Results 21 to 30 of about 19,295 (150)

Cognitive GFDM Full-Duplex Radios With RF Impairments and ACI Constraints

open access: yesIEEE Open Journal of the Communications Society, 2020
We investigate the problem of sum-rate maximization of a secondary link of full-duplex generalized frequency division multiplexing (GFDM) radios operating over a spectrum hole, which is surrounded by two active primary adjacent channels.
Amirhossein Mohammadian   +1 more
doaj   +1 more source

An efficient method to measure reliability of underwater acoustic communication links

open access: yesJournal of Ocean Engineering and Science, 2016
We consider the problem of evaluating the reliability of underwater acoustic communication (UWAC) systems. Reliability is a requirement for any communication system and is often defined as the probability to achieve a target bit error rate. Evaluation of
Roee Diamant, Yaakov Bucris, Arie Feuer
doaj   +1 more source

High Performance Robust Adaptive Beamforming in the Presence of Array Imperfections

open access: yesInternational Journal of Antennas and Propagation, 2016
A high performance robust beamforming scheme is proposed to combat model mismatch. Our method lies in the novel construction of interference-plus-noise (IPN) covariance matrix. The IPN covariance matrix consists of two parts.
Wenxing Li   +3 more
doaj   +1 more source

A novel adaptive beamforming scheme for array signal data processing

open access: yesEURASIP Journal on Wireless Communications and Networking, 2023
When the desired signal data exists in the array received data or the steering vector has a mismatch problem, the current traditional adaptive beamformers will suffer from the effect of the desired signal cancelation phenomenon, resulting in a sharp ...
Heping Shi   +3 more
doaj   +1 more source

Efficient joint power allocation for mitigating intracluster interference in clustered NOMA system

open access: yesETRI Journal
In recent years, the growing demand for massive connectivity has focused researchers’ attention on next-generation radio access techniques. Nonortho-gonal multiple access (NOMA) is a candidate for supporting massive connec-tivity.
Salifou Mounchili, Soumaya Hamouda
doaj   +1 more source

Joint Design of Intelligent Reflecting Surface Configuration and Precoding in MISO-VLC Systems

open access: yesPhotonics
To address the problem of insufficient user fairness in multi-user multiple-input single-output visible light communication systems, this paper proposes a joint design scheme of intelligent reflecting surface configuration and precoding to maximize the ...
Jie Ren, Xizheng Ke, Hui Li
doaj   +1 more source

Joint transceive beamforming for multistatic radar system by semi‐definite relaxation method

open access: yesIET Radar, Sonar & Navigation
The joint transmit and receive beamforming algorithm has been envisioned to optimise the target's signal‐to‐interference‐plus‐noise ratio by co‐designing the transmit and receive beamforming vectors simultaneously.
Haoran Li, Jun Geng, Junhao Xie
doaj   +1 more source

SVD-Based Technique for Interference Cancellation and Noise Reduction in NMR Measurement of Time-Dependent Magnetic Fields

open access: yesSensors, 2016
A nuclear magnetic resonance (NMR) experiment for measurement of time-dependent magnetic fields was introduced. To improve the signal-to-interference-plus-noise ratio (SINR) of NMR data, a new method for interference cancellation and noise reduction ...
Wenjun Chen, Hong Ma, De Yu, Hua Zhang
doaj   +1 more source

Minimax robust jamming techniques based on signal‐to‐interference‐plus‐noise ratio and mutual information criteria

open access: yesIET Communications, 2014
Jamming in defence applications is increasingly difficult because of advanced signal processing countermeasures. In this study, task‐dependent power‐constraint optimal jamming techniques are investigated. To prevent the target from being detected, a novel jamming technique is proposed to minimise the signal‐to‐interference‐plus‐noise ratio (SINR) of ...
Lulu Wang   +3 more
openaire   +1 more source

Self-configuration power scheme for femtocell base station

open access: yesTongxin xuebao, 2012
To solve the issue that new femtocells deployed in hierarchical networks would introduce a series of interference,a power self-configuration scheme was proposed.Various kinds of interference that femtocell base station might receive from other base ...
Peng XU   +3 more
doaj   +2 more sources

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