• Publications
  • Influence
Big Data, Internet of Things and Cloud Convergence – An Architecture for Secure E-Health Applications
TLDR
We analyze existing components and methods of securely integrating big data processing with cloud M2M systems based on Remote Telemetry Units (RTUs) based on Exalead CloudView, a search based application. Expand
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Big Data Processing for Renewable Energy Telemetry Using a Decentralized Cloud M2M System
TLDR
We analyze a proposed cloud M2M system, where each RTU communicates by radio with a telemetry data gateway connected to a cloud computing infrastructure equipped with appropriate software that delivers processed data. Expand
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Energy Detection Algorithm for Spectrum Sensing Using Three Consecutive Sensing Events
TLDR
An energy detection (ED) algorithm, which takes into consideration three consecutive sensing events, is introduced in this letter. Expand
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Cognitive radio testing framework based on USRP
TLDR
A flexible testing framework for CR devices implemented using the Universal Software Radio Peripheral (USRP) Software Defined Radio (SDR) platform is proposed and described, together with a case study on a commercially available device. Expand
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Adaptive IED Spectrum Sensing Algorithm for Different Duty Cycle Values
TLDR
We propose an Adaptive threshold IED (AIED) algorithm, which requires some a priori knowledge about the Primary User (PU) signal, such as its average duty cycle and Signal-to-Noise Ratio (SNR). Expand
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Spectrum Occupancy in an Urban Environment: A Cognitive Radio Approach
TLDR
This paper presents results of a measurement campaign conducted in Bucharest, Romania, covering the frequency range from 25 MHz up to 3.4 GHz. Expand
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Comparative study of Radio Mobile and ICS Telecom propagation prediction models for DVB-T
TLDR
A comparative study between the results of a measurement campaign conducted in northern Greece and simulations performed with Radio Mobile and ICS Telecom radio planning tools is performed. Expand
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  • PDF
Access to RF White Spaces in Romania: Present and Future
TLDR
This paper provides an overview of the status of WS in Romania by analysing the current regulations and the analogue switch-off that is planned to take place in the near future (2015). Expand
  • 5
USRP-based experimental platform for energy detection in cognitive radio systems
TLDR
In this paper, we propose and analyze a practical implementation of an energy detector using Universal Software Radio Peripheral (USRP) software defined radio (SDR) platforms. Expand
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Spectral Occupancy Measurements in Rural and Urban Environments: Analysis and Comparison
TLDR
In order to enable the coexistence of an ever- increasing number of communication systems in a limited amount of frequency, the tradi tional static frequency all ocation is not the best solution any longer. Expand
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