Results 1 to 10 of about 463,042 (300)
Joint Coherent/Non-Coherent Detection for Distributed Massive MIMO: Enabling Cooperation Under Mixed Channel State Information [PDF]
SensorsBeyond-5G wireless systems increasingly rely on distributed massive multiple-input multiple-output (MIMO) architectures to achieve high spectral efficiency, low latency, and wide coverage.
Supuni Gunasekara +3 more
doaj +2 more sources
Experimental Study on Partially Coherent Optical Coherent Detection
PhotonicsWhen coherent detection occurs, the polarization mismatch between signal light and local oscillator light can reduce the efficiency of coherent detection.
Jingyuan Liang +3 more
doaj +2 more sources
External Modulation Optical Coherent Domain Reflectometry with Long Measurement Range
Sensors, 2021 Optical coherent domain reflectometry (OCDR) can achieve a high spatial resolution that is independent of the bandwidth of the receiver, but the measurement range is usually very limited.
Yinghong Xue +2 more
doaj +1 more source
Asymmetric self-coherent detection
Optics Express, 2021 The bandwidth upgrade required in short-reach optical communications has prompted the need for detection schemes that combine field reconstruction with a cost-effective subsystem architecture. Here we propose an asymmetric self-coherent detection (ASCD) scheme for the field reconstruction of self-coherent (SC) complex double-sideband (DSB) signals ...
Xueyang Li +5 more
openaire +2 more sources
Frontiers in Physics, 2021 The optical orthogonal frequency division multiplexing (OFDM) is proven to be a most promising technology for the next-generation high-capacity and ultra-wide bandwidth 5G communication systems.
Sunil N Thool +2 more
doaj +1 more source
On the Communication Performance of Airborne Distributed Coherent Radar
Applied Sciences, 2022 Compared with a monostatic radar, airborne distributed coherent radar (ADCR) has been widely applied thanks to its flexibility, greater degree of freedom, stronger detection, and anti-jamming ability.
Qinhao Wu +3 more
doaj +1 more source
Ambient OFDM Pilot-Aided Backscatter Communications: Concept and Design
IEEE Access, 2021 This paper investigates a backscatter communications system that exploits ambient pilot symbols used in existing standards based on orthogonal frequency-division multiplexing (OFDM), such as IEEE802.11, in order to realize ultra-low power communications ...
Takanori Hara +2 more
doaj +1 more source
Non-coherent detection for ultraviolet communications with inter-symbol interference [PDF]
, 2020 Ultraviolet communication (UVC) serves as a promising supplement to share the responsibility for the overloads in conventional wireless communication systems.
Hu, Wenxiu +5 more
core +1 more source
Coherent Detection of Electron Dephasing [PDF]
Physical Review Letters, 2010 We show that an Aharonov-Bohm (AB) ring with asymmetric electron injection can act as a coherent detector of electron dephasing. The presence of a dephasing source in one of the two arms of a moderately-to-highly asymmetric ring changes the response of the system from total reflection to complete transmission while preserving the coherence of the ...
Strambini E +6 more
openaire +8 more sources
An All-Digital Optical Phase-Locked Loop Suitable for Satellite Downlinks
Photonics, 2023 The optical signal propagation used in satellite uplinks and downlinks is influenced by absorption, scattering, and changes in the atmospheric refractive index or turbulence, causing optical signal attenuation.
Jognes Panasiewicz +4 more
doaj +1 more source