Results 11 to 20 of about 431,343 (238)

Hybrid Analog-Digital Precoding for Interference Exploitation [PDF]

open access: yes, 2018
We study the multi-user massive multiple-input-single-output (MISO) and focus on the downlink systems where the base station (BS) employs hybrid analog-digital precoding with low-cost 1-bit digital-to-analog converters (DACs). In this paper, we propose a
Li, Ang, Liu, Fan, Masouros, Christos
core   +2 more sources

Using Hybird Genetic Algorithm In Audio Steganography [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2013
In this paper, a proposed method for hiding secret data in audio file (.WAV) is introduced. Genetic algorithm has been hybridized with conjugate gradient algorithm which is one of the methods for solving nonlinear unconstrained minimization problem, the ...
Ban A . Mitras, Nada F. Hassan
doaj   +1 more source

A GPU-based hyperbolic SVD algorithm [PDF]

open access: yes, 2011
A one-sided Jacobi hyperbolic singular value decomposition (HSVD) algorithm, using a massively parallel graphics processing unit (GPU), is developed.
A.H. Sameh   +21 more
core   +2 more sources

Experimental research on torque characteristic and weight distribution of the polycrystalline diamond compact–roller hybrid bit

open access: yesAdvances in Mechanical Engineering, 2019
On the basis of structural features and working principle of polycrystalline diamond compact–roller hybrid drill bit, a detachable experiment device with adjustable structural parameters are designed and manufactured for the hybrid bit, and accordingly ...
Shi-wei Niu   +6 more
doaj   +1 more source

A GA-based simulation system for WMNs: comparison analysis for different number of flows, client distributions, DCF and EDCA functions [PDF]

open access: yes, 2017
In this paper, we compare the performance of Distributed Coordination Function (DCF) and Enhanced Distributed Channel Access (EDCA) for normal and uniform distributions of mesh clients considering two Wireless Mesh Network (WMN) architectures.
Barolli, Admir   +5 more
core   +2 more sources

Research Progress of M13 Bacteriophage-Based Biosensors

open access: yesNanomaterials, 2019
Recently, new virus-based sensor systems that operate on M13 bacteriophage infrastructure have attracted considerable attention. These systems can detect a range of chemicals with excellent sensitivity and selectivity.
Jong-Sik Moon   +5 more
doaj   +1 more source

Performance Analysis of Relay-Aided Hybrid FSO/RF Cooperation Communication System over the Generalized Turbulence Channels with Pointing Errors and Nakagami-m Fading Channels

open access: yesSensors, 2023
To improve the performance of fee-space optical communication systems, this paper analyzes the performance of a relay-aided hybrid fee-space optical (FSO)/radio frequency (RF) cooperation system based on a selective combination and decoding forward ...
Yan Wu, Gang Li, Dejin Kong
doaj   +1 more source

A time dependent performance model for multihop wireless networks with CBR traffic [PDF]

open access: yes, 2010
In this paper, we develop a performance modeling technique for analyzing the time varying network layer queueing behavior of multihop wireless networks with constant bit rate traffic.
Krishnamurthy, P   +4 more
core   +2 more sources

Working characteristics research on the impacting–cutting hybrid bit

open access: yesAdvances in Mechanical Engineering, 2019
In order to improve the drilling efficiency of bit drilling in poor-drillability formation, the authors of this article put forward a cutting–percussion hybrid bit, the fixed-cutting units and impact-crushing units of which are mutually independent and ...
Kuilin Huang, Zhijiu Ai, Yingxin Yang
doaj   +1 more source

Digital Predistortion of Millimeter-Wave Hybrid Beamforming Transmitters Using Observation Receivers With Low-Bit Resolution Analog-to-Digital Converter

open access: yesIEEE Access, 2021
This paper proposes a new digital predistortion (DPD) scheme for linearizing millimeter-wave hybrid beamforming transmitters using observation receivers with low-bit resolution analog-to-digital converters (ADCs).
Ahmed Ben Ayed   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy