Results 31 to 40 of about 33,075 (295)

Linearization Technologies for Broadband Radio-Over-Fiber Transmission Systems

Photonics, 2014
Linearization technologies that can be used for linearizing RoF transmission are reviewed. Three main linearization methods, i.e. electrical analog linearization, optical linearization, and electrical digital linearization are presented and compared ...
Xiupu Zhang, Ran Zhu, Dongyan Shen, Taijun Liu   +3 more
doaj   +1 more source

Digital radio over fibre for future broadband wireless access network solution [PDF]

, 2010
Copyright @ 2010 IEEEDigital systems are more flexible and environment-process-tolerant than analogue systems. They are more reliable and robust against cross-talk, interference and channel noises, and are capable of covering higher dynamic range than ...
Abdollahi, SR, Al-Raweshidy, H, Mehdi Fakhraie, S, Nilavalan, R   +3 more
core   +1 more source

(IPC) Multigigabit Relay Link Using Millimeter-Wave Radio-Over-Fiber Technologies

IEEE Photonics Journal, 2013
A multigigabit relay transceiver system based on analog radio-over-fiber technology is proposed and experimentally evaluated for broadband radio-signal transmission in the millimeter-wave band, particularly at 60 GHz.
A. Kanno, T. Kawanishi, H. Ogawa, N. Shibagaki, H. Hanyu   +4 more
doaj   +1 more source

Orthogonal Chirp-Division Multiplexing for Future Converged Optical/Millimeter-Wave Radio Access Networks

IEEE Access, 2022
Envisaged network scaling in the beyond 5G and 6G era makes the optical transport of high bandwidth radio signals a critical aspect for future radio access networks (RANs), while the move toward wireless transmission in millimeter-wave (mm-wave) and ...
Colm Browning, Devika Dass, Paul Townsend, Xing Ouyang   +3 more
doaj   +1 more source

Hydrogen Epoch of Reionization Array (HERA) [PDF]

, 2016
The Hydrogen Epoch of Reionization Array (HERA) is a staged experiment to measure 21 cm emission from the primordial intergalactic medium (IGM) throughout cosmic reionization ($z=6-12$), and to explore earlier epochs of our Cosmic Dawn ($z\sim30 ...
Acedo, Eloy de Lera, Aguirre, James E, Alexander, Paul, Ali, Zaki S, Beardsley, Adam P, Bernardi, Gianni, Bowman, Judd D, Bradley, Richard F, Carilli, Chris L, Cheng, Carina, DeBoer, David R, Dillon, Joshua S, Ewall-Wice, Aaron, Fadana, Gcobisa, Fagnoni, Nicolas, Fritz, Randall, Furlanetto, Steve R, Glendenning, Brian, Greig, Bradley, Grobbelaar, Jasper, Hazelton, Bryna J, Hewitt, Jacqueline N, Hickish, Jack, Jacobs, Daniel C, Julius, Austin, Kariseb, MacCalvin, Kohn, Saul A, Lekalake, Telalo, Liu, Adrian, Loots, Anita, MacMahon, David, Malan, Lourence, Malgas, Cresshim, Maree, Matthys, Martinot, Zachary, Mathison, Nathan, Matsetela, Eunice, Mesinger, Andrei, Morales, Miguel F, Neben, Abraham R, Parsons, Aaron R, Patra, Nipanjana, Pieterse, Samantha, Pober, Jonathan C, Razavi-Ghods, Nima, Ringuette, Jon, Robnett, James, Rosie, Kathryn, Sell, Raddwine, Smith, Craig, Syce, Angelo, Tegmark, Max, Thyagarajan, Nithyanandan, Williams, Peter K. G, Zheng, Haoxuan   +54 more
core   +3 more sources

Narrowband photoreceiver for analog radio-over-fiber in the 24.25-29.5 GHZ band [PDF]

45th European Conference on Optical Communication (ECOC 2019), 2019
The presented narrowband photoreceiver, optimized for a 27.5-29.5 GHz Analog-RoF link, is based on a 3-stage GaAs narrowband low noise amplifier which offers 24.4-dB gain, 2.1-dB noise figure and 26.6-dBm OIP3. An rms-EVM of 2.46/3.47% is achieved for 100/400-MBaud 16-QAM over the 24.25-29.5 GHz band.
Bogaert, L., Haolin Li, , Van Gasse, K., Van Kerrebrouck, J., Bauwelinck, J., Roelkens, G., Torfs, G.   +6 more
openaire   +2 more sources

Maximum RF Input Signal on the Electro-Optic Modulator Transmission Boundary Area for Harmonic Distortion Compensation in Analog Radio Over Fiber

IEEE Access, 2022
In this study, we perform an analytical investigation of the electro-optic (EO), Mach-Zehnder modulator (MZM) transmission boundary area with a nonlinear model.
Yus Natali, Purnomo Sidi Priambodo, Eko Tjipto Rahardjo   +2 more
doaj   +1 more source

Power-over-Fiber Co-Transmission with Analog Radio-over-Fiber over a Single Standard Single-Mode Fiber

Photonics
To enable mains-free wireless access in confined environments such as tunnels and mines, this paper proposes and experimentally demonstrates a converged power-over-fiber (PoF) and analog radio-over-fiber (A-RoF) system over a single standard single-mode ...
Guangxin Li, Zhiguo Zhang, Rui Zhou, Xueliang Gu, Tong Zhai   +4 more
doaj   +1 more source

The Allen Telescope Array: The First Widefield, Panchromatic, Snapshot Radio Camera for Radio Astronomy and SETI [PDF]

, 2009
The first 42 elements of the Allen Telescope Array (ATA-42) are beginning to deliver data at the Hat Creek Radio Observatory in Northern California. Scientists and engineers are actively exploiting all of the flexibility designed into this innovative ...
Ackermann, Robert, Atkinson, Shannon, Backer, Don, Backus, Peter, Barott, William, Blitz, Leo, Bock, Douglas C.-J., Bower, Geoffrey C., Bradford, Tucker, Cheng, Calvin, Cork, Chris, Croft, Steve, Davis, Michael, DeBoer, Dave, Dexter, Matt, Dreher, John, Engargiola, Greg, Fields, Ed, Fleming, Matt, Forster, James, Gutierrez-Kraybill, Colby, Harp, Gerry, Heiles, Carl, Helfer, Tamara, Jordan, Jane, Jorgensen, Susanne, Keating, Garrett, Kilsdonk, Tom, Lugten, John, MacMahon, Dave, Milgrome, Oren, Pierson, Tom, Randall, Karen, Ross, John, Shostak, Seth, Tarter, Jill, Thornton, Douglas, Urry, Lynn, van Leeuwen, Joeri, Vitouchkine, Artyom, Wadefalk, Niklas, Weinreb, Sander, Welch, Jack, Wertheimer, Dan, Williams, Peter H., Wright, Melvin   +45 more
core   +2 more sources

Ultra-Wideband Radio-Over-Optical Fiber Concepts, Technologies and Applications

IEEE Photonics Journal, 2010
We have developed novel ultra-wideband (UWB) radio-over-optical-fiber (UROOF) concepts and technologies for a number of important in-house applications characterized by a high data rate.
M. Ran, B. I. Lembrikov, Y. Ben Ezra
doaj   +1 more source