Abheejeet Mohapatra , Suresh Chandra Srivastava

This paper considers the joint design of user power allocation and relay beamforming in relaying communications, in which multiple pairs of single-antenna users exchange information with each other via multiple-antenna relays in two time…

Information Theory · Computer Science 2017-01-27 Zhichao Sheng , Hoang D. Tuan , Trung Q. Duong , H. Vincent Poor

A multiple-input single-output cognitive radio downlink network is studied with simultaneous wireless information and power transfer. In this network, a secondary user coexists with multiple primary users and multiple energy harvesting…

Information Theory · Computer Science 2016-02-29 Fuhui Zhou , Zan Li , Julian Cheng , Qunwei Li , Jiangbo Si

In this paper, we study resource allocation for a full-duplex (FD) radio base station serving multiple half-duplex (HD) downlink and uplink users simultaneously. The considered resource allocation algorithm design is formulated as a…

Information Theory · Computer Science 2016-11-17 Derrick Wing Kwan Ng , Yan Sun , Robert Schober

In this paper, an reconfigurable intelligent surface (RIS)-aided millimeter wave (mmWave) non-orthogonal multiple access (NOMA) system is considered. In particular, we consider an RIS-aided mmWave-NOMA downlink system with a hybrid…

Signal Processing · Electrical Eng. & Systems 2020-10-20 Yue Xiu , Jun Zhao , Wei Sun , Marco Di Renzo , Guan Gui , Zhongpei Zhang , Ning Wei

In this paper, intelligent reflecting surface (IRS) is introduced to enhance the network performance of cognitive radio (CR) systems. Specifically, we investigate robust beamforming design based on both bounded channel state information…

Signal Processing · Electrical Eng. & Systems 2024-01-08 Lei Zhang , Cunhua Pan , Yu Wang , Hong Ren , Kezhi Wang

The concept of fluid reconfigurable intelligent surface (FRIS) upgrades the conventional reconfigurable intelligent surface (RIS) paradigm by empowering its reflecting elements with positioning reconfigurability. This letter aims to…

Information Theory · Computer Science 2025-11-21 Xusheng Zhu , Kai-Kit Wong , Boyi Tang , Wen Chen , Chan-Byoung Chae

We consider a robust beamforming problem where large amount of downlink (DL) channel state information (CSI) data available at a multiple antenna access point (AP) is used to improve the link quality to a user equipment (UE) for beyond-5G…

Information Theory · Computer Science 2023-08-15 Sai Subramanyam Thoota , Joao Vieira , Erik G. Larsson

Coordinated Multi-Point (CoMP) is known to be a key technology for next generation mobile communications systems, as it allows to overcome the burden of inter-cell interference. Especially in the uplink, it is likely that interference…

Information Theory · Computer Science 2010-02-18 Patrick Marsch , Gerhard Fettweis

The emergence of reconfigurable intelligent surfaces (RISs) enables us to establish programmable radio wave propagation that caters for wireless communications, via employing low-cost passive reflecting units. This work studies the…

Information Theory · Computer Science 2021-03-08 Li You , Jiayuan Xiong , Derrick Wing Kwan Ng , Chau Yuen , Wenjin Wang , Xiqi Gao

This work lies at the intersection of two cutting edge technologies envisioned to proliferate in future 6G wireless systems: Multi-access Edge Computing (MEC) and Reconfigurable Intelligent Surfaces (RISs). While the former will bring a…

Despite extensive research on reconfigurable intelligent surfaces (RISs) in recent years, existing beamforming methods still face significant challenges in achieving flexible and robust beam synthesis, which is an essential capability for a…

Information Theory · Computer Science 2025-05-28 Rujing Xiong , Ke Yin , Jialong Lu , Kai Wan , Tiebin Mi , Robert Caiming Qiu

The reconfigurable intelligent surface (RIS), which consists of a large number of passive and low-cost reflecting elements, has been recognized as a revolutionary technology to enhance the performance of future wireless networks. This paper…

Signal Processing · Electrical Eng. & Systems 2021-05-25 Linsong Du , Shihai Shao Gang Yang , Jianhui Ma , Qinpeng Liang , Youxi Tang

One of the most important goals of the 21st century is to change radically the way our society produces and distributes energy. This broad objective embodies in the smart grid's futuristic vision of a completely decentralized system powered…

Systems and Control · Computer Science 2013-05-20 Nicolas Gensollen , Vincent Gauthier , Michel Marot , Monique Becker

This paper proposes a coordinated home energy management system (HEMS) architecture where the distributed residential units cooperate with each other to achieve real-time power balancing. The economic benefits for the retailer and…

Systems and Control · Computer Science 2012-04-11 Tsung-Hui Chang , Mahnoosh Alizadeh , Anna Scaglione

A multiple antenna base station (BS) with an intelligent reflecting surface (IRS) platform, and several single antenna users are considered in the downlink mode. Simultaneous wireless information and power transfer (SWIPT) is utilized by…

Signal Processing · Electrical Eng. & Systems 2021-11-30 Shayan Zargari , Shahrokh Farahmand , Bahman Abolhassani
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