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This work examines the performance gain achieved by deploying an intelligent reflecting surface (IRS) in covert communications. To this end, we formulate the joint design of the transmit power and the IRS reflection coefficients by taking…

Information Theory · Computer Science 2022-01-12 Xiaobo Zhou , Shihao Yan , Qingqing Wu , Feng Shu , Derrick Wing Kwan Ng

Recently, terahertz (THz) communication has drawn considerable attention as one of the promising technologies for the future wireless communications owning to its ultra-wide bandwidth. Nonetheless, one major obstacle that prevents the…

Information Theory · Computer Science 2020-09-15 Wanming Hao , Gangcan Sun , Ming Zeng , Zhengyu Zhu , Zheng Chu , Octavia A. Dobre , Pei Xiao

This paper considers an intelligent reflecting surface(IRS)-aided wireless powered communication network (WPCN), where devices first harvest energy from a power station (PS) in the downlink (DL) and then transmit information using…

Information Theory · Computer Science 2021-09-03 Piao Zeng , Qingqing Wu , Deli Qiao

The proliferation of data-intensive and low-latency applications has driven the development of multi-access edge computing (MEC) as a viable solution to meet the increasing demands for high-performance computing and storage capabilities at…

Networking and Internet Architecture · Computer Science 2024-08-26 Pyae Sone Aung , Kitae Kim , Yan Kyaw Tun , Zhu Han , Choong Seon Hong

Incorporating mobile edge computing (MEC) and integrated sensing and communication (ISAC) has emerged as a promising technology to enable integrated sensing, communication, and computing (ISCC) in the sixth generation (6G) networks. ISCC is…

Signal Processing · Electrical Eng. & Systems 2025-07-23 Peng Liu , Xinyi Wang , Zesong Fei , Yuan Wu , Jie Xu , Arumugam Nallanathan

We investigate transmission optimization for intelligent reflecting surface (IRS) assisted multi-antenna systems from the physical-layer security perspective. The design goal is to maximize the system secrecy rate subject to the source…

Information Theory · Computer Science 2020-05-12 Hong Shen , Wei Xu , Shulei Gong , Zhenyao He , Chunming Zhao

The proliferation of innovative mobile services such as augmented reality, networked gaming, and autonomous driving has spurred a growing need for low-latency access to computing resources that cannot be met solely by existing centralized…

Networking and Internet Architecture · Computer Science 2019-01-28 Konstantinos Poularakis , Jaime Llorca , Antonia M. Tulino , Ian Taylor , Leandros Tassiulas

Intelligent reflecting surface (IRS) is a new and promising paradigm to substantially improve the spectral and energy efficiency of wireless networks, by constructing favorable communication channels via tuning massive low-cost passive…

Information Theory · Computer Science 2021-05-18 Jiangbin Lyu , Rui Zhang

Intelligent reflecting surface (IRS) is a new and revolutionary technology capable of reconfiguring the wireless propagation environment by controlling its massive low-cost passive reflecting elements. Different from prior works that focus…

Information Theory · Computer Science 2021-11-05 Bifeng Ling , Jiangbin Lyu , Liqun Fu

This paper studies a broadband orthogonal frequency division multiplexing (OFDM) system aided by a beyond diagonal intelligent reflecting surface (BD-IRS), where inter-connections exist among different elements such that the reflection…

Information Theory · Computer Science 2025-09-09 Ye Yuan , Shuowen Zhang

Unmanned aerial vehicle (UAV)-assisted multi-access edge computing (MEC) has become one promising solution for energy-constrained devices to meet the computation demand and the stringent delay requirement. In this work, we investigate a…

Networking and Internet Architecture · Computer Science 2020-11-25 Nway Nway Ei , Madyan Alsenwi , Yan Kyaw Tun , Zhu Han , Choong Seon Hong

Security and energy efficiency have become crucial features in the modern-era wireless communication. In this paper, we consider an energy-efficient design for intelligent reflecting surface (IRS)-assisted multiple-input multiple-output…

Signal Processing · Electrical Eng. & Systems 2022-09-02 Anshu Mukherjee , Vaibhav Kumar , Derrick Wing Kwan Ng , Le-Nam Tran

This paper investigates an intelligent reflective surface (IRS) assisted secure multi-user two-way communication system. The aim of this paper is to enhance the physical layer security by optimizing the minimum secrecy-rate among all…

Information Theory · Computer Science 2025-01-27 Harindu Jayarathne , Tharindu Wickremasinghe , Kasun T. Hemachandra , Tharaka Samarasinghe , Saman Atapattu

An intelligent reflecting surface (IRS)-aided wireless powered mobile edge computing (WP-MEC) system is conceived, where each device's computational task can be divided into two parts for local computing and offloading to mobile edge…

Information Theory · Computer Science 2021-08-24 Guangji Chen , Qingqing Wu , Wen Chen , Derrick Wing Kwan Ng , Lajos Hanzo

In this paper, a novel transmissive reconfigurable meta-surface (RMS) transceiver enabled multi-tier computing network architecture is proposed for improving computing capability, decreasing computing delay and reducing base station (BS)…

Signal Processing · Electrical Eng. & Systems 2022-10-28 Zhendong Li , Wen Chen , Ziwei Liu , Hongying Tang , Jianmin Lu

Intelligent reflecting surface (IRS) is envisioned as a revolutionary technology for future wireless communication systems since it can intelligently change radio environment and integrate it into wireless communication optimization.…

Signal Processing · Electrical Eng. & Systems 2021-01-05 Hongyu Li , Wenhao Cai , Yang Liu , Ming Li , Qian Liu , Qingqing Wu

In this paper, we consider an intelligent reflecting surface (IRS)-aided cell-free massive multiple-input multiple-output system, where the beamforming at access points and the phase shifts at IRSs are jointly optimized to maximize energy…

Signal Processing · Electrical Eng. & Systems 2022-12-27 Si-Nian Jin , Dian-Wu Yue , Yi-Ling Chen , Qing Hu

Intelligent reflecting surfaces (IRSs) are a promising technology for enhancing coverage and spectral efficiency, both in the sub-6 GHz and the millimeter wave (mmWave) bands. Existing approaches to leverage the benefits of IRS involve the…

Information Theory · Computer Science 2023-07-03 L. Yashvanth , Chandra R. Murthy

In this paper, we propose intelligent reflecting surfaces (IRS) assisted secure wireless communications with multi-input and multi-output antennas (IRS-MIMOME). The considered scenario is an access point (AP) equipped with multiple antennas…

Information Theory · Computer Science 2020-01-27 Weiheng Jiang , Yu Zhang , Jinsong Wu , Wenjiang Feng , Yi Jin

With the emergence of diverse mobile applications (such as augmented reality), the quality of experience of mobile users is greatly limited by their computation capacity and finite battery lifetime. Mobile edge computing (MEC) and wireless…

Signal Processing · Electrical Eng. & Systems 2018-02-13 Fuhui Zhou , Yongpeng Wu , Haijian Sun , Zheng Chu
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