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As a new technology to reconfigure wireless communication environment by signal reflection controlled by software, intelligent reflecting surface (IRS) has attracted lots of attention in recent years. Compared with conventional relay…

Information Theory · Computer Science 2023-11-07 Rongen Dong , Zhongyi Xie , Feng Shu , Mengxing Huang , Jiangzhou Wang

In this paper, the dominant factor affecting the performance of active intelligent reflecting surface (IRS) aided wireless communication networks in Rayleigh fading channel, namely the average signal-to-noise ratio (SNR) $\gamma_0$ at IRS,…

Signal Processing · Electrical Eng. & Systems 2023-06-06 Yan Wang , Feng Shu , Zhihong Zhuang , Rongen Dong , Qi Zhang , Di Wu , Liang Yang , Jiangzhou Wang

In this paper, the feasibility of adopting an intelligent reflective surface (IRS) in a cell-free wireless communication system is studied. The received signal-to-noise ratio (SNR) for this IRS-enabled cell-free set-up is optimized by…

Signal Processing · Electrical Eng. & Systems 2021-09-28 Diluka Loku Galappaththige , Dhanushka Kudathanthirige , Gayan Amarasuriya

In this paper, we analyze the error probability of reconfigurable intelligent surfaces (RIS)-enabled communication systems with quantized channel phase compensation over Rayleigh fading channels. The probability density and characteristic…

Information Theory · Computer Science 2021-01-11 Iméne Trigui , Edouard Komi Agbogla , Mustapha Benjillali , Wessam Ajib , Wei-Ping Zhu

The radio frequency (RF) phase shifter with finite quantization bits in analog beamforming (AB) structure forms quantization error (QE) and causes a performance loss of received signal to interference plus noise ratio (SINR) at the receiver…

Information Theory · Computer Science 2019-04-10 Jiayu Li , Ling Xu , Ping Lu , Tingting Liu , Zhihong Zhuang , Jinsong Hu , Feng Shu , Jiangzhou Wang

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

The fundamental performance metrics of an intelligent reflective surface (IRS)-aided wireless system are presented. By optimizing the IRS phase-shift matrix, the received signal-to-noise ratio (SNR) is maximized at the destination in the…

Signal Processing · Electrical Eng. & Systems 2020-10-26 Dulaj Gunasinghe , Dhanushka Kudathanthirige , Gayan Amarasuriya Aruma Baduge

A statistical characterization of the fundamental performance bounds of an intelligent reflective surface (IRS) intended for aiding wireless communications is presented. To this end, the outage probability, average symbol error probability,…

Signal Processing · Electrical Eng. & Systems 2020-02-14 Dhanushka Kudathanthirige , Dulaj Gunasinghe , Gayan Amarasuriya

Intelligent reconfigurable surface (IRS) is being seen as a promising technology for 6G wireless networks. The IRS can reconfigure the wireless propagation environment, which results in significant performance improvement of wireless…

Information Theory · Computer Science 2020-10-02 Dharmendra Dixit , Kishor Chandra Joshi , Sanjeev Sharma

Intelligent reflecting surface (IRS) is a cost-effective solution for achieving high spectrum and energy efficiency in future wireless networks by leveraging massive low-cost passive elements that are able to reflect the signals with…

Information Theory · Computer Science 2020-01-03 Qingqing Wu , Rui Zhang

In this paper, a comprehensive performance analysis of a distributed intelligent reflective surfaces (IRSs)-aided communication system is presented. First, the optimal signal-to-noise ratio (SNR), which is attainable through the direct and…

Information Theory · Computer Science 2022-02-10 Diluka Loku Galappaththige , Dhanushka Kudathanthirige , Gayan Amarasuriya Aruma Baduge

We analyse the performance of a communication link assisted by an intelligent reflective surface (IRS) positioned in the far field of both the source and the destination. A direct link between the transmitting and receiving devices is…

Signal Processing · Electrical Eng. & Systems 2020-08-25 Tianxiong Wang , Gaojie Chen , Justin P. Coon , Mihai-Alin Badiu

This paper investigates the performance of an intelligent reflecting surface (IRS)-assisted terahertz (THz) communication system, where the IRS facilitates connectivity between the source and destination nodes in the absence of a direct…

Signal Processing · Electrical Eng. & Systems 2025-12-11 Soumendu Das , Nagendra Kumar , Dharmendra Dixit

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) is envisioned as a promising hardware solution to hardware cost and energy consumption in the fifth-generation (5G) mobile communication network. It exhibits great advantages in enhancing data…

Information Theory · Computer Science 2024-10-30 Zhe Xing , Rui Wang , Jun Wu , Erwu Liu

Intelligent Reflecting Surfaces (IRS) promise low-power coverage extension, yet practical deployments must curb hardware complexity and control overhead. This paper quantifies the performance impact of two cost-saving measures, column-wise…

Emerging Technologies · Computer Science 2025-12-01 Yizhi He , Sayed Amir Hoseini , Mahbub Hassan

This paper presents a literature review on recent applications and design aspects of the intelligent reflecting surface (IRS) in the future wireless networks. Conventionally, the network optimization has been limited to transmission control…

Information Theory · Computer Science 2020-07-28 Shimin Gong , Xiao Lu , Dinh Thai Hoang , Dusit Niyato , Lei Shu , Dong In Kim , Ying-Chang Liang

This paper investigates the information-theoretic energy efficiency of intelligent reflecting surface (IRS)-aided wireless communication systems, taking into account the statistical quality-of-service (QoS) constraints on delay violation…

Information Theory · Computer Science 2024-11-04 Wenhao Wang , Deli Qiao , Lei Yang , Yueying Zhan , Derrick Wing Kwan Ng

Intelligent reflecting surface (IRS) is envisioned to have abundant applications in future wireless networks by smartly reconfiguring the signal propagation for performance enhancement. Specifically, an IRS consists of a large number of…

Information Theory · Computer Science 2018-09-13 Qingqing Wu , Rui Zhang

Intelligent Reflecting Surface (IRS) utilizes low-cost, passive reflecting elements to enhance the passive beam gain, improve Wireless Energy Transfer (WET) efficiency, and enable its deployment for numerous Internet of Things (IoT)…

Signal Processing · Electrical Eng. & Systems 2023-11-16 Cheng Luo , Jie Hu , Luping Xiang , Kun Yang , Kai-Kit Wong
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