Results 1 to 10 of about 125,865 (258)

A Novel Adaptive Modulation Based on Nondata-Aided Error Vector Magnitude in Non-Line-Of-Sight Condition of Wireless Sensor Network [PDF]

open access: yesSensors, 2018
The high demand for multimedia applications in environmental monitoring, invasion detection, and disaster aid has led to the rise of wireless sensor network (WSN).
Fan Yang   +5 more
doaj   +2 more sources

Estimation of BER from Error Vector Magnitude for Optical Coherent Systems [PDF]

open access: yesPhotonics, 2016
This paper presents the estimation of bit error ratio (BER) from error vector magnitude (EVM) for M-ary quadrature amplitude modulation (QAM) formats in optical coherent systems employing carrier phase recovery with differential decoding to compensate ...
Irshaad Fatadin
doaj   +2 more sources

Error vector magnitude measurement and analysis in optical communication system

open access: yesDianxin kexue, 2016
Vector modulation format of high speed optical communication system calls for new measurement and analysis scheme.Error vector magnitude (EVM) is one of the most important parameters in vector modulation evaluation.The definition of EVM parameters,its ...
Junsen LAI   +5 more
doaj   +3 more sources

Radio frequency interface quality assessment in 4G/5G: Effects of IQ imbalance, phase noise, and nonlinearities on error vector magnitude. [PDF]

open access: yesPLoS ONE
Modern 4G/5G technologies aim to enhance data speeds, improve communication quality, and enable innovative services such as IoT and augmented reality.
Ilya Pyatin   +3 more
doaj   +2 more sources

Generalized Iterative Dichotomy PAPR Reduction Method for Multicarrier Waveforms

open access: yesIEEE Access, 2021
5th generation systems (5G) will be based on Orthogonal Frequency Division Multiplexing (OFDM) multicarrier modulation technique. This modulation has a very high Peak to Average Power Ratio (PAPR).
Khaled Tahkoubit   +4 more
doaj   +1 more source

Aerogel antennas communications study using error vector magnitude measurements [PDF]

open access: yes2014 IEEE Antennas and Propagation Society International Symposium (APSURSI), 2014
This presentation discusses an aerogel antennas communication study using error vector magnitude (EVM) measurements. The study was performed using 2x4 element polyimide (PI) aerogel-based phased arrays designed for operation at 5 GHz as transmit (Tx) and receive (Rx) antennas separated by a line of sight (LOS) distance of 8.5 meters. The results of the
Felix A. Miranda   +2 more
openaire   +1 more source

Robust Computation of Error Vector Magnitude for Wireless Standards [PDF]

open access: yesIEEE Transactions on Communications, 2013
The modulation accuracy described by an error vector magnitude is a critical parameter in modern communication systems — defined originally as a performance metric for transmitters but now also used in receiver design and for more general signal analysis.
Jensen, Tobias Lindstrøm   +1 more
openaire   +1 more source

EVM Loss: A Loss Function for Training Neural Networks in Communication Systems

open access: yesSensors, 2021
Neural networks and their application in communication systems are receiving growing attention from both academia and industry. The authors note that there is a disconnect between the typical objective functions of these neural networks with regards to ...
Scott Stainton   +3 more
doaj   +1 more source

Power limits with adjustable 10G receiver parameters for A-RoF transmission

open access: yesElektronika ir Elektrotechnika, 2023
Current paper characterizes the performance of the three-radio-frequency-channels, orthogonal-frequency-division-multiplexed (OFDM) radio-over-fiber (RoF) transmission system in terms of error-vector-magnitude and received optical signal power for a ...
Inna Kurbatska   +5 more
doaj   +1 more source

Phase Noise Effect on Millimeter-Wave Pre-5G Systems

open access: yesIEEE Access, 2020
The introduction of millimeter waves for 5G wireless communication systems enables the use of more bandwidth and higher carrier frequency, surpassing the capacity of current systems by more than one order of magnitude. The leap of millimeter band results
Jongho Oh, Tae-Kyoung Kim
doaj   +1 more source

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