Results 1 to 10 of about 57,732 (152)

Optimal power allocation in spatial MIMO channel using heuristic algorithms

Majlesi Journal of Electrical Engineering
The topic of power allocation in MIMO systems for wireless communication in order to reach high capacity or low bit error rate has gained some attention.
Javad Zeraatkar Moghaddam, Hamid Farrokhi   +1 more
doaj  

L1-Norm Tucker Tensor Decomposition

IEEE Access, 2019
Tucker decomposition is a standard multi-way generalization of Principal-Component Analysis (PCA), appropriate for processing tensor data. Similar to PCA, Tucker decomposition has been shown to be sensitive against faulty data, due to its L2-norm-based ...
Dimitris G. Chachlakis, Ashley Prater-Bennette, Panos P. Markopoulos   +2 more
doaj   +1 more source

Generalized Queue-Aware Resource Management and Scheduling for Wireless Communications

IEEE Access, 2015
The general problem of a queue-aware radio resource management and scheduling design is investigated for wireless communications under quasi-static fading channel conditions.
Ning Wang, Chen He, T. Aaron Gulliver, Vijay K. Bhargava   +3 more
doaj   +1 more source

Low-Complexity SAOR and Conjugate Gradient Accelerated SAOR Based Signal Detectors for Massive MIMO Systems

Applied System Innovation
A major challenge for massive multiple-input multiple-output (MIMO) technology is designing an efficient signal detector. The conventional linear minimum mean square error (MMSE) detector is capable of achieving good performance in large antenna systems ...
Imran A. Khoso, Mazhar Ali, Muhammad Nauman Irshad, Sushank Chaudhary, Pisit Vanichchanunt, Lunchakorn Wuttisittikulkij   +5 more
doaj   +1 more source

An Analysis of the Computational Complexity and Efficiency of Various Algorithms for Solving a Nonlinear Model of Radon Volumetric Activity with a Fractional Derivative of a Variable Order

Computation
The article presents a study of the computational complexity and efficiency of various parallel algorithms that implement the numerical solution of the equation in the hereditary α(t)-model of radon volumetric activity (RVA) in a storage chamber.
Dmitrii Tverdyi
doaj   +1 more source

An Algorithm Architecture for Radio Interferometric Data Processing

The Astronomical Journal
We present a foundational, scalable algorithm architecture for processing data from aperture synthesis radio telescopes. The analysis leading to the architecture is rooted in the theory of aperture synthesis, signal processing, and numerical optimization,
S. Bhatnagar, U. Rau, M. Hsieh, J. Kern, R. Xue   +4 more
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Sum-rate optimization methods and analysis for reconfigurable intelligent surface aided communication system

Digital Communications and Networks
When deploying Reconfigurable Intelligent Surface (RIS) to improve System Sum-Rate (SSR), the timeliness and accuracy of SSR optimization methods are difficult to achieve simultaneously through a single algorithm.
Jinfeng Li, Xiaorong Zhu
doaj   +1 more source

Channel Estimation and Symbol Detection for UAV-RIS Assisted IoT Systems via Tensor Decomposition

IEEE Access
Utilizing unmanned aerial vehicle (UAV) technology in communication holds promise for meeting the increasing data rate demands in future wireless systems due to its flexibility.
Meifeng Li, Xin Luo, Weiwei Jia, Sitong Wang   +3 more
doaj   +1 more source

METHODS OF SOLVING OPERATOR EIGENPROBLEMS IN PARALLEL DISTRIBUTED MEMORY SYSTEMS AS APPLIED IN ELECTROMAGNETICS

TASK Quarterly, 1998
This study presents numerical methods of solving operator eigenproblems, focusing on their applications in electromagnetics. The discussion concentrates on the analysis of new iterative algorithms or modifications of the existing ones, which are capable
MICHAŁ REWIEŃSKI
doaj  

Detection of exercising ectopic atrial and ventricular beats using non-linear analysis of clinically normal racehorse electrocardiograms at rest or low-intensity exercise

Scientific Reports
Cardiac arrhythmias are common in healthy athletic horses and may lead to poor athletic performance or exercise-associated sudden death. Early detection of high-risk horses is an important goal of cardiovascular diagnostics.
Vadim Alexeenko, Hamid Tavanaeimanesh, Freya Stein, Jenifer Gold, Lauren Hughes, Molly McCue, Celia Marr, Sian Durward-Akhurst, Kamalan Jeevaratnam   +8 more
doaj   +1 more source