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Zeynep Hasirci

Bio: Zeynep Hasirci is an academic researcher from Karadeniz Technical University. The author has contributed to research in topics: Busbar & Power-line communication. The author has an hindex of 7, co-authored 26 publications receiving 129 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, the authors deal with simulations of power line channel transfer functions in Network Simulator version 3 and present an empirical model and calculation of the channel transfer function for the first time.
Abstract: The paper deals with simulations of power line channel transfer functions in Network Simulator version 3. Firstly, an empirical model and calculation of the channel transfer function a ...

26 citations

Journal ArticleDOI
TL;DR: In this paper, a unified methodology which takes into account the advantages and disadvantages of different Power Line Communication (PLC) technologies suitable for Smart Metering deployment is presented. But this methodology is not suitable for large-scale deployment.
Abstract: The paper describes a unified methodology which takes into account the advantages and disadvantages of different Power Line Communication (PLC) technologies suitable for Smart Metering deployment. The methodology should provide a detailed evaluation of PLC technologies based on a clear definition of the different parameters and their measurement. Based on this methodology, we should be able to provide a comparison of the selected technologies and the methodology should also provide data for the design of a telecommunication infrastructure for Smart Metering/Smart Grids. In this paper and based on this methodology, we also present the performance tests carried out in laboratory environment on low voltage and in on-field conditions on medium voltage.DOI: http://dx.doi.org/10.5755/j01.eie.24.3.20983

20 citations

Journal ArticleDOI
TL;DR: The novel idea of simple performance assessment of broadband PLC communication via simulation is exploited, supposed to be used to understand, evaluate, and test the grid configuration before deployment before deployment.
Abstract: Building real Smart Metering and Smart Grid networks is very expensive and time-consuming and also it is impossible to install different technologies in the same environment only for comparison. Therefore, simulation and experimental pilot measurements are an easy, economical, and time-affordable solution for a first comparison and evaluation of different technologies and solutions. The local area networks (LAN) are the core of Smart Metering and Smart Grid networks. The two predominant technologies are mostly sufficient for LAN networks, Power Line Communication (PLC), and radio frequency (RF) solutions. For PLC it is hard to allow prediction of the behaviour. Performance assessment for point-to-point connection is easy, but for complex PLC networks with repeaters it is quite expensive. Therefore, a simulation is an easy, fast, and cheap solution for understanding the grid configuration, influence of particular topological components, and performance possibilities. Simulation results can, thus, provide material for the design of a telecommunication infrastructure for Smart Metering. This paper presents results of such a simulation study. It is based on realistic PLC channel model implementation in Network Simulator 3, our modification and extension of this implementation for our use case scenario. It uses Shannon’s formula to calculate theoretical maximum channel capacity. In particular, it provides channel capacity and achievable distances of broadband PLC (BB-PLC). In this article we also exploit our novel idea of simple performance assessment of broadband PLC communication via simulation. It is supposed to be used to understand, evaluate, and test the grid configuration before deployment.

15 citations

Proceedings ArticleDOI
03 Jul 2012
TL;DR: This new HAP model contains two cases-line of sight (LOS) and non-line-of- sight (NLOS) between a HAP and a user, and full formulations of total path loss for the four possible HAPs propagation environments at three different frequencies are given.
Abstract: In this paper, propagation modeling and performance analysis on the HAPs are obtained. Elevation angle is the dominant parameter on the model. All possible propagation environments are divided into four groups: suburban (SU), urban (U), dense urban (DU) and urban high rise (UHR). These groups are modeled using well-known statistical models with a dependence on elevation angle. The main parameters are the elevation angle, Rayleigh and Ricean propagation factors, and percentage of time a given fade depth is exceeded. To observe the effects of the parameters on the model, the correlation coefficients between model parameters and the fade depth are calculated. This new HAP model contains two cases—line of sight (LOS) and non-line of sight (NLOS) between a HAP and a user. In a conclusion, obtained models are combined with free space path loss and full formulations of total path loss for the four possible HAPs propagation environments at three different frequencies (2, 3.5, and 5.5 GHz) are given.

12 citations

Proceedings ArticleDOI
13 May 2014
TL;DR: In this paper, a high power busbar system (3 m length) is modelled physically and carried out by an EM analysis simulation tool based on methods of moments for three different port connections: L1-neutral, L2-neutral and L3-neutral.
Abstract: — This paper reports on the communication possibilities of high power busbar systems as a part of smart grid concept. A compact structure busbar system (3 m length) is modelled physically and carried out by an EM analysis simulation tool based on methods of moments. Scattering parameters of the busbar system are obtained for three different port connections: L1-Neutral, L2-Neutral and L3-Neutral. All simulation studies are conducted at three power line communication (PLC) frequency bands: CENELEC, FCC and Broadband. The results are presented in graphical form. The forward gain G S 21 G lies in the range (-0.00014) – (-0.004) dB, (-0.0016) – (-0.03 dB), and (-0.04) – (-7.3) dB for CENELEC, FCC and Broadband, respectively. The phase and amplitude characteristics of the busbar system have a linear distribution at narrowband. However, there is a discontinuity at the resonance frequency for broadband. It causes not only the capacitive effect but also inductive effect on the system.

