Results 51 to 60 of about 1,385 (151)

Fully signed quadrature space shift keying MIMO modulation

open access: yesAin Shams Engineering Journal
A novel multiple-input multiple-output (MIMO) space shift keying (SSK) modulation scheme, termed fully signed quadrature space shift keying (FSQ-SSK), is proposed in this paper.
Hany S. Hussein   +4 more
doaj   +1 more source

Demultiplexing in mode-division multiplexing system using multichannel blind deconvolution

open access: yesIEEE Photonics Journal, 2016
We propose a mode demultiplexing method based on multichannel blind deconvolution (MBD) for a mode-division multiplexing (MDM) system. A 6 $\times$ 6 MDM transmission system is simulated to verify the performance of MBD.
Li Yan, Guijun Hu
doaj   +1 more source

On rate performance of M‐ary amplitude shift keying compact ultra massive array systems for massive connectivity

open access: yesElectronics Letters
Compact ultra massive array (CUMA) is a new form of the emerging fluid antenna system where a huge number of flexible‐position antennas are selected to produce the output signal.
Kai‐Kit Wong   +2 more
doaj   +1 more source

Turbo Coded OFDM Combined with MIMO Antennas Based on Matched Interleaver for Coded-Cooperative Wireless Communication

open access: yesInformation, 2017
A turbo coded cooperative orthogonal frequency division multiplexing (OFDM) with multiple-input multiple-output (MIMO) antennas scheme is considered, and its performance over a fast Rayleigh fading channel is evaluated.
Rahim Umar, Fengfan Yang, Shoaib Mughal
doaj   +1 more source

In-Phase and Quadrature Frequency-Shift Keying for Low-Power Optical Wireless Communications

open access: yesPhysical Communication
International audience ; This article proposes using in-phase and quadrature frequency-shift keying (IQFSK) modulation for low-power optical wireless communications (OWC). IQFSK independently leverages both cosine and sine basis functions to enhance the system’s spectral efficiency (SE).
Ali Waqar Azim   +2 more
openaire   +2 more sources

Wavelength conversion of QAM signals in a low loss CMOS compatible spiral waveguide

open access: yesAPL Photonics, 2017
We demonstrate wavelength conversion of quadrature amplitude modulation (QAM) signals, including 32-GBd quadrature phase-shift keying and 10-GBd 16-QAM, in a 50-cm long high index doped glass spiral ...
Francesco Da Ros   +8 more
doaj   +1 more source

HFDNN: A Hybrid Fusion Deep Neural Network for Robust Automatic Modulation Classification in Adverse Wireless Environments

open access: yesIEEE Access
Automatic Modulation Classification (AMC) plays a vital role in modern wireless communication systems, particularly in domains such as defense, the Internet of Things (IoT), and cognitive radio, where resilience to interference is essential.
Muhammad Muneeb Tahir   +4 more
doaj   +1 more source

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