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相关论文: Impact of RF I/Q Imbalance on Interference-Limited…

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Atmospheric propagation effects at millimeter wavelengths can significantly alter the phases of radio signals and reduce the coherence time, putting tight constraints on high frequency Very Long Baseline Interferometry (VLBI) observations.…

The practical limitations and challenges of radio frequency (RF) based communication networks have become increasingly apparent over the past decade, leading researchers to seek new hybrid communication approaches. One promising strategy…

网络与互联网体系结构 · 计算机科学 2017-06-22 Osama Awwad , Ala Al-Fuqaha , Bilal Khan , Ghassen Ben Brahim

With the goal of enabling ultrareliable and low-latency wireless communications for industrial internet of things (IIoT), this paper studies the use of energy-based modulations in noncoherent massive single-input multiple-output (SIMO)…

信息论 · 计算机科学 2024-06-19 Marc Vilà-Insa , Aniol Martí , Jaume Riba , Meritxell Lamarca

Hybrid free space optical (FSO)/radio frequency (RF) systems have been proved to be reliable links for high-data-rate wireless backhauls. In this paper, we present a unified performance analysis of the hybrid FSO/RF transmission system…

信号处理 · 电气工程与系统科学 2020-12-30 Long Huang , Siming Liu , Pan Dai , Mi Li , Gee-Kung Chang , Yuechun Shi , Xiangfei Chen

Using Wilson's numerical renormalization group (NRG) technique we compute zero-bias conductance and various correlation functions of a double quantum dot (DQD) system. We present different regimes within a phase diagram of the DQD system.…

强关联电子 · 物理学 2007-06-01 Rok Zitko Janez Bonca

The performance of all-optical dual-hop relayed free-space optical communication systems is analytically studied and evaluated. We consider the case when the total received signal undergoes turbulence-induced channel fading, modeled by the…

信息论 · 计算机科学 2018-10-18 Nikolaos I. Miridakis , Dimitrios D. Vergados , Angelos Michalas

In this paper, we investigate the system outage probability of a simultaneous wireless information and power transfer (SWIPT) based two-way amplify-and-forward (AF) relay network considering transceiver hardware impairments (HIs), where the…

信息论 · 计算机科学 2020-10-12 Zhipeng Liu , Guangyue Lu , Yinghui Ye , Xiaoli Chu

This paper analyzes Type I hybrid automatic repeat request (HARQ) over time-correlated Rayleigh fading channels. Due to the presence of channel time correlation, the analysis is more challenging than the prior analysis in the literature.…

信息论 · 计算机科学 2022-09-27 Zheng Shi , Shaodan Ma , Kam-Weng Tam

Self-phase modulation induced nonlinear phase noise is reduced with the increase of fiber dispersion but intrachannel four-wave-mixing (IFWM) is increased with dispersion. Both degrading DPSK signals, the standard deviation of nonlinear…

光学 · 物理学 2013-01-15 Keang-Po Ho , Hsi-Cheng Wang

In this paper, we investigate an open topic of a multiuser single-input-multiple-output (SIMO) generalized frequency division multiplexing (GFDM) system in the presence of carrier frequency offsets (CFOs) and in-phase/quadrature-phase (IQ)…

信号处理 · 电气工程与系统科学 2020-10-15 Yujie Liu , Xu Zhu , Eng Gee Lim , Yufei Jiang , Yi Huang

Performance of Free Space Optical (FSO) communication system is affected by atmospheric turbulences and pointing errors. These effects can easily be mitigated by adapting natural system parameters such as wavelength. In this paper,…

信号处理 · 电气工程与系统科学 2019-02-27 Mohammad Ali Amirabadi

This paper investigates the impact of spatial channel correlation on the outage probability of intelligent reflecting surface (IRS)-assisted single-input single-output (SISO) communication systems. In particular, we derive a novel…

In this work, a hybrid free-space optics (FSO)/ teraHertz (THz) based backhaul network is considered to provide high-data rate reliable communication to the terrestrial mobile users (MUs) operating at millimeter wave (mmWave) bands. The FSO…

信号处理 · 电气工程与系统科学 2022-11-14 Praveen Kumar Singya , Behrooz Makki , Antonio D'Errico , Mohamed-Slim Alouini

Radio-frequency (RF) impairments, that exist intimately in wireless communications systems, can severely degrade the performance of traditional multiple-input multiple-output (MIMO) systems. Although compensation schemes can cancel out part…

信息论 · 计算机科学 2014-06-17 Xinlin Zhang , Michail Matthaiou , Mikael Coldrey , Emil Björnson

In this paper, the performance of a dual-hop relaying terahertz (THz) wireless communication system is investigated. In particular, the behaviors of the two THz hops are determined by three factors, which are the deterministic path loss,…

信息论 · 计算机科学 2021-07-29 Sai Li , Liang Yang

Hardware impairments, such as phase noise, quantization errors, non-linearities, and noise amplification, have baneful effects on wireless communications. In this paper, we investigate the effect of hardware impairments on multipair massive…

信息论 · 计算机科学 2017-08-03 Ying Liu , Xipeng Xue , Jiayi Zhang , Xu Li , Linglong Dai , Shi Jin

Due to their ability to dynamically control the propagation environment, reconfigurable intelligent surfaces (RISs) offer a promising solution to address the challenges of $6$G wireless communication, especially in the context of Internet…

信息论 · 计算机科学 2025-09-22 Anika Tabassum Biva , Md. Ibrahim , A. S. M. Badrudduza , Imran Shafique Ansari

Hybrid radio frequency (RF)/free space optical (FSO) systems are among the candidate enabling technologies for the next generation of wireless networks since they benefit from both the high data rates of the FSO subsystem and the high…

信息论 · 计算机科学 2016-08-10 Marzieh Najafi , Vahid Jamali , Robert Schober

This paper considers a dual-hop amplify-and-forward (AF) relaying system where the relay is equipped with multiple antennas, while the source and the destination are equipped with a single antenna. Assuming that the relay is subjected to…

信息论 · 计算机科学 2014-01-07 Guangxu Zhu , Caijun Zhong , Himal A. Suraweera , Zhaoyang Zhang , Chau Yuen

Inductively coupled resonant circuits are affected by the so-called frequency splitting phenomenon at short distances. In the area of power electronics, tracking of one of the peak frequencies is state-of-the-art. In the data transmission…

信号处理 · 电气工程与系统科学 2020-04-13 Peter A. Hoeher