Results 41 to 50 of about 10,164 (270)

Digital Signal Processing for High‐Speed THz Communications

open access: yesChinese Journal of Electronics, Volume 31, Issue 3, Page 534-546, May 2022., 2022
The use of advanced digital signal processing (DSP) technology in the high‐speed terahertz (THz) communication can effectively compensate the linear and nonlinear effects of the system and further improve the transmission performance of the system.
Jianjun YU, Yi WEI
wiley   +1 more source

Applied constant gain amplification in circulating loop experiments [PDF]

open access: yes, 2009
The reconfiguration of channel or wavelength routes in optically transparent mesh networks can lead to deviations in channel power that may impact transmission performance.
Barry, Liam P.   +3 more
core   +1 more source

On-Chip OSNR Monitoring With Silicon Photonics Transparent Detector [PDF]

open access: yesIEEE Photonics Technology Letters, 2017
Non-invasive integrated detectors, named contactless integrated photonic probe (CLIPP), are employed to demonstrate on-chip noise-independent power monitoring of optical channels and in-band optical signal to noise ratio (OSNR) measurement. The proposed technique is based on a two-step lock-in demodulation of optical signals that are suitably labeled ...
OLIVEIRA MORAIS DE AGUIAR, DOUGLAS   +6 more
openaire   +2 more sources

Performance‐Aware Green Algorithm for Clustering of Underwater Wireless Sensor Network Based on Optical Signal‐to‐Noise Ratio

open access: yesMathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
Underwater wireless sensor network (UWSN) has limited bandwidth, long propagation delays, and unrechargeable batteries, which forces the development of techniques minimizing the energy consumption of UWSNs. One solution is clustering that outperforms in terms of energy optimization and, in addition, can also provide scalability and data reliability ...
Pooja Ashok Shelar   +5 more
wiley   +1 more source

Software‐Defined Networks for Optical Networks Using Flexible Orchestration: Advances, Challenges, and Opportunities

open access: yesJournal of Computer Networks and Communications, Volume 2022, Issue 1, 2022., 2022
Optical networks offer a wide range of benefits to the telecommunication sector worldwide with their provision of higher bandwidth, which leads to faster data speed, longer transmission distance, and improved latency. Currently, the complexity associated with advancements in optical networks poses problems to network flexibility, reliability, and ...
Kenneth Nsafoa-Yeboah   +7 more
wiley   +1 more source

OSNR Monitoring Using Support Vector Ordinal Regression for Digital Coherent Receivers

open access: yesIEEE Photonics Journal, 2019
An OSNR monitoring method assisted by support vector ordinal regression (SVOR) is proposed for digital coherent receivers. According to Godard's error of equalized signals obtained after polarization demultiplexing, the optical signal-to-noise ...
Ming Hao   +6 more
doaj   +1 more source

Electronic equalization for advanced modulation formats in dispersion-limited systems [PDF]

open access: yes, 2004
We investigate in this letter the use of electronic equalization on dispersion limited systems for different modulation formats. Besides analyzing equalization on standard NRZ intensity modulation as a reference, we focus on two advanced modulation ...
Curri, Vittorio   +3 more
core   +1 more source

Wavelength conversion for WDM communication systems using four-wavemixing in semiconductor optical amplifiers [PDF]

open access: yes, 1997
Four-wave mixing (FWM) in semiconductor optical amplifiers is an attractive mechanism for wavelength conversion in wavelength-division multiplexed (WDM) systems since it provides modulation format and bit rate transparency over wide tuning ranges.
Geraghty, David F.   +5 more
core   +1 more source

Enhanced Three-Core Three-Mode Optical Transmission System Based on Probabilistic Shaping With Low Complexity MIMO Equalization Algorithm

open access: yesIEEE Access, 2020
A novel few-mode multi-core (FMMC) optical fiber transmission system based on probabilistic shaping (PS) with low complexity multiple-input multiple-output (MIMO) equalization method is proposed and demonstrated in this paper.
Songsong Qu   +7 more
doaj   +1 more source

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