Results 11 to 20 of about 88,440,494 (161)

Base station beamforming technique using multiple signal-to-interference plus noise ratio balancing criteria

open access: yes, 2022
S.248-259The authors propose a coordinated multi-cell beamforming technique for signal-to-interference plus noise ratio (SINR) balancing under multiple base station power constraints. Instead of balancing SINR of all users in all cells to the same level,
Lambotharan, S.   +4 more
core   +1 more source

GLRT-Based Direction Detectors in Homogeneous Noise and Subspace Interference [PDF]

open access: yes, 2007
In this paper, we derive and assess decision schemes to discriminate, resorting to an array of sensors, between the H0 hypothesis that data under test contain disturbance only (i.e., noise plus interference) and the H1 hypothesis that they also contain ...
Ricci, Giuseppe   +12 more
core   +2 more sources

Direction detector for distributed targets in unknown noise and interference [PDF]

open access: yes, 2013
Adaptive detection of distributed radar targets in homogeneous Gaussian noise plus subspace interference is addressed. It is assumed that the actual steering vectors lie along a fixed and unknown direction of a preassigned and known subspace, while ...
Bandiera, Francesco   +3 more
core   +1 more source

Performance analysis of beamformers using generalized loading of the covariance matrix in the presence of random steering vector errors [PDF]

open access: yes, 2005
Robust adaptive beamforming is a key issue in array applications where there exist uncertainties about the steering vector of interest. Diagonal loading is one of the most popular techniques to improve robustness.
Besson, Olivier, Vincent, François
core   +1 more source

Fractional fourier transform based monopulse radar for combating jamming interference [PDF]

open access: yes, 2010
Monopulse radars are used to track a target that appears in the look direction beam width. The distortion produced when manmade high power interference (jamming).
Elgamel, Sherif A.E.H., Soraghan, J.J.
core   +4 more sources

Analysis of the performance of adaptive arrays with autual coupling compensation

open access: yesTongxin xuebao, 2007
The performance of adaptive arrays with mutual coupling compensation was analyzed in detail.It was indicated that the adaptive array was able to suppress interference thoroughly.The output power of noise,however,was influenced by the direction of beam ...
LI Rong-feng 1   +3 more
doaj   +2 more sources

Deep neural network design with SLNR and SINR criterions for downlink power allocation in multi-cell multi-user massive MIMO systems

open access: yesICT Express, 2023
In this paper, we propose a deep learning approach for solving power allocation problems in massive MIMO networks. We use signal-to-interference-plus-noise-ratio (SINR) and signal-to-leak-plus-noise ratio (SLNR) criteria for linear precoder design to ...
Ridho Hendra Yoga Perdana   +2 more
doaj   +1 more source

Low‐Complexity Hybrid Beamforming for LEO Satellites: Beam Update Rate Analysis and Advanced Adaptive Precoding

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Low Earth Orbit (LEO) satellite constellations offer unprecedented opportunities for global broadband connectivity but pose significant beamforming challenges due to rapid platform motion and stringent onboard hardware constraints. Fully digital architectures, while optimal in theory, remain impractical for satellite payloads, motivating ...
Mohammad Momani   +2 more
wiley   +1 more source

SINR performance analysis of DFT spread generalized multi-carrier system

open access: yesTongxin xuebao, 2008
A signal-to-interference-plus-noise ratio(SINR) performance analysis method of discrete fourier transform spread generalized multi-carrier(DFT-S-GMC) system was proposed.The closed-form SINR expression based on simpli-fied frequency-domain equivalent ...
RUI Yun1   +5 more
doaj   +2 more sources

Radio‐Frequency Front‐End‐Free Hybrid Code‐Division and Space‐Division Wireless Multiplexing Using Space‐Time‐Coding Metasurface

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
This work constructs a radio‐frequency front‐end‐free hybrid code‐division and space‐division‐multiplexing wireless communication system built on programmable space‐time‐coding metasurfaces. Orthogonal pseudo‐random codes reliably separate overlapped multistream signals that share identical frequency, time, and spatial resources.
Yuzhen Chen   +3 more
wiley   +1 more source

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