Results 111 to 120 of about 41,621 (188)

Performance analysis of Bluetooth packet transmission and adaptive packet selection strategy

open access: yesTongxin xuebao, 2005
Relations between bit error rate and average received signal-to-noise ratio (SNR) in AWGN channel were derived for three modulation modes defined by Bluetooth 2.0+EDR new specification.
YANG Fan, WANG Ke, QIAN Zhi-hong
doaj   +2 more sources

Simultaneous single image super‐resolution and blind Gaussian denoising via slim ghost full‐frequency residual blocks

open access: yesIET Image Processing
Given that super‐resolution (SR) aims to recover lost information, and low‐resolution (LR) images in real‐world conditions might be corrupted with multiple degradations, considering basic bicubic down‐sampling as the sole degradation significantly limits
Saghar Farhangfar   +4 more
doaj   +1 more source

Chaotic Multiple Access System Based on Orthogonal Chaotic Vector of Lorenz System

open access: yesمجلة النهرين للعلوم الهندسية, 2017
Chaos phenomenon is capable of generating chaotic sequences with low cross-correlation, which can be useful for spreading the direct sequence code division multiple access (DS-CDMA) system.
Hikmat N. Abdullah
doaj  

Semi-analytical evaluation of concatenated RS/LDPC coding performance with finite block interleaving [PDF]

open access: yes, 2017
Guenach, Mamoun   +4 more
core   +1 more source

Optimalization of Beacon Selection for Localization in Wireless AD-HOC Networks

open access: yesAdvances in Electrical and Electronic Engineering, 2008
In this paper we engage in optimalization of convenient beacons for localization position of a node in the ad-hoc network. An algorithm designed by us localizes position of moving or static node by RSS (Received Signal Strength) method and trilateration.
Martin Matula, Jan Duha
doaj  

Análisis del desempeño de un sistema de comunicaciones con modulación DBPSK/DQPSK basado en hardware reconfigurable

open access: yesIngenierías USBMed, 2014
En este informe de trabajo de grado bajo la modalidad de investigación se presenta la implementación en bloques hardware de un sistema de transmisión y recepción de señales digitales moduladas en fase diferencial DBPSK y DQPSK.
Fabián A. Burbano Robles   +2 more
doaj  

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