Results 61 to 70 of about 1,486 (213)

Hybrid Radio over Fiber with Radio over Free Space Optic for 5G Fronthaul Network Implementation in Urban Areas

Jurnal Rekayasa Elektrika, 2023
Optical fiber can meet the demand for fronthaul on 5G networks that offer high bandwidth, large capacity, high data rate and is free from electromagnetic interference. However, deploying infrastructure faces issues like permits and high costs.
Nabila Syadzwina Effendi, Yus Natali, Catur Apriono   +2 more
doaj   +1 more source

Digital Predistortion Based Experimental Evaluation of Optimized Recurrent Neural Network for 5G Analog Radio Over Fiber Links

IEEE Access
In the context of Enhanced Remote Area Communications (ERAC), Radio over Fiber (RoF) technology plays a crucial role in extending reliable connectivity to underserved and remote areas. This paper explores the significance of fifth-generation (5G) Digital
Muhammad Usman Hadi, Kamaluddeen Usman Danyaro, Alawi AlQushaibi, Rizwan Qureshi, Tanvir Alam   +4 more
doaj   +1 more source

A QoS-Enabled Medium-Transparent MAC Protocol for Fiber-Wireless 5G RAN Transport Networks

Applied Sciences, 2022
In order to meet the ever-increasing 5G and beyond Radio Access Network (RAN) densification demands, Fiber-Wireless transport networks are expected to play a key role in accelerating 5G deployment by providing the essential RAN flexibility, while at the ...
George Kalfas, Dimitris Palianopoulos, Agapi Mesodiakaki, Marios Gatzianas, Christos Vagionas, Ronis Maximidis, Nikos Pleros   +6 more
doaj   +1 more source

Millimeter‐Wave Antennas: A Comprehensive State‐of‐the‐Art Review of Design Approaches, Operating Bands, Challenges, and Applications in Body‐Centric and Emerging Systems

Radio Science, Volume 61, Issue 5, May 2026.
Abstract This paper reviews and classifies more than 120 recent contributions on millimeter‐wave (mm‐wave) antennas, with emphasis on their operating bands, design methods, and application domains. It surveys the main mm‐wave frequency ranges and their use in 5G/6G communications, radar and sensing, biomedical and body‐centric systems, imaging, and ...
Sarra Khacha, Chemseddine Zebiri, Mohammad Alibakhshikenari, Djamel Sayad, Issa Elfergani, Muhammad Akmal Chaudhary, Nisar Ahmad Abbasi, Arpan Desai, Jonathan Rodriguez, Takfarinas Saber, Ernesto Limiti   +10 more
wiley   +1 more source

Naked‐Eye Visual Warning of ppmv‐Level Fault‐Free Humidity Upper Limit

Advanced Science, Volume 13, Issue 14, 9 March 2026.
In this study, based on the urgent need in many critical fields for ppmv‐level fault‐free humidity upper limit (ppmv‐FFHUL) monitoring, an innovative threshold gated humidity sensing technology was developed. It exhibits superior portability (as thin and light as paper) and highly economic feature (without auxiliary instruments at all), and can achieve
Xiaoyan Wei, Tianyou Qin, Siyu Wang, Sean Xiao‐An Zhang, Lan Sheng   +4 more
wiley   +1 more source

Bidirectional Radio-Over-Fiber Systems Using Double-Clad Fibers for Optically Powered Remote Antenna Units

IEEE Photonics Journal, 2015
This paper shows and experimentally demonstrates bidirectional radio over fiber (RoF) using a double-clad fiber (DCF) for optically powered remote antenna units (RAUs).
Motoharu Matsuura, Jun Sato
doaj   +1 more source

M2 Macrophages are Major Mediators of Germline Risk of Endometriosis and Explain Pleiotropy With Comorbid Traits

Advanced Science, Volume 12, Issue 41, November 6, 2025.
Genes associated with endometriosis risk are highly expressed in M2 macrophages, particularly ligands IL1A and IL1B. Endometrial‐type epithelium and stroma are likely recipients of these ligands. While IL1B treatment disturbs epithelial organization, blockage of the signaling results in a dose‐dependent decrease in spontanesous and evoked pain, reduces
Soledad Ochoa, Fernanda S. Rasquel‐Oliveira, Brett McKinnon, Marcela Haro, Sugarniya Subramaniam, Pak Yu, Simon Coetzee, Michael S. Anglesio, Kelly N. Wright, Raanan Meyer, Anne E. Porter, Caroline E. Gargett, Sally Mortlock, Grant W. Montgomery, Michael S. Rogers, Kate Lawrenson   +15 more
wiley   +1 more source

Distributed remote antenna unit with selection‐based of (RoF‐IoT) paradigm: Performance improvement

IET Communications, Volume 19, Issue 1, January/December 2025.
Abstract Mixing the wireless medium with fiber optics can form a new communication system called a radio‐over‐fiber (RoF) network; it is a promising solution that can provide high bandwidth and a reliable connection between numerous sensors in wireless sensor networks (WSN) and the central office (base station) within a particular area.
Shakir Salman Ahmad, Hamed Al‐Raweshidy, Ahmed Alkhayyat   +2 more
wiley   +1 more source

A Cascode Pair Based on SiGe HPT for RoF/LiFi Applications

Electronics Letters, Volume 61, Issue 1, January/December 2025.
In this letter, a Si/SiGe phototransistor fully integrated in an industrial 55‐nm node BiCMOS technology is incorporated in a cascode pair for high‐speed photodetection. After having presented the phototranistor structure, the opto‐microwave performances are discussed and compared with a single stage phototransistor.
Thary Valentin, Algani Catherine, Chevalier Pascal, Polleux Jean‐Luc   +3 more
wiley   +1 more source

Sub‐THz Generation Device Based on Optical Difference Frequency Generation Using MgO:LiTaO3${\rm LiTaO}_3$ Rectangular Waveguide

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This letter proposes a sub‐THz generation device based on optical difference‐frequency generation in a periodically poled MgO:LiTaO3 rectangular waveguide. Experimental demonstration verified signal generation at ~100 GHz from an intensity‐modulated optical input using a frequency‐quadrupled two‐tone source.
Ken Paramayudha, Yui Otagaki, Hiroshi Murata   +2 more
wiley   +1 more source