Results 61 to 70 of about 8,747,987 (147)

Overcoming the rate-power trade-off: multi-junction photovoltaic receivers for efficient near-infrared power and gigabit data transmission

npj Wireless Technology
—Photonic power converters are promising receivers for simultaneous optical wireless information and power transfer systems. Fundamental trade-offs between generated power and data transmission speed, however, have constrained device performance.
Carmine Pellegrino, Richard Nacke, Behnaz Majlesein, Othman Younus, Isaac N. O. Osahon, Sina Babadi, Michael Schachtner, Gerald Siefer, David Lackner, Iman Tavakkolnia, Harald Haas, Henning Helmers   +11 more
doaj   +1 more source

An Overview of Indoor OFDM/DMT Optical Wireless Communication Systems [PDF]

, 2010
This paper is an overview of indoor OFDM (orthogonal frequency division multiplexing)/DMT (discrete multitone) optical wireless (OW) communication systems. Indoor OW OFDM/DMT systems can be classified into two groups.
Elgala, Hany, Mesleh, Raed, Mehmood, Rashid, Haas, Harald   +3 more
core  

Adaptive transmission power control scheme for wireless sensor networks [PDF]

, 2011
Wireless communication is the major energy consumer compared to computation and sensing operations performed by a battery-powered wireless sensor node.
Dixon, M.W., Daabaj, K., Koziniec, T.
core  

Joint distribution of polarization-multiplexed UWB and WiMAX radio in PON [PDF]

, 2009
In this paper, the feasibility of the joint distribution of ultra-wideband (UWB) and WIMAX wireless using polarization multiplexing as a coexistence technique is proposed and experimentally demonstrated within the framework of passive optical networks ...
Roberto Llorente, Martí Sendra, Javier, Marti, Javier, Morant, Maria, Llorente, Roberto, Perez, Joaquin, Maria Morant, Perez Soler, Joaquin   +7 more
core   +1 more source

200 Gb/s FSO WDM Communication System Empowered by Multiwavelength Directly Modulated TOSA for 5G Wireless Networks

IEEE Photonics Journal, 2018
In this paper, a 200-Gb/s free-space optical (FSO) wavelength division multiplexing (WDM) transmission architecture based on multiwavelength directly modulated transmitter optical sub-assemblies for 5G wireless networks has been proposed and ...
Zeping Zhao, Zhike Zhang, Jun Tan, Yu Liu, Jianguo Liu   +4 more
doaj   +1 more source

A comprehensive review of wireless power transfer methods, applications, and challenges

Engineering Reports
Wireless power transfer (WPT) is a promising technology that has the potential to revolutionize the present methods of power transmission. This paper aims to provide an overview of WPT, including its history, a comparative review of methods, and a review
Md Mahidur Rahman, Md Shahariar Islam Shanto, Nayan Sarker, Tithi Rani, Liton Chandra Paul   +4 more
doaj   +1 more source

Performance Analysis of Optical Wireless Channel Based on Beamforming Techniques Using Advanced Modulation Schemes

Tikrit Journal of Engineering Sciences
The need for a very high data rate in the next-generation wireless network is growing, and optical wireless communication has become one of the best options for addressing this important problem. The optical system endures power and bandwidth losses due
Lwaa Faisal Abdulameer, Adil Fadhil Mushatet, Tania Tariq Salim   +2 more
doaj   +1 more source

Coherent Radio-Over-Fiber and Millimeter-Wave Radio Seamless Transmission System for Resilient Access Networks

IEEE Photonics Journal, 2012
We propose a millimeter-wave (MMW) coherent radio-over-fiber (RoF) transmission system for application to an access network with a direct broadband last-mile wireless connection to an optical fiber network.
A. Kanno, P. T. Dat, T. Kuri, I. Hosako, T. Kawanishi, Y. Yoshida, Y. Yasumura, K. Kitayama   +7 more
doaj   +1 more source

Optical Wireless Data and Power Transfer for In‐Body Electronic Devices: A Proof‐of‐Concept Study Using Ex Vivo Porcine Samples

IET Optoelectronics
This study presents a proof‐of‐concept system for the joint wireless transfer of data and power to in‐body electronic devices (IEDs) using near‐infrared (NIR) light technology.
Syifaul Fuada, Mariella Särestöniemi, Marcos Katz   +2 more
doaj   +1 more source

Demonstration of 50 Gbps Long-Haul D-Band Radio-over-Fiber System with 2D-Convolutional Neural Network Equalizer for Joint Phase Noise and Nonlinearity Mitigation

Sensors
High demand for 6G wireless has made photonics-aided D-band (110–170 GHz) communication a research priority. Photonics-aided technology integrates optical and wireless communications to boost spectral efficiency and transmission distance.
Yachen Jiang, Sicong Xu, Qihang Wang, Jie Zhang, Jingtao Ge, Jingwen Lin, Yuan Ma, Siqi Wang, Zhihang Ou, Wen Zhou   +9 more
doaj   +1 more source