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International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems
ISSN 1805-5443 · International Science and Engineering Society, o.s. · 119 articles in the index
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Journal Article
Botnet C&C Traffic and Flow Lifespans Using Survival Analysis
This paper addresses the issue of detecting unwanted traffic in data networks, namely the detection of botnet networks. In this paper, we focused on a time behavioral analysis, more specifically said – lifespans of a simulated botnet network traffic, collected and discovered from NetFlow messages…
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Journal Article
Analyzing Influence of the Transmission Medium on Timing Signals Transmitted by Hybrid Optical Transport Technologies
The contribution deals with synchronization aspects in SDH and Synchronous Ethernet timing networks utilizing optical transmission medium. First, it explains a hierarchical configuration of timing network elements, characterizes transmission features of the optical fiber, particularly its main…
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Journal Article
Enterprise network with software Asterisk PBX based on the PLC technology
This article presents the software Asterisk PBX solution design in enterprise PLC network (Power Line Communication). The description of the installation and configuration of software Asterisk PBX is involved in the design. The secure interconnection of two enterprise PLC network is implemented via…
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Journal Article
ICMP-based Third-Party Estimation of Cloud Availability
Cloud availability is an important parameter present in a typical Service Level Agreement (SLA). In order to check compliance with SLA commitments, a third party availability measurement is strongly needed. An availability estimation methods is evaluated here, based on the periodic repetition of…
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Journal Article
Optical Axis Identification Technique for Free Space Optics Transmission
This paper describes optical axis adjustment technique for an active free space optics transmission system. This system precisely controls the direction of a collimated thin laser beam using a motor driven laser emitting mechanism and positioning photodiodes. Before beginning laser beam feedback…
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Journal Article
Decoupling of Broadband Optical MIMO Systems Using the Multiple Shift SBR2 Algorithm
Polynomial singular value decomposition (PSVD) plays a very important role in broadband multiple-input multiple-output (MIMO) systems. One of its applications lies in the decoupling of MIMO convolutive mixing channel matrix in order to recover the transmitted signals corrupted by the channel…
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Journal Article
A Generic Reconfigurable Mixed Time and Frequency Domain QAM Transmitter with Forward Error Correction
In the past three decades, Field Programmable Gate Arrays (FPGAs) have emerged to be the backbone of digital signal processing, especially in high-speed communication systems. However, today, these devices are clocked below 1GHz and improvement in performance stays a big challenge on all…
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Journal Article
Effect of Traffic Uncertainities on the Design of Mixed Line Rate (MLR) Optical Networks
In the existing studies on Mixed Line Rate (MLR) optical networks, the network design methodology is based on the assumption of deterministic traffic, and hence, the effect of traffic uncertainty on the design of an MLR network remains an open problem of research. In this study, we upgrade our…
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Journal Article
Measuring of False Peaks Occurring via Planar Antenna Arrays DOA Estimation
Direction-of-arrival (DOA) of radio signals takes a great scientific interest for radar, sonar and wireless communication tasks. In this paper the problem of DOA estimation methods for circular and concentric circular antenna arrays is considered. The super-resolution method MUSIC is researched…
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Journal Article
Spectral and Power-Efficiency Trade-off in Fixed-Grid Optical Networks
The improvement of spectral efficiency in the MLR networks can be obtained by the reduction of sub-band spacing, or by minimizing the spacing of the sub-bands that operate at varied data rates. However, due to the presence of physical layer impairments, minimization in sub-band spacing leads to…
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Journal Article
A Novel Dedicated Route Protection Scheme for Survivability of Link Failure in Elastic Optical Networks
The spectrally efficient transportation of the high bit rate(s) data is achievable by the Elastic optical networks (EONs). However, in the EONs, owing to the failure occurrence even in an individual simple element, different service(s) maybe interrupted. Hence, it is imperative that the schemes for…
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Journal Article
Identification Systems and Their Legitimacy in the New Legislation on the Protection of Personal Data
In the new digital environment, citizens have the right to use tools to effectively control the usage of personal information related to them. Data protection is one of the fundamental rights in the EU guaranteed by the Charter of Fundamental Rights of the European Union. The article deals with the…
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Journal Article
Drop-Burst Length Evaluation of Urban VANETs
Networks performance is traditionally evaluated using packet delivery ratio (PDR) and latency (delay). We propose an addition mechanism the drop-burst length (DBL). Many traffic classes display varying application-level performance according to the pattern of drops, even if the PDR is similar. In…
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Journal Article
Two Dimensional Sensor Localization Using mN/2 Algorithm in Different Types of Distributed Fields
Wireless Sensor Network (WSN) refers to a group of locationally dispensed and dedicated sensors that observe and record physical and environmental conditions and coordinate the aggregated data at a centrical location. To serve new applications, localization is largely used in WSNs to define the…
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Journal Article
A High Speed Architecture for Lifting-based 2-D Cohen-Daubechies-Feauveau (5,3) Discrete Wavelet Transform used in JPEG2000
For real-time applications, efficient VLSI implementation of DWT is desired. In this paper, DWT architecture based on retiming for pipelining and unfolding is presented. The architecture is based on lifting one-dimensional Cohen-Daubechies-Feauveau (CDF) (5,3) wavelet filter, which is easily…
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Journal Article
Facial Age Estimation Using Spatial Weber Local Descriptor
This paper introduces a novel age estimation method using a new texture descriptor Weber Local Descriptor (WLD). This texture descriptor is analyzed in depth for age estimation problem. In the study, the multi-scale versions of holistic and spatial WLD (SWLD) descriptors are used to extract the age…
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Journal Article
Optimal Traffic Scheduling for Intrusion Prevention Systems
A major challenge for intrusion prevention system (IPS) sensors in today’s Internet is the amount of traffic these devices have to inspect. Hence this paper presents a linear program (LP) for traffic scheduling in multi-sensor environments that alleviates inspection loads at IPS sensors. The model…
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Journal Article
Electronic Elections Based on Group Signatures
This work deals with electronic elections and votingsystems. The paper presents a secure electronic voting solutionfor small and medium groups of voters. The proposed solutionis based on modern cryptographic schemes such as ElGamalencryption and a group signature scheme that keeps user…