Results 71 to 80 of about 2,608 (229)
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 +5 more
doaj +1 more source
A Comprehensive Review of Battery‐Free Energy Efficient RF and Microwave Systems
Journal of Engineering, Volume 2026, Issue 1, 2026.Battery‐free radiofrequency (RF) and microwave systems have emerged as a promising solution for enabling long‐lifetime, maintenance‐free wireless sensing and communication platforms by eliminating conventional battery dependence. These systems operate by harvesting ambient or dedicated electromagnetic energy, converting it to usable electrical power ...
Stella N. Arinze +2 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 +3 more
doaj +1 more source
Covalent Organic Frameworks for Photocatalysis
Advanced Materials, Volume 37, Issue 52, December 29, 2025.This review provides an overview of recent advances in covalent organic frameworks (COFs) for photocatalysis, focusing on sustainable energy applications like water splitting, hydrogen peroxide generation, and CO2 and N2 reduction. It discusses design principles, structure‐function relationships, challenges in COF photocatalysis, and strategies to ...
Bikash Mishra +6 more
wiley +1 more source
Enhancing FSO‐DWDM Performance Through Compensation Strategies
Engineering Reports, Volume 7, Issue 12, December 2025.This study investigates the performance of free space optics (FSO) with dense wavelength division multiplexing (DWDM) systems, focusing on the impact of channel number and compensation strategies on bit error rate (BER). Results show that post‐compensation significantly improves performance, extending the system's range from 3 to 5 km.
Ifat Rasheed +4 more
wiley +1 more source
Comparison on crosstalk tolerance of RZ-DPSK and RZ-OOK modulation format in fiber optical parametric amplifier [PDF]
, 2007 We investigated crosstalk tolerance of RZ-DPSK and RZ-OOK modulation format in OPA with 100GHz channel spacing.
Wong, KKY +5 more
core +1 more source
Adaptive modulation schemes for optical wireless communication systems [PDF]
High-speed wireless optical communication links have become more popular for personal mobile applications. This is a consequence of the increasing demand from the personal information service boom.
Zeng, Yu
core
Energy optimisation of an OOK transmitter using high-order orthogonal modulation
, 2018 International audienceIn this paper, we show that high-order orthogonal modulation can be used to optimize the power consumption of an energy efficient On-Off Keying (OOK) transmitter for short range wireless sensor applications. Our work is based on the
Peng, Yue +7 more
core +1 more source
, 2021 Nowadays, free space optics (FSO) technology is one of the emerging technologies utilized as a complementary over radio frequency wireless technology with limited spectrum bandwidth to meet the high bandwidth demand. FSO technology
Basahel, Ahmed +11 more
core +1 more source
Digitization of chaotic signal for reliable communication in non-ideal channels [PDF]
, 2008 A new method of chaotic communication system based on digitization of the chaotic signal is proposed. The digitally encoded chaotic signal is transmitted through a practical channel and recovered at the receiver.
Ghassemlooy, Zabih +7 more
core +1 more source