Results 21 to 30 of about 10,809 (212)

Reordered Exponential Golomb Error Correction Code for Universal Near-Capacity Joint Source-Channel Coding

IEEE Access, 2023
Joint Source-Channel Coding (JSCC) is a powerful technique that allows for the efficient transmission of information by simultaneously considering the characteristics of both the source and the channel.
Alexander Hamilton, Mohammed El-Hajjar, Robert G. Maunder   +2 more
doaj   +1 more source

RESEARCH ON UNDERWATER COMMUNICATION AND SIMULATED ASSESSMENT OF MAIN PARAMETERS

Tạp chí Khoa học Đại học Đà Lạt, 2018
Underwater communication and its applications is a research field that has been developing rapidly, extending in many fields such as remote control in the offshore oil industry, calculating environmental pollution, transmitting voices between frogmen ...
Phan Thanh Minh, Nguyễn Ngọc Bình
doaj   +1 more source

Simulasi Pengaruh Phase Noise pada Kinerja Sistem Komunikasi Nirkabel Orthogonal Frequency Division Multiplexing (OFDM)

Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2016
Orthogonal Frequency Division Multiplexing (OFDM) merupakan salah satu alternatif terbaik dalam mengurangi pengaruh lintas jamak pada komunikasi bergerak.
Ali Mustofa, Wahju Adi Priyono
doaj   +1 more source

OFDM Network Optimization Using a QPSK Based on a Wind-Driven Genetic Algorithm

Sensors, 2022
Quadrature phase shift keying (QPSK) is a digital modulation technique that transmits data at a constant frequency whilst varying the phases of the carrier signal.
Yanxia Sun, Chikomborero Shambare, OdunAyo Imoru   +2 more
doaj   +1 more source

Improvement of signal detection based on using machine learning [PDF]

Engineering and Technology Journal
During the communication system development over the years, detecting and identifying the signal from the affected noise had the major role and the most attention from the researchers.
Bassam Abd
doaj   +1 more source

Correlation scheme of frame synchronization in communication systems with QPSK-modulation

Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2017
The information efficiency of communication systems using quadrature amplitude modulation is reduced because of the costs for data transmission necessary to provide frame synchronization and the required time to search for the sync signal and to go into ...
A. V. Sadchenko, O. A. Kushnirenko, O. I. Yefimov, V. V. Punko, S. Y. Parovyi   +4 more
doaj   +1 more source

DP-QPSK transmitter unit.

, 2022
DP-QPSK transmitter unit.
Lunchakorn Wuttisittikulkij (9707288), Demostenes Zegarra Rodriguez (11707659), Jamel Nebhen (11603976), Santosh Kumar (106550), Abhishek Sharma (144862), Sushank Chaudhary (11707650)   +5 more
core   +1 more source

Is PS-QPSK really an alternative to PDM-QPSK?

, 2022
S.41-46In this contribution, we compare the performance of polarization-division multiplexing (PDM) quadrature phase-shift keying (QPSK) signals and polarization-switched (PS) QPSK signals in single-channel and wavelength-division multiplexing (WDM ...
Molle, L., Fischer, J.K., Schmidt-Langhorst, C., Nölle, M., Schubert, C.   +4 more
core   +1 more source

Optical likelihood calculation for quadrature phase‐shift keying signal based on silicon integrated waveguide

IET Optoelectronics, 2022
All‐optical likelihood calculation has the potential to improve the performance of operating speed and power consumption in future communication systems.
Yohei Aikawa
doaj   +1 more source

Faster-Than-Nyquist 400 G Implementation Using 126-GBaud QPSK-OFDM With 88-GSa/s Undersampling

Frontiers in Physics, 2021
In this study, we demonstrated generation and transmission of 114 Gbaud and 126 Gbaud faster-than-Nyquist (FTN) discrete Fourier transform-spread (DFT-spread) quadrature phase shift keying orthogonal frequency division multiplexing (QPSK-OFDM) with 88 ...
Peng Liu, Hongxian Chen, Weihao Ni, Fan Li   +3 more
doaj   +1 more source