International Journal On Advances in Telecommunications, volume 3, numbers 3 and 4, 2010

Type: journal

Notes: A free access journal featuring works submitted on an invitation basis only.

ISSN: 1942-2601

Articles: there are 19 articles

CARMA: A Distance Estimation Method for Internet Nodes and its Usage in P2P Networks
Gennadiy Poryev, Hermann Schloss, and Rainer Oechsle
keywords: Internet, Topology, Distance Estimation Method

Improving IPTV QoE taking the suitable MPEG-2/MPEG-4 Quantizer based on Jitter, Delay and lost packets measurements
Alejandro Canovas, Miguel Garcia, Jaime Lloret, Marcelo Atenas, and Rafael Rizo
keywords: MPEG-2/MPEG-4 Quantizer, Video Quality, IPTV.

User Equipment Energy Efficiency versus LTE Network Performance
Kari Aho, Tero Henttonen, Jani Puttonen, Lars Dalsgaard, and Tapani Ristaniemi
keywords: DRX, VoIP, Battery savings, Energy Efficiency, Capacity, CQI, Preamble, Adaptivity

Universal Ground Control Station for Heterogeneous Sensors
Axel Bürkle, Florian Segor, Matthias Kollmann, and Rainer Schönbein
keywords: ground control station; sensors; unmanned aerial vehicles; security; surveillance; disaster management

Secure Video for Android Devices
Raimund Ege
keywords: broadband video sharing; peer-to-peer content delivery; access control; Android video client

Evaluation of Spectrum Occupancy in an Urban Environment in a Cognitive Radio Context
Alexandru Martian, Calin Vladeanu, Ioana Marcu, and Ion Marghescu
keywords: spectrum occupancy; spectrum sensing; cognitive radio; measurement campaign.

Decentralized Spectrum and Power assignment in OFDMA Femtocells: Exploiting Different Levels of Coordination
Francisco Bernardo, Ramon Agustí, Jorge Cordero, and Carlos Crespo
keywords: femtocell; self-organization; OFDMA; coordination; performance tradeoff

Advanced Consideration of a Caller Pre-Validation Against Direct Spam Over Internet Telephony
Jürgen Müller and Michael Massoth
keywords: Communication system security; Telephone equipment; Telephony; Spam

Dynamic Spectrum Sharing in Cognitive Radio Networks: a Solution based on Multiagent Systems
Usama Mir, Leila Merghem-Boulahia, and Dominique Gaiti
keywords: Multiagent Systems; Cognitive Radio; Dynamic Spectrum Sharing; Contract Net Protocol; Cooperation; Ad hoc Networks.

Low Complexity Enhanced Hybrid Spectrum Sensing Architectures for Cognitive Radio Equipment
Ziad Khalaf, Amor Nafkha, Jacques Palicot, and Mohamed Ghozzi
keywords: Cognitive Radio, Spectrum sensing, Energy detector, Detection features.

Software Defined Radio Certification in Europe: Challenges and Processes
Gianmarco Baldini and Dimitrios Symeonidis
keywords: Software Defined Radio, Certification, Performance Benchmarking

A Mathematical Framework for the Performance Evaluation of an All-Optical Packet Switch with QoS Differentiation
John Vardakas, Ioannis Moscholios, Michael Logothetis, and Vassilios Stylianakis
keywords: optical packet switching; wavelength division multiplexing; packet blocking probability; markov chains; quality of service.

A Media Delivery Framework for On Demand Learning in Manufacturing Processes
Martin Zimmermann
keywords: Just-in-time Learning, Media Streaming Services, Manufacturing Processes, Mobile Devices, Push Service, Pull Service, SMIL, Web Services.

Distributed Control and Signaling using Cognitive Pilot Channels in a Centralized Cognitive Radio Network
Nicolás Bolívar and José Marzo
keywords: Cognitive Pilot Channel; Cognitive Radio Networks; Dynamic Spectrum Access; Medium Access Control

An Improved Multi-band Speech Enhancement Method for Colored Noise Estimation and Reduction
Radu Mihnea Udrea, Dragos Nicolae Vizireanu, Claudia Cristina Oprea, and Ionut Pirnog
keywords: speech enhancement; spectral subtraction; noise estimation; critical band

Performance Analysis of Multiuser DS-UWB system with Orthogonal and Non-orthogonal code under synchronous and Asynchronous transmission with UWB channel models
Himanshu B. Soni, Uday B. Deasi, and Shabbir N. Merchant
keywords: UWB, Synchronous-Asynchronous transmission, UWB channel model

A Semantic-oriented Framework for System Diagnosis
Manuela Popescu, Pascal Lorenz, and Jean Marc Nicod
keywords: system diagnosis, diagnosis validation, knowledge transfer; ontology-based diagnosis; semantic tag clouds; progressive ontology; temporal features

ICI Reduction Through Shaped OFDM in Coded MIMO-OFDM Systems
Wei Xiang, Julian Russell, and Yafeng Wang
keywords: Pulse shaping, inter-carrier interference (ICI) reduction, orthogonal frequency-division multiplexing (OFDM), multiple-input and multiple-output (MIMO), space-time coding, Rayleigh fading channel.

Performance Comparative Study of eXtended Satellite Transport Protocol over Traditional Satellites Networks and Nanosatellite Constellations
Maria-Mihaela Burlacu, Pascal Lorenz, and Joséphine Kohlenberg
keywords: transport protocol; nanosatellite; constellation; STP; XSTP; simulation.