Results 51 to 60 of about 13,960 (190)

Exploiting Intelligent Reflecting Surfaces for Interference Channels With SWIPT [PDF]

IEEE Transactions on Wireless Communications, 2023
This paper considers intelligent reflecting surface (IRS)-aided simultaneous wireless information and power transfer (SWIPT) in a multi-user multiple-input single-output (MISO) interference channel (IFC), where multiple transmitters (Txs) serve their ...
Ying Gao, Qingqing Wu, Wen Chen, Celimuge Wu, Derrick Wing Kwan Ng, N. Al-Dhahir   +5 more
semanticscholar   +1 more source

Exploiting Intelligent Reflecting Surfaces in NOMA Networks: Joint Beamforming Optimization

IEEE Transactions on Wireless Communications, 2019
This paper investigates a downlink multiple-input single-output intelligent reflecting surface (IRS) aided non-orthogonal multiple access (NOMA) system, where a base station (BS) serves multiple users with the aid of IRSs. Our goal is to maximize the sum
Xidong Mu, Yuanwei Liu, Li Guo, Jiaru Lin, N. Al-Dhahir   +4 more
semanticscholar   +1 more source

mmWave Doubly-Massive-MIMO Communications Enhanced With an Intelligent Reflecting Surface: Asymptotic Analysis

IEEE Access, 2020
As a means to control wireless propagation environments, the use of emerging and novel intelligent reflecting surfaces (IRS) is envisioned to enhance and broaden many applications in future wireless networks.
Dian-Wu Yue, Ha H. Nguyen, Yu Sun
doaj   +1 more source

Intelligent Reflecting Surfaces: Sum-Rate Optimization Based on Statistical Position Information

IEEE Transactions on Communications, 2021
In this paper, we consider a multi-user multiple-input multiple-output (MIMO) system aided by multiple intelligent reflecting surfaces (IRSs) that are deployed to increase the coverage and, possibly, the rank of the channel.
A. Abrardo, D. Dardari, M. Di Renzo
semanticscholar   +1 more source

RIS Assisted Anti-Jamming in Next-Generation Wireless Communication Networks: A Survey of Threats, Solutions, and Research Challenges

IEEE Open Journal of the Communications Society
Rapid growth in wireless data traffic and the increasing demand for secure, low-latency communication have driven research toward next-generation (6G) technology, which aims to provide ubiquitous, secure wireless connectivity.
Zain Ul Abideen Tariq, Emna Baccour, Aiman Erbad, Mounir Hamdi   +3 more
doaj   +1 more source

A Survey on RIS Advances in Terahertz Communications: Emerging Paradigms and Research Frontiers

IEEE Access
Communication at terahertz (THz) frequencies has emerged as a potential answer to the challenge of providing massive capacity and ultra-high data speeds for 6G wireless networks.
Manzoor Ahmed, Abdul Wahid, Wali Ullah Khan, Feroz Khan, Asim Ihsan, Zain Ali, Khaled M. Rabie, Thokozani Shongwe, Zhu Han   +8 more
doaj   +1 more source

Exploiting Amplitude Control in Intelligent Reflecting Surface Aided Wireless Communication with Imperfect CSI

, 2021
Intelligent reflecting surface (IRS) is a promising new paradigm to achieve high spectral and energy efficiency for future wireless networks by reconfiguring the wireless signal propagation via passive reflection.
Wu, Qingqing, Zhang, Rui, Zhao, Min-Jian, Zhao, Ming-Min   +3 more
core  

Dynamic channel estimation in large-scale massive MIMO systems with intelligent reflecting surfaces: Leveraging Khatri-Rao factorization and bilinear alternating least squares

Ain Shams Engineering Journal
In large-scale massive MIMO systems with intelligent reflecting surfaces (IRS), dynamic channel estimation (CE) is essential for optimizing the system performance and ensuring reliable communication.
E. Elakkiyachelvan, R.J. Kavitha
doaj   +1 more source

Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact

Advanced Materials Technologies, EarlyView.
This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt, Katja Lange, Robert Göckeritz, Erik Grunwald, Angelika Hähnel, Alexander Müller, Volker Naumann, Sistan Rasuli, Wolfram Münchgesang, Bruno G. Pollet, Kerstin Witte‐Bodnar, Klemens Ilse   +11 more
wiley   +1 more source

Friend, Not Foe: Lowered Tissue Reactivity to Long‐Term Polyimide Implants

Advanced Science, EarlyView.
The choice of optimal neural probe designs remains a major challenge in the field of neurotechnology. This study investigated the biocompatibility of several probe variations, including material, thickness, width, and implantation strategy. It highlights the clear advantage of soft polyimide probes over stiff silicon probes for better device ...
Corinne Orlemann, Laura M. De Santis, Paul Neering, Christian Boehler, Kirti Sharma, Arno Aarts, Tobias Holzhammer, Rik J. J. van Daal, Patrick Ruther, Maria Asplund, Roxana N. Kooijmans, Pieter R. Roelfsema   +11 more
wiley   +1 more source