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Wyświetlanie 1-15 z 107
Tytuł:
Multicast Connections in Wireless Sensor Networks with Topology Control
Autorzy:
Piechowiak, M.
Stachowiak, K.
Bartczak, T.
Powiązania:
https://bibliotekanauki.pl/articles/307684.pdf
Data publikacji:
2016
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
multicasting
routing
wireless sensor networks
Opis:
The article explores the quality of multicast trees constructed by heuristic routing algorithms in wireless sensor networks where topology control protocols operate. Network topology planning and performance analysis are crucial challenges for wire and wireless network designers. They are also involved in the research on routing algorithms, and protocols for these networks. In addition, it is worth to emphasize that the generation of realistic network topologies makes it possible to construct and study routing algorithms, protocols and traffic characteristics for WSN networks.
Źródło:
Journal of Telecommunications and Information Technology; 2016, 1; 61-67
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environment emulation for WSN testbed
Autorzy:
Kapłoniak, R.
Kwiatkowski, Ł.
Szydło, T.
Powiązania:
https://bibliotekanauki.pl/articles/305451.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
sensor networks
testbed platform
emulation
Opis:
The development of applications for wireless sensor networks is a challenging task. For this reason, several testbed platforms have been created. They simplify the manageability of nodes by offering easy ways of programming and debugging sensor nodes. These platforms, sometimes composed of dozens of sensors, provide a convenient way for carrying out research on medium access control and data exchange between nodes. In this article, we propose the extension of the WSN testbed, which could be used for evaluating and testing the functionality of sensor networks applications by emulating a real-world environment.
Źródło:
Computer Science; 2012, 13 (3); 101-111
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Erlang-based sensor network management for heterogeneous devices
Autorzy:
Nieć, M.
Pikuła, P.
Mamla, A.
Turek, W.
Powiązania:
https://bibliotekanauki.pl/articles/305475.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Erlang
mobile devices
sensor networks
Opis:
The paper describes a system designed to manage and collect data from the network of heterogeneous sensors. It was implemented using Erlang OTP and CouchDB for maximum fault tolerance, scalability and ease of deployment. It is resistant to poor network quality, shows high tolerance for software errors and power failures, operates on flexible data model. Additionally, it is available to users through an Web application, which shows just how easy it is to use the server HTTP API to communicate with it. The whole platform was implemented and tested on variety of devices like PC, Mac, ARM-based embedded devices and Android tablets.
Źródło:
Computer Science; 2012, 13 (3); 139-151
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tendencje rozwojowe i możliwości wykorzystania sensorów i sieci sensorów do celów wojskowych
Development trends and opportunities to use sensors and sensor networks for military purposes
Autorzy:
Łukasiewicz, H.
Powiązania:
https://bibliotekanauki.pl/articles/347904.pdf
Data publikacji:
2011
Wydawca:
Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Tematy:
sensory
sieć sensorów
sensors
sensor networks
Opis:
Problematyka wykorzystania sensorów, nie tylko u nas w kraju, jest tematem gorących dyskusji, prac badawczych oraz polemik. W związku z powstaniem koncepcji działań sieciocentrycznych, nastąpiło zwiększenie intensywności prac badawczo - rozwojowych w zakresie wykorzystania sensorów do celów wojskowych. W stosunku do sensorów oraz sieci sensorów dla potrzeb sił zbrojnych stawiane są bardzo wysokie wymagania, nie tylko związane z kosztami, ale przede wszystkim wymagania związane z możliwościami rozpoznawczymi, zachowaniem bezpieczeństwa transmisji danych, odporności na zakłócenia elektromagnetyczne, itp. wymagań. Powyższa publikacja ma na celu przybliżenie czytelnikowi zagadnień związanych z wielkościami fizycznymi mierzonymi przez sensory oraz budową sensorów, i jest pierwszą publikacją z cyklu artykułów dotyczących sensorów i sieci sensorów do zastosowań militarnych.
The use of sensors is the subject of research and heated discussions not only in our country. Through the creation of network centric warfare – NCW – the intensity of research about the use of sensors for military applications is on the increase. The use of sensors and sensor networks for the military forces must meet several requirements, which are not only related to their costs. These requirements are primarily associated with the reconnaissance possibilities of sensors, resistance to electromagnetic interference or with maintaining security of data transmissions. This publication is the first from the series of publications about sensors and sensor networks for military applications. Its purpose is to familiarise the reader with issues related to the construction of sensors as well as the physical quantities measured by them.