10 citations


Cited by
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Journal ArticleDOI
TL;DR: Depending on the worldwide PLC regulation, standardization and technological developments, security schemes built around them can become interoperable from a standard point of view, but still have incompatible configurations or different maturity levels, or include non-standardized PLC functions.
Abstract: Power-line communications (PLC) have proven to be susceptible to the next-generation power transmission/distribution systems with end-to-end communication capability, considered as a revolutionary and evolutionary regime of existing power grids More importantly, with recent advancements in PLC technological regulation, standardization and certification have spurred a lot of interest in the field of advanced communication and control technologies for heterogeneous networks These advancements are expected to greatly enhance efficiency and reliability of future power systems with renewable energy resources, as well as distributed intelligence and demand response (DR) programs As various national and international organizations have started to draw PLC regulations, standards and technologies for countries, these standards intend to determine important criteria such as bandwidth, modulation types, channel coding schemes, operating frequency and electromagnetic capability limits from fixed indoor/outdoor applications to smart grid (SG) applications Depending on the worldwide PLC regulation, standardization and technological developments, security schemes built around them can become interoperable from a standard point of view, but still have incompatible configurations or different maturity levels, or include non-standardized PLC functions Moreover, the PLC based systems/solutions for renewable energy integration, are also surveyed in terms of distributed-power system (DPS) and distributed energy resources (DERs) units monitoring/controlling and management purposes Thus, a particular section is dedicated to PLC based systems/solutions utilization of renewable energy sources (RESs) in SG covering all aspects of a monotype and hybrid energy plants Finally, the survey is carried on by reviewing the most recent and comprehensive articles to highlight the importance of PLC in a logical way in the smart grid for readers

95 citations

Journal ArticleDOI
TL;DR: This paper reviews the existing literature for UAV communication with taking into account the energy consumption criteria, and proposes a multi-layered network architecture incorporating UAVs for public safety communication.
Abstract: Unmanned aerial vehicles (UAVs) have acquired remarkable popularity, thanks to their variety of applications in numerous domains spanning from surveillance, health to agriculture and smart cities. UAVs are also enabler in wireless communication that has potential features such as ubiquitous and reliable connectivity, fast and easy deployment, adaptive altitude, higher chance of line of sight (LOS) propagation path, higher mobility and flexibility. There are numerous surveys that summarized these advantages for different situations and scenarios. However, none of these surveys discussed the role of UAVs in public safety communications from the energy efficiency perspective. In this paper, we review the existing literature for UAV communication with taking into account the energy consumption criteria, and propose a multi-layered network architecture incorporating UAVs for public safety communication. Future research directions are also discussed.

83 citations

Journal ArticleDOI
TL;DR: A novel representation model is introduced that is destined for monitoring the IoT environment at runtime, expressing the overall quality of the system, and helping to utilize the available resources efficiently and encourage the efficient utilization of resources and simplify the production of next-generation IoT solutions.
Abstract: The Internet of Things (IoT) is a paradigm aimed at connecting everyday objects to the internet. IoT applications include smart cities, healthcare, agriculture, as well as the industry and manufacturing. The ability to monitor and control the physical world using information technology creates many opportunities. However, it also comes with some costs. The exponential growth of connected devices, the heterogeneity of IoT use cases, and the diversity of the network technologies yield a concern regarding IoT sustainability. With this work, we aim to contribute to this concern. In doing so, we introduce a novel representation model that is destined for (i) monitoring the IoT environment at runtime, (ii) expressing the overall quality of the system, and (iii) helping to utilize the available resources efficiently. We also define a feature set that describes the best the expectations of decentralized IoT platforms. Furthermore, we describe a quality-enabled decentralized IoT architecture too that incorporates the specified feature set as well as our representation model. Such solutions are necessary to improve and maintain IoT of the future and all its application domains, including the Industrial Internet of Things (IIoT). With the presented research, we aim to encourage the efficient utilization of resources and simplify the production of next-generation IoT solutions.

44 citations

Journal ArticleDOI
TL;DR: The implementation of near-space platform (NSP) coverage and associated technologies are examined and a brief integration of communication and navigation services using NSP from a top-level system description of how to relay, associated complementary systems, including radar sensor systems, satellite systems, and terrestrial networks can be used.
Abstract: Due to extreme conditions, the near-space region is vastly underused and can be utilized for various scientific uses. The unconstrained orbital mechanism and low fuel consumption advantages for using synthetic aperture radar over the satellites and airplanes navigation systems make these conditions superior for a wide range of services, monitoring, earth observation, and sensing applications. The augmented integration within the existing global navigation system can help in measuring the direction-of-arrival, as well as collecting and distributing accurate location information. For wireless sensing applications, it can enable a new range of opportunities, a wide range of smart sensor applications as experimental platforms for deployment of new technologies. Here, we also examine the implementation of near-space platform (NSP) coverage and associated technologies. Then, a brief integration of communication and navigation services using NSP from a top-level system description of how to relay, associated complementary systems, including radar sensor systems, satellite systems, and terrestrial networks can be used.

32 citations

Journal ArticleDOI
TL;DR: A new approach based on fuzzy logic and ant colony optimization is presented for the reconstruction of curves from a set of unorganized points, using fuzzy clustering to reduce the number of points to cluster centres.

20 citations