Results 91 to 100 of about 5,536 (185)

Comb-based WDM transmission at 10 Tbit/s using a DC-driven quantum-dash mode-locked laser diode

open access: yes, 2019
Chip-scale frequency comb generators have the potential to become key building blocks of compact wavelength-division multiplexing (WDM) transceivers in future metropolitan or campus-area networks.
Abderrahim Ramdane   +47 more
core   +2 more sources

Prediction of SINR using BER and EVM for Massive MIMO Applications [PDF]

open access: yes, 2018
Future communication systems employing massive multiple input multiple output will not have the ability to use channel state information at the mobile user terminals.
Brown, Tim   +3 more
core   +1 more source

Complex Block Floating-Point Format with Box Encoding For Wordlength Reduction in Communication Systems

open access: yes, 2017
We propose a new complex block floating-point format to reduce implementation complexity. The new format achieves wordlength reduction by sharing an exponent across the block of samples, and uses box encoding for the shared exponent to reduce ...
Choo, Yeong Foong   +2 more
core   +1 more source

Low-Complexity Adaptive Chromatic Dispersion Estimation Scheme Using Machine Learning for Coherent Long-Reach Passive Optical Networks

open access: yesIEEE Photonics Journal, 2019
In the coherent long-reach passive optical networks (LRPON), it is crucial to propose cost-effective digital signal processing (DSP) technologies to reduce the overall complexity and power consumption.
Jin Li, Danshi Wang, Min Zhang
doaj   +1 more source

Measurement of Error Vector Magnitude (EVM) to Characterize the Impairment of the Tracking and Data Relay Satellite (TDRS) Channel [PDF]

open access: yes
A digital signal is transmitted via a carrier wave, it demodulates at a receiver, and locates at an ideal constellation point. However, noise distortion, carrier leakage, and phase noise can force a signal to divert from its ideal position to a new ...
Kegege, Obadiah   +2 more
core   +1 more source

All-Optical Generation of Two IEEE802.11n Signals for 2 $\times$ 2 MIMO-RoF via MRR System

open access: yesIEEE Photonics Journal, 2014
A radio-over-fiber system capable of very spectrally efficient data transmission and based on multiple-input multiple-output (MIMO) and orthogonal frequency-division multiplexing (OFDM) is presented here.
I. S. Amiri   +4 more
doaj   +1 more source

Poster Session 2

open access: yes
Pregnancy, Volume 2, Issue S1, January 2026.
wiley   +1 more source

Optimized Multiplicative Pre-Distortion PAPR Reduction Scheme for OTFS Signals

open access: yesIEEE Access
We present an iterative peak-to-average power ratio (PAPR) reduction scheme with multiplicative pre-distortion vectors for orthogonal time frequency space (OTFS) systems by making a compromise between the PAPR reduction and the bit error rate (BER ...
Feiyang Liu   +2 more
doaj   +1 more source

Performance of MB-OFDM UWB and WiMAX IEEE 802.16e converged radio-over-fiber in PON [PDF]

open access: yes, 2009
Experimental results about the performance of converged radio-over- fiber transmission including multiband- OFDM UWB and WiMAX 802.16e wireless over a passive optical network are reported in this paper. The experimental study indicates that UWB and WiMAX
Beltran, Marta   +3 more
core  

Machine learning-based methods for piecewise digital predistortion in mmW 5G NR systems

open access: yesEURASIP Journal on Advances in Signal Processing
Piecewise linearization techniques require dividing the signal into multiple pieces each linearized individually. Machine learning (ML) is one of the useful tools to perform the automatic division of these pieces.
S. S. Krishna Chaitanya Bulusu   +7 more
doaj   +1 more source

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