Results 71 to 80 of about 798,880 (216)

Polarization-Insensitive Phase-Transmultiplexing and Multicasting of CSRZ-OOK and 4 $\times$ RZ-BPSK to 4 $\times$ RZ-QPSK via XPM in a Birefringent PCF

IEEE Photonics Journal, 2014
By utilizing cross-phase modulation and birefringence, we demonstrated simultaneous polarization-insensitive phase-transmultiplexing and multicasting of a single 10-Gbaud CSRZ-OOK signal and 4 $\times$ 10-Gbaud RZ-BPSK signals to generate 4 $\times$ 10-
B. M. Cannon, T. Mahmood, W. Astar, P. Boudra, T. Mohsenin, Gary M. Carter   +5 more
doaj   +1 more source

MAC Protocol Design for Optical Wireless Body‐Area Networks: Latency, Energy Efficiency and Scalability Analysis

IET Networks, Volume 15, Issue 1, January/December 2026.
This work investigates suitable MAC protocols for medical optical wireless body‐area networks (WBANs), focussing on multiple access management. Using realistic channel models, we evaluate the network performance in terms of energy efficiency, quality‐of‐service and scalability for different IEEE protocols, for both intra‐ and extra‐WBAN connectivity in
Christos Giachoudis, Mohammad‐Ali Khalighi, Stanislav Zvanovec, Vasilis K. Papanikolaou, Sotiris A. Tegos, George K. Karagiannidis   +5 more
wiley   +1 more source

An FSK and OOK Compatible RF Demodulator for Wake Up Receivers

Journal of Low Power Electronics and Applications, 2015
This work proposes a novel demodulation circuit to address the implementation of Wake-Up Receivers (Wu-Rx) in Wireless Sensor Nodes (WSN). This RF demodulator, namely Modulated Oscillator for envelOpe Detection (MOOD), is compatible with both FSK and OOK/
Thierry Taris, Hassène Kraimia, Didier Belot, Yann Deval   +3 more
doaj   +1 more source

Mid‐Infrared Free‐Space Optical Communications: Technologies, Demonstrations and Future Directions

IET Optoelectronics, Volume 20, Issue 1, January/December 2026.
Free‐space optical (FSO) communication is increasingly extending beyond the near‐infrared to the mid‐wave infrared (MWIR) and long‐wave infrared (LWIR) regions, which offer reduced turbulence, scattering and absorption for more robust links. This review summarises recent advances in MWIR/LWIR FSO technologies, including quantum cascade lasers, lithium ...
Darja Cirjulina, Zhuoyan Zhang, Abdul Hayee, Armands Ostrovskis, Richard Schatz, Hamza Dely, Yan‐Ting Sun, Toms Salgals, Sandis Spolitis, Vjaceslavs Bobrovs, Lu Zhang, Djamal Gacemi, Angela Vasanelli, Carlo Sirtori, Xianbin Yu, Oskars Ozolins, Xiaodan Pang   +16 more
wiley   +1 more source

Design and Evaluation of mmWave Backscatter Tag System for Internet of Things Applications

, 2023
The demand for Internet of Things (IoT) devices that provide wireless communication has increased significantly in recent years. RFID technology is currently one of the most widely used and prevalent technologies.
Muin, Fathul, Hariyadi, Tommi, Park, Seong-Ook   +2 more
core   +1 more source

Study on separated double pulse position modulation and its performance

Tongxin xuebao, 2009
Separated double pulse position modulation（SDPPM） in wireless ultraviolet communication was presented.The structure of the SDPPM was described in detail.Requirements of the power and the bandwidth for SDPPM were analyzed and the BER was derived.Then ...
XU Zhi-yong1, SHEN Lian-feng1, WANG Jing-yuan2, LIU Ye2   +3 more
doaj   +2 more sources

OOK Harmonic Rectifier-Modulator for Self-Aligning Wireless IoT Sensor Nodes With Uncompromised Efficiency

IEEE Access
This paper presents a harmonic based on-off keying (OOK) rectifier-modulator (HRM) for energy efficient battery-less self-aligning wireless sensor nodes.
Geonwoo Lee, Namkyung Lee, Juntaek Oh
doaj   +1 more source

THz Wireless Transmission Systems Based on Photonic Generation of Highly Pure Beat-Notes

IEEE Photonics Journal, 2016
In this paper, a terahertz (THz) wireless communication system at 400 GHz with various modulation formats [on–off keying (OOK), quadrature phase-shift keying (QPSK), 16-quadrature amplitude modulation (16-QAM), and 32-quadrature amplitude ...
Shi Jia, Xianbin Yu, Hao Hu, Jinlong Yu, Toshio Morioka, Peter U. Jepsen, Leif K. Oxenlowe   +6 more
doaj   +1 more source

Visual Cell OOK Modulation : A Case Study of MIMO CamCom

The Journal of Korean Institute of Communications and Information Sciences, 2013
Multiplexing information over parallel data channels based on RF MIMO concept is possible to achieve considerable data rates over large transmission ranges with just a single transmitting element. Visual multiplexing MIMO techniques will send independent streams of bits using the multiple elements of the light transmitter array and recording over a ...
Nam-Tuan Le, Yeong Min Jang
openaire   +2 more sources

Direct and external intensity modulation in OFDM RoF links [PDF]

, 2014
This article is available Open Access to view at: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7158985Radio-over-fiber (RoF) systems comprise light modulation and transmission of millimeter-wave signals over fiber links.
Cosmas, John P., Glover, Ian A., Lazaridis, Pavlos I., Zaharias D. Zaharis, Lazaridis, PI, Prasad, NR, Ian A. Glover, Khwandah, Sinan, Khwandah, SA, Zaharis, ZD, Zaharis, Zaharias D., Cosmas, JP, Glover, Ian, Prasad, Neeli R., John P. Cosmas, Cosmas, John, Glover, IA, Lazaridis, Pavlos, Sinan A. Khwandah, Neeli R. Prasad, Pavlos I. Lazaridis, Prasad, Neeli, Khwandah, Sinan A.   +22 more
core   +1 more source