Results 41 to 50 of about 129,716 (164)

Partial eigenvalue assignment problem of linear control systems using orthogonality relations [PDF]

open access: yesActa Montanistica Slovaca, 2006
The partial eigenvalue assignment is the problem of reassigning a part of the open-loop spectrum of a linear system by a feedback control, leaving the rest of the spectrum invariant.
Mohamed A. Ramadan, Ehab A. El - Sayed
doaj  

Disturbance Attenuation in Finite Spectrum Assignment Controllers

open access: yesIFAC Proceedings Volumes, 1996
Two new output-feedback finite-spectrum-assignment controllers are constructed by taking advantage of two specific pseudodifferential operators: continuous time delay and the convolution operator over a sliding window. The latter is shown to improve disturbance attenuation properties of the controller with respect to 2-norm -- bounded measurement noise.
openaire   +2 more sources

Channel Borrowing with Minimal Locking (CBML) for Efficient Spectrum Utilization in Cellular Systems

open access: yesJournal of King Saud University: Engineering Sciences, 2003
In this research work, a new channel assignment technique that takes into consideration the location of the user that could be found anywhere in the cellular area is developed, simulated and compared with some bench mark techniques. The scheme is applied
Ahmad M. Mustafa, Jawad F. AI-Asad
doaj   +1 more source

Multi-objective Optimization for Resource Allocation in Elastic Optical Networks: Integrating Spectrum and Power Assignment [PDF]

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
The increasing demand for bandwidth in modern communication networks has highlighted the need for efficient and dynamic resource allocation. Elastic Optical Networks address this challenge by enabling flexible spectrum and power assignment.
Sergio A. Silva   +4 more
doaj   +2 more sources

Symmetry of the Optical Phonons in LuVO4: A Raman Study

open access: yesCrystals, 2020
A thorough analysis of the first-order vibrational spectrum of LuVO4 is presented by using polarized micro-Raman spectroscopy with special focus on the phonon modes with the weakest intensity and occasional controversial assignment. Group-theory analysis
Peter Rafailov   +4 more
doaj   +1 more source

Reliability-Aware Batch-Based Power-Efficient Spectrum Assignment in CR-MIMO UAV Networks

open access: yesIEEE Open Journal of the Communications Society
The increasing demands for high spectral efficiency, low energy consumption, flexible deployment, and stringent reliability in beyond 5G/6G systems motivate integrating unmanned aerial vehicles (UAVs) with cognitive radio (CR) and multi-antenna (MIMO ...
Haythem A. Bany Salameh   +3 more
doaj   +1 more source

Exact controllability and spectrum assignment

open access: yesJournal of Mathematical Analysis and Applications, 1984
Let (A,B) be a linear system where the state operator A is a bounded linear operator on a Hilbert space \({\mathcal H}\) and the input operator B is a bounded linear operator from a Hilbert space \({\mathcal G}\) to \({\mathcal H}\). The system (A,B) is called exactly controllable if every vector of \({\mathcal H}\) belongs to the algebraic linear span
openaire   +1 more source

A Useful Metaheuristic for Dynamic Channel Assignment in Mobile Cellular Systems

open access: yesInternational Journal of Interactive Multimedia and Artificial Intelligence, 2012
The prime objective of a Channel Assignment Problem (CAP) is to assign appropriate number of required channels to each cell in a way to achieve both efficient frequency spectrum utilization and minimization of interference effects (by satisfying a number
Deepak Kumar Singh   +2 more
doaj   +1 more source

An Efficient Partially Overlapping Channels Assignment for Smart Grid IoT With Differentiated QoS

open access: yesIEEE Access, 2019
In smart grid (SG), internet of things (IoT) has drawn much attention around the years due to increased volume of traffic. Various types of electrical devices in SG demand a differentiated quality of service (QoS).
Liang Li   +3 more
doaj   +1 more source

Current Work and Way Forward of Spectrum Requirement Estimation for the Future IMT System

open access: yesDianxin kexue, 2013
In order to satisfy the spectrum requirements of the next generation international mobile telecommunication (IMT)system,to realize scientific allocation and usage of spectrum resources and to avoid spectrum waste brought by allocation in advance,there is
Tan Wang, Biao Huang, Jing Pang
doaj   +2 more sources

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