Results 21 to 30 of about 459,320 (213)
IEEE Open Journal of the Communications Society, 2022 In this paper, we develop a unified theoretical framework for analyzing the outage performance of reconfigurable intelligent surfaces (RISs)-assisted communication systems over generalized fading channels and in the presence of phase noise.
Imene Trigui +3 more
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Estimation of Phase Noise in Oscillators with Colored Noise Sources [PDF]
IEEE Communications Letters, 2013 In this letter we study the design of algorithms for estimation of phase noise (PN) with colored noise sources. A soft-input maximum a posteriori PN estimator and a modified soft-input extended Kalman smoother are proposed. The performance of the proposed algorithms are compared against those studied in the literature, in terms of mean square error of ...
Mohammad Reza Khanzadi +2 more
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The Effect of Phase Noise in OCDM
GLOBECOM 2023 - 2023 IEEE Global Communications Conference, 2023 With the rollout of 5G wireless networks and its disruption of various markets, researchers have already started to envision 6G communication. The next-generation communication is expected to provide very high data rate with high reliability, even at severe time and frequency selective wireless channels.
Abdur Rahman Mohamed Ismail +3 more
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Asymptotic stochastic characterization of phase and amplitude noise in free-running oscillators [PDF]
, 2011 Starting from the definition of the stochastic differential equation for amplitude and phase fluctuations of an oscillator described by an ordinary differential equation, we study the associated Fokker–Planck equation by using tools from stochastic ...
Bonani, Fabrizio +3 more
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Performance evaluation of carrier interferometry implementations of MC-CDMA over a wideband channel suffering phase noise [PDF]
, 2005 In this paper the performance of Carrier Interferometry (CI) and Pseudo-Orthogonal Carrier Interferometry (PO-CI) [1] implementations of Multi-Carrier Code Division Multiple Access (MC-CDMA) are investigated.
Taylor, N +3 more
core +1 more source
Design and Implementation of an N-type Integer Phase-locked Loop with Low Phase Noise and Two Output Frequencies at 1 and 4 GHz [PDF]
International Journal of Industrial Electronics, Control and OptimizationThis article presents development and implementation of an integer N-type Phase Locked Loop (PLL) module with two output frequencies of 1 and 4 GHz, each having a phase noise better than -110dBC/Hz@10k. The structure has 0 and 10dBm power levels at 1 and
Hamid Kazemi Karyani +1 more
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Influence of local oscillator phase noise on noise figure of wideband receiver
Dianzi Jishu Yingyong, 2020 Based on the analysis of the influence of wide-band local oscillator with different phase noise on the received noise figure of the wideband receiver, a wideband mixer is used to actually test to obtain the phase noise of the mixer IF signal, through the
Li Xiaqin
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Sensors, 2021 The low-level radio frequency (LLRF) control system is one of the fundamental parts of a particle accelerator, ensuring the stability of the electro-magnetic (EM) field inside the resonant cavities. It leverages on the precise measurement of the field by
Tomasz Kowalski +7 more
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Applied Sciences, 2023 The frequency synthesizer plays a crucial role in atomic clock technology. In this study, we demonstrate a direct microwave frequency synthesizer for a cesium atomic clock, employing frequency multiplication and a dual-phase-locked loop mode.
Guangkun Guo +5 more
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Quantum phase slip noise [PDF]
Physical Review B, 2016 Quantum phase slips (QPS) generate voltage fluctuations in superconducting nanowires. Employing Keldysh technique and making use of the phase-charge duality arguments we develop a theory of QPS-induced voltage noise in such nanowires. We demonstrate that quantum tunneling of the magnetic flux quanta across the wire yields quantum shot noise which obeys
Semenov, Andrew G., Zaikin, Andrei D.
openaire +3 more sources