Results 21 to 30 of about 22,297 (253)

Corrections to “WiThRay: A Versatile Ray-Tracing Simulator for Smart Wireless Environments”

open access: yesIEEE Access, 2023
In the above article [1], the reconfigurable intelligent surface (RIS) response model in (17) needs to be modified as follows:
Hyuckjin Choi   +4 more
doaj   +1 more source

Spectral and Energy Efficiency of IRS-Assisted MISO Communication with Hardware Impairments [PDF]

open access: yes, 2020
In this letter, we analyze the spectral and energy efficiency of an intelligent reflecting surface (IRS)-assisted multiple-input single-output (MISO) downlink system with hardware impairments.
Alouini, Mohamed-Slim   +4 more
core   +4 more sources

Multicell MIMO Communications Relying on Intelligent Reflecting Surfaces [PDF]

open access: yes, 2020
Intelligent reflecting surfaces (IRSs) constitute a disruptive wireless communication technique capable of creating a controllable propagation environment.
Elkashlan, Maged   +6 more
core   +2 more sources

A Survey on the Impact of Intelligent Surfaces in the Terahertz Communication Channel Models

open access: yesSensors, 2023
Terahertz (THz) band will play an important role in enabling sixth generation (6G) envisioned applications. Compared with lower frequency signals, THz waves are severely attenuated by the atmosphere temperature, pressure, and humidity.
Jefferson D. S. E Silva   +6 more
doaj   +1 more source

Application of reconfigurable intelligent surface in beamforming and information modulation

open access: yesDianxin kexue, 2021
In modern mobile communications, the randomness, uncertainty, and uncontrollability of wireless channels are the pivotalfactors that affect the communication quality, which often leads to the deterioration of the signal quality at the receiving terminal,
Qiang CHENG   +4 more
doaj   +2 more sources

Downlink and Uplink Intelligent Reflecting Surface Aided Networks: NOMA and OMA

open access: yes, 2021
Intelligent reflecting surfaces (IRSs) are envisioned to provide reconfigurable wireless environments for future communication networks. In this paper, both downlink and uplink IRS-aided non-orthogonal multiple access (NOMA) and orthogonal multiple ...
Cheng, Yanyu   +4 more
core   +1 more source

Intelligent Spectrum Learning for Wireless Networks With Reconfigurable Intelligent Surfaces [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2021
Reconfigurable intelligent surface (RIS) has become a promising technology for enhancing the reliability of wireless communications, which is capable of reflecting the desired signals through appropriate phase shifts. However, the intended signals that impinge upon an RIS are often mixed with interfering signals, which are usually dynamic and unknown ...
Bo Yang   +5 more
openaire   +2 more sources

Interference Nulling Using Reconfigurable Intelligent Surface [PDF]

open access: yesIEEE Journal on Selected Areas in Communications, 2022
This paper is accepted in IEEE Journal on Selected Areas in ...
Tao Jiang, Wei Yu
openaire   +2 more sources

Aerial Reconfigurable Intelligent Surface-Enabled URLLC UAV Systems

open access: yesIEEE Access, 2021
In this paper, we propose an aerial reconfigurable intelligent surface (RIS) system to support the stringent constraints of ultra-reliable low latency communication (URLLC).
Yijiu Li   +4 more
doaj   +1 more source

Reconfigurable Intelligent Surface-Assisted Space Shift Keying [PDF]

open access: yesIEEE Wireless Communications Letters, 2020
The concept of reconfigurable intelligent surface (RIS)-assisted transmission, where phases of reflected signals are adjusted in an effective arrangement, has been recently put forward as a promising solution for 6G and beyond networks. Considering this and the undeniable potential of index modulation (IM) techniques, an RIS-based space shift keying ...
Ayse E. Canbilen   +2 more
openaire   +5 more sources

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