Źródło:
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki; 2011, 2; 20-37
1731-8157
Pojawia się w:
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mathematical models for specialized and sensory networks of wireless access
Autorzy:
Tymchenko, O.
Zelyanovsky, M.
Szturo, K.
Tymchenko, O. O.
Powiązania:
https://bibliotekanauki.pl/articles/298196.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
sensor networks
mathematical model
topology control
Opis:
This article reviews and compares the special features of specialized wireless and sensor networks. The components of a mathematical model of existing specialized wireless and sensor network are also available for review, particularly: wireless channel models, signal propagation models and communication graph models, etc. The need for a topology control mechanism in wireless and sensor networks is also explained.
Źródło:
Technical Sciences / University of Warmia and Mazury in Olsztyn; 2016, 19(2); 129-138
1505-4675
2083-4527
Pojawia się w:
Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A simple vehicle classification framework for wireless audio-sensor networks
Autorzy:
Malhotra, B.
Nikolaidis, I.
Harms, J.
Powiązania:
https://bibliotekanauki.pl/articles/308519.pdf
Data publikacji:
2008
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
sensor networks
vehicle classification
acoustic signals
Opis:
Vehicle tracking is one of the important applications of wireless sensor networks. We consider an aspect of tracking: the classification of targets based on the acoustic signals produced by vehicles. In this paper, we present a naive classifier and simple distributed schemes for vehicle classification based on the features extracted from the acoustic signals. We demonstrate a novel way of using Aura matrices to create a new feature derived from the power spectral density (PSD) of a signal, which performs at par with other existing features. To benefit from the distributed environment of the sensor networks we also propose efficient dynamic acoustic features that are low on dimension, yet effective for classification. An experimental study has been conducted using real acoustic signals of different vehicles in an urban setting. Our proposed schemes using a na¨ive classifier achieved highly accurate results in classifying different vehicles into two classes. Communication and computational costs were also computed to capture their trade-off with the classification quality.
Źródło:
Journal of Telecommunications and Information Technology; 2008, 1; 43-50
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sensor-Actor Network Solution for Scalable Ad-hoc Sensor Networks
Autorzy:
Chaczko, Z.
Chiu, C.
Aslanzadeh, S.
Dune, T.
Powiązania:
https://bibliotekanauki.pl/articles/227214.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Sensor-Actor Networks (SANETS)
Ad-hoc Wireless Sensor Networks (WSNS)
middleware
distributed software services
Opis:
Architects of ad-hoc wireless Sensor-Actor Networks (SANETS) face various problems and challenges. The main limitations relate to aspects such as the number of sensor nodes involved, low bandwidth, management of resources and issues related to energy management. In order for these networks to be functionally proficient, the underlying software system must be able to effectively handle unreliable and dynamic distributed communication, power constraints of wireless devices, failure of hardware devices in hostile environments and the remote allocation of distributed processing tasks throughout the wireless network. The solution must be solved in a highly scalable manner. This paper provides the requirements analysis and presents the design of a software system middleware that provides a scalable solution for ad-hoc sensor network infrastructure made of both stationary and mobile sensors and actuators.
Źródło:
International Journal of Electronics and Telecommunications; 2012, 58, 1; 55-62
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Self-organization and Routing Algorithms for the Purpose of the Sensor Network Monitoring Environmental Conditions on a Given Area
Autorzy:
Bronk, K.
Lipka, A.
Wereszko, B.
Żurek, J.
Żurek, K.
Powiązania:
https://bibliotekanauki.pl/articles/307916.pdf
Data publikacji:
2016
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
network management
network self-organization
sensor networks
Opis:
The article describes an implementation of wireless sensor network (WSN) based on the IEEE 802.15.4-2006 standard, which was designed to monitor environmental conditions (e.g. temperature, humidity, light intensity, etc.) on a given area. To carry out this task, a self-organization algorithm called KNeighbors was selected. It exhibits low computational complexity and is satisfactory with respect to energy consumption. Additionally, the authors proposed a novel routing algorithm and some modifications to the MAC layer of the IEEE 802.15.4 standard. The article discusses the selected algorithms and procedures that were implemented in the network.
