Results 71 to 80 of about 10,047 (146)

Phase shifter intelligent reflective surface design for 2.4 GHz

Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi
In this study, an intelligent reflective surface (IRS) design consisting of a 3x4 patch surface that intentionally changes the phase angles of incoming signals for the 2.4 GHz operating frequency is presented. In the design of this IRS, FR-4 is chosen as
Yasin Can Tekkol, Ayşe Elif Canbilen
doaj   +1 more source

Fast Reflective Beamforming With Situational Awareness in IRS Assisted Communication Systems

IEEE Access
In this paper, we investigate reflective beamforming methods for intelligent reflecting surface (IRS)-assisted communication systems. In our envisioned system, the IRS is equipped with computer vision to acquire situational awareness.
Masaaki Miura, Koya Sato, Ning Zhang, Katsuya Suto   +3 more
doaj   +1 more source

Performance Analysis of Active Elements at Main Lobe Region on Intelligent Reflecting Surface: Deploy It at BS-Side or User-Side?

IEEE Access
In this paper, the placement of active reflecting elements on an intelligent reflecting surface (IRS) is studied. With a hybrid IRS, the placement problem of finite active elements is vital to performance.
Fan-Hsun Tseng, Pei-de Guo, Chi-Yuan Chen, Hsin-Hung Cho   +3 more
doaj   +1 more source

Opportunistic Scheduling in IRS-Aided UAV Multi-User Wireless Communication Systems: Modeling and Analysis

IEEE Access
In this paper, we present the performance analysis of an opportunistic scheduling-based intelligent reflecting surface (IRS)-aided unmanned aerial vehicle (UAV) multi-user wireless communication system.
Neha Choudhary, Sandeep Joshi, Vinod Kumar Chaubey   +2 more
doaj   +1 more source

Comparative analysis of intelligent reflecting surfaces and AF/DF relaying for energy efficient wireless communication

EURASIP Journal on Wireless Communications and Networking
This paper presents a comparative analysis of intelligent reflecting surface (IRS) technology versus conventional amplify-and-forward (AF) and decode-and-forward (DF) relay schemes in wireless communication.
Kuldeep Yadav, Himanshu Parashar, Soumen Mondal   +2 more
doaj   +1 more source

Intelligent reflecting surface for sum rate enhancement in MIMO systems

Digital Communications and Networks
The research for the Intelligent Reflecting Surface (IRS) which has the advantages of cost and energy efficiency has been studied. Channel capacity can be effectively increased by appropriately setting the phase value of IRS elements according to the ...
Chan-Yeob Park, Ji-Sung Jung, Yeong-Rong Lee, Beom-Sik Shin, Hyoung-Kyu Song   +4 more
doaj   +1 more source

Secure Active Intelligent Reflecting Surface Communication against Colluding Eavesdroppers

Mathematics
An active intelligent reflecting surface (IRS)-assisted, secure, multiple-input–single-output communication method is proposed in this paper. In this proposed scheme, a practical and unfavorable propagation environment is considered by assuming that ...
Jiaxin Xu, Yuyang Peng, Runlong Ye, Wei Gan, Fawaz AL-Hazemi, Mohammad Meraj Mirza   +5 more
doaj   +1 more source

Inkjet printed intelligent reflecting surface (IRS) for indoor applications

A passive, low-cost, paper-based intelligent reflecting surface (IRS) is designed to reflect a signal in a desired direction to overcome non-line-of-sight scenarios in indoor environments.
Anzai, Daisuke, Fathnan, Ashif, Kondo, Takashi, Mori, Masayuki, Nakamura, Kazutomo, Njogu, Peter, Sugimoto, Masato, Suzuki, Kota, Takimoto, Kairi, Wakatsuchi, Hiroki   +9 more
core  

Optimized Wideband Beamforming for mm-wave Communication Systems with Intelligent Reflecting Surfaces

Journal of Communications Software and Systems
Millimeter wave-based intelligent reflecting surface communications represent a promising technology enabling 6G networks. However, taking advantage of the bandwidth of millimeter wave and the characteristics of IRS leads to the problem of beam splitting,
Hiba A. Alsawaf, Saad Ahmed Ayoob
doaj   +1 more source

IRS-aided cognitive radio short-packet communications over Nakagami-m fading channels: BLER analysis and deep learning evaluation

ETRI Journal
This study investigates intelligent reflecting surface (IRS)-assisted cognitiveradio (CR) short-packet communication (SPC) networks. In the secondarynetwork, a base station communicates with a user with support from an IRS ina Nakagami-m fading ...
Tu-Trinh Thi Nguyen, Xuan-Xinh Nguyen
doaj   +1 more source