Results 11 to 20 of about 1,149,379 (214)
Deep Learning for Improving Performance of OOK Modulation Over FSO Turbulent Channels
IEEE Access, 2020 Free space optical (FSO) communication technology has become increasingly advanced with capabilities of high speed, high capacity, and low power consumption.
Laialy Darwesh, Natan S. Kopeika
doaj +2 more sources
A SiPM-Based VLC Receiver for Gigabit Communication Using OOK Modulation
IEEE Photonics Technology Letters, 2020 The growing demand for wireless communications services means that RF systems are increasingly unable to support user’s requirement. Consequently, there is a growing interest in using visible light communication (VLC), including interest in sensitive VLC receivers. Since they have the potential to detect single photons, silicon photomultipliers (SiPMs)
Zubair Ahmed +5 more
openaire +3 more sources
Efficient On-Off Keying Underwater Acoustic Communication for Seafloor Observation Networks
Applied Sciences, 2020 In the cableless seafloor observation networks (SONs), the links among network nodes rely on underwater acoustic communication (UAC). Due to the energy constraint and the high-reliability requirement of the cableless SONs, the noncoherent UAC has been a ...
Yan Yao +4 more
doaj +1 more source
An Energy Efficient Modulation Scheme for Body-Centric Terahertz (THz) Nanonetworks
Technologies, 2019 In body-centric communications, energy efficiency is a critical performance metric, while the achievable data rate is not of primary concern. In this paper we present a novel modulation scheme, which can be efficiently used in body-centric terahertz (THz)
Apostolos K. Vavouris +5 more
doaj +1 more source
ICT Express, 2022 In this letter, a new nanocommunication modulation scheme termed multi-level pulse position modulation (ML-PPM) is proposed. The ML-PPM approach will boost the link capacity of a nanocommunication system while achieving a processing gain in reception ...
Pankaj Singh, Sung-Yoon Jung
doaj +1 more source
Combining OOK with PSM Modulation for Simple Transceiver of Orthogonal Pulse-Based TH-UWB Systems
EURASIP Journal on Wireless Communications and Networking, 2008 This paper describes a combined modulation scheme for time-hopping ultra-wideband (TH-UWB) radio systems by using on-off keying (OOK) and pulse-shape modulation (PSM). A set of orthogonal pulses is used to represent bits in a symbol.
Paul Richardson +3 more
doaj +2 more sources
IEEE Photonics Journal, 2009 The transmission performance of a free-space optical (FSO) link could be severely degraded due to atmospheric turbulence, which causes the temporal and spatial fluctuation of light intensity.
Zixiong Wang +3 more
doaj +1 more source
Photonics, 2022 Directly modulated 850-nm multimode vertical-cavity surface-emitting lasers (MM-VCSELs) with different oxide apertures and transmission microstrip lengths are compared on the transmission performance of the non-return-to-zero on-off keying (NRZ-OOK) and ...
Jui-Hung Weng +7 more
doaj +1 more source
Optics Express, 2023 Due to narrow bandwidth and slow yellow light, it is difficult for visible light communication (VLC) systems based on high-power phosphor-coated light-emitting diodes (LEDs) to support high data rates.
Yufeng Wang, Xiongbin Chen, Yiwu Xu
semanticscholar +1 more source
OOK-Assisted Adaptive Equalization and Timing Recovery for PAM4 Demodulation
IEEE Photonics Journal, 2018 In this paper, an OOK-assisted symbol timing recovery and adaptive equalization mechanism is proposed to facilitate the four-level pulse amplitude modulation (PAM4) signal demodulation.
Zhengxuan Li +5 more
doaj +1 more source