Źródło:
Journal of Telecommunications and Information Technology; 2016, 4; 39-52
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Leach and heed clustering algorithms in wireless sensor networks: a qualitative study
Autorzy:
Kazerooni, A A
Jelodar, H
Aramideh, J
Powiązania:
https://bibliotekanauki.pl/articles/958002.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
wireless sensor networks
clustering algorithm
HEED
LEACH
Opis:
Wireless sensor network consists of numerous small and low cost sensors which collect and transmit environmental data. These nodes are spatially distributed and capable of measuring their ambient. Sensor node is responsible for collecting data in regular intervals, converting the obtained data into electronic signals and transmitting data to sink node or base station through reliable wireless communications. Moreover, these nodes are supplied by non-rechargeable batteries with limited energy. Lifetime and network coverage are crucial factors in WSNs. Thus, particular algorithms must be employed so that energy consumption is reduced. In this paper two clustering algorithms LEACH and HEED are investigated.
Źródło:
Advances in Science and Technology. Research Journal; 2015, 9, 25; 7-11
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Car-finding system with couchdb-based sensor management platform
Autorzy:
Nocuń, Ł.
Nieć, M
Pikuła, P.
Mamla, A.
Turek, W.
Powiązania:
https://bibliotekanauki.pl/articles/305636.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
sensor networks
mobile devices
car plates recognition
Opis:
The growing performance of low-cost mobile devices makes it possible to perform advanced processing on mobile sensors. This creates the need to building a management system for groups of sensors actively analyzing signals fromhardware devices. In this paper, an architecture of a CouchDB-Based Sensor Management Platform is presented and its application for the problem of finding stolen cars is shown. Detailed performance tests of the platform as well as its application are provided.
Źródło:
Computer Science; 2013, 14 (3); 403-422
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A study on routing problems and different routing protocols in wireless sensor networks
Autorzy:
Venkatesakumar, V.
Ragasudha, R.
Powiązania:
https://bibliotekanauki.pl/articles/1182939.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
wireless sensor networks
routing protocols
routing problems
Opis:
Extensive utilization of WSN is the reason of advancement of numerous routing protocols. The Late advances in WSN now witness the expanded enthusiasm for the potential use in applications like Environmental, Military, Space Exploration, Health (Scanning), Vehicular Movement, disaster management, Mechanical anxiety levels of appended objects, battle field observation and so forth. Sensors are required to be remotely conveyed in unattended situations. Propels in WSN innovation has given the accessibility of little and minimal effort sensor hubs with a capacity of sensing different sorts of physical and natural environment conditions, wireless communication and data processing. Assortment of sensing capacities results in bounty of application areas. However, the attributes of WSN require more powerful strategies for data forwarding. The sensor hubs in WSN have a constrained transmission range, and their handling and capacity abilities and as well as their energy assets are also restricted. Routing protocols for WSN are in charge of keeping up the routes in the network system and need to guarantee dependable multi-hop communication under these conditions. Routing as one key innovations of wireless sensor systems has now turned into a hot examination on the grounds that the uses of WSN are all over the place, it is unthinkable that there is a routing protocol suitable for all applications. In this paper, we give an overview of routing issues routing protocols for Wireless Sensor Network.
Źródło:
World Scientific News; 2016, 49, 2; 236-248
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survey of Energy Harvesting Systems for Wireless Sensor Networks in Environmental Monitoring
Autorzy:
Dziadak, B.
Makowski, Ł.
Michalski, A.
Powiązania:
https://bibliotekanauki.pl/articles/220866.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
environmental monitoring
wireless sensor networks
energy harvesting
Opis:
Wireless Sensor Networks (WSNs) have existed for many years and had assimilated many interesting innovations. Advances in electronics, radio transceivers, processes of IC manufacturing and development of algorithms for operation of such networks now enable creating energy-efficient devices that provide practical levels of performance and a sufficient number of features. Environmental monitoring is one of the areas in which WSNs can be successfully used. At the same time this is a field where devices must either bring their own power reservoir, such as a battery, or scavenge energy locally from some natural phenomena. Improving the efficiency of energy harvesting methods reduces complexity of WSN structures. This survey is based on practical examples from the real world and provides an overview of state-of-the-art methods and techniques that are used to create energyefficient WSNs with energy harvesting.
