Results 11 to 20 of about 2,608 (229)
IEEE Photonics Journal, 2012 We propose and demonstrate a flexible and high-speed impulse radio ultrawideband (IR-UWB) over fiber system using various modulation schemes. Two kinds of fully Federal Communication Commission (FCC) compliant UWB pulses are produced, which is based on ...
Pengxiao Li +3 more
doaj +2 more sources
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 +4 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
Slot error rate performance of DH-PIM with symbol retransmission for optical wireless links [PDF]
, 2009 In this paper we introduce the dual-header pulse interval modulation (DH-PIM) technique employing a simple retransmission coupled with a majority decision detection scheme at the receiver. We analytically investigate the slot error rate (SER) performance
Ghassemlooy, Zabih +5 more
core +1 more source
On-chip integratable all-optical quantizer using strong cross-phase modulation in a silicon-organic hybrid slot waveguide [PDF]
, 2016 High performance all-optical quantizer based on silicon waveguide is believed to have significant applications in photonic integratable optical communication links, optical interconnection networks, and real-time signal processing systems. In this paper,
Yuan, Jinhui +33 more
core +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
Cost efficient directly modulated DPSK downstream transmitter and colourless upstream remodulation for full-duplex WDM-PONs [PDF]
, 2010 We implement a cost efficient 10.7 Gb/s directly modulated DPSK transmitter in a bidirectional WDM-PON, which also remodulates the downstream phase encoded signal for 2.5 Gb/s OOK upstream ...
Anandarajah, Prince M. +5 more
core +1 more source
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
PWM-based PPM format for dimming control in visible light communication system [PDF]
, 2012 We report simulation results of pulse width modulation (PWM)-based pulse position modulation (PPM) signal format for visible light communication systems. For simultaneous operation of data transmission and dimming control, PPM data format is added to PWM
Jang, Hyung-Joon +7 more
core +1 more source