Źródło:
Metrology and Measurement Systems; 2016, 23, 4; 495-512
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ACO-Inspired Energy-Aware Routing Algorithm for Wireless Sensor Networks
Autorzy:
Yamamoto, Ryo
Nishibu, Seira
Yamazaki, Taku
Okamura, Yasushi
Tanaka, Yoshiaki
Powiązania:
https://bibliotekanauki.pl/articles/308447.pdf
Data publikacji:
2019
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
ant colony optimization
loadbalancing
routing algorithm
sensor networks
Opis:
Multi-hop networks, such as WSNs, become an object of increasing attention as an emerging technology which plays an important role for practical IoT applications. These multi-hop networks generally consist of mobile and small terminals with limited resources, which makes them vulnerable to various network status changes. Moreover, the limited nature of terminal resources available, especially in terms of battery capacity, is one of the most important issues to be addressed in order to prolong their operating time. In order to ensure efficient communications in such networks, much research has already been conducted, especially in the field of routing and transmission technologies. However, conventional approaches adopted in the routing field still suffer from the so-called energy hole problem, usually caused by unbalanced communication loads existing due to difficulties in adaptive route management. To address this issue, the present paper proposes a novel routing algorithm that utilizes ACO-inspired routing based on residual energy of terminals. Operational evaluation reveals its potential to ensure balanced energy consumption and to boost network performance.
Źródło:
Journal of Telecommunications and Information Technology; 2019, 1; 5-13
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simultaneity Analysis In A Wireless Sensor Network
Autorzy:
Malović, M.
Brajović, L.
Mišković, Z.
Šekara, T.
Powiązania:
https://bibliotekanauki.pl/articles/220479.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
time
frequency
simultaneity
synchronization
temperature
wireless sensor networks
Opis:
An original wireless sensor network for vibration measurements was designed. Its primary purpose is modal analysis of vibrations of large structures. A number of experiments have been performed to evaluate the system, with special emphasis on the influence of different effects on simultaneity of data acquired from remote nodes, which is essential for modal analysis. One of the issues is that quartz crystal oscillators, which provide time reading on the devices, are optimized for use in the room temperature and exhibit significant frequency variations if operated outside the 20–30°C range. Although much research was performed to optimize algorithms of synchronization in wireless networks, the subject of temperature fluctuations was not investigated and discussed in proportion to its significance. This paper describes methods used to evaluate data simultaneity and some algorithms suitable for its improvement in small to intermediate size ad-hoc wireless sensor networks exposed to varying temperatures often present in on-site civil engineering measurements.
Źródło:
Metrology and Measurement Systems; 2015, 22, 2; 275-288
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Configurable Secured Adaptive Routing Protocol for Mobile Wireless Sensor Networks
Autorzy:
Alnaser, Ahmed
Al-Junaid, Hessa
Almesaeed, Reham
Powiązania:
https://bibliotekanauki.pl/articles/2134047.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
routing protocol
mobile wireless sensor networks
WSN
security
Opis:
This paper aims at designing, building, and simulating a secured routing protocol to defend against packet dropping attacks in mobile WSNs (MWSNs). This research addresses the gap in the literature by proposing Configurable Secured Adaptive Routing Protocol (CSARP). CSARP has four levels of protection to allow suitability for different types of network applications. The protocol allows the network admin to configure the required protection level and the ratio of cluster heads to all nodes. The protocol has an adaptive feature, which allows for better protection and preventing the spread of the threats in the network. The conducted CSARP simulations with different conditions showed the ability of CSARP to identify all malicious nodes and remove them from the network. CSARP provided more than 99.97% packets delivery rate with 0% data packet loss in the existence of 3 malicious nodes in comparison with 3.17% data packet loss without using CSARP. When compared with LEACH, CSARP showed an improvement in extending the lifetime of the network by up to 39.5%. The proposed protocol has proven to be better than the available security solutions in terms of configurability, adaptability, optimization for MWSNs, energy consumption optimization, and the suitability for different MWSNs applications and conditions.
Źródło:
International Journal of Electronics and Telecommunications; 2022, 68, 3; 577--586
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 107

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