Wszystkie pola: heterogeneous - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Performance Evaluation of a Zone-based Three-level Heterogeneous Clustering Protocol for WSNs
Autorzy:: Rao, Sanapala Shanmukha
Shilpi
Kumar, Arvind
Powiązania:: https://bibliotekanauki.pl/articles/24200745.pdf
Data publikacji:: 2023
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: clustering
heterogeneous
network lifetime
stability period
zone-based WSN
Opis:: This paper proposes a zone-based three-level heterogeneous clustering protocol (ZB-TLHCP) for heterogeneous WSNs. In ZB-TLHCP, the sensor field/region is divided into zones where super, advance, and normal nodes are deployed uniformly and randomly. The performance of the proposed ZB-TLHCP system is compared with that of zonal-stable election protocol (Z-SEP), distributed energy efficient clustering (DEEC), and threshold-based DEEC (TDEEC) protocol by varying the number of super and advance nodes, their energy levels for the fixed sensor field, and the total number of nodes. Matlab simulation results revealed that the proposed ZB-TLHCP solution performed better than Z-SEP, DEEC, and TDEEC protocols, as it increased the instability period, prolonged the network's lifetime, and achieved higher throughput values.
Źródło:: Journal of Telecommunications and Information Technology; 2023, 3; 85--93
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Performance Comparison of Homogeneous and Heterogeneous 3D Wireless Sensor Networks
Autorzy:: Thalore, R.
Bhattacharya, P. P.
Jha, M. K.
Powiązania:: https://bibliotekanauki.pl/articles/307972.pdf
Data publikacji:: 2017
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: heterogeneous WSN
homogeneous WSN
ML-MAC
QualNet 6.1 Network Simulator
Wireless Sensor Networks
Opis:: Recent developments in wireless sensor networks include their applications in safety, medical monitoring, environment monitoring and many more. Limited battery energy and efficient data delivery are most considered constraints for sensor nodes. Depletion of node battery ceases functioning of the node. The network lifetime can be enhanced with the help of Multi-Layer protocol (ML-MAC). This paper presents a practical approach including 3-dimensional deployment of sensor nodes and analyzes two different types of networks – homogeneous and heterogeneous WSNs. To analyze various QoS parameters, two types of nodes are considered in a heterogeneous network. The performance of both the networks is compared through simulations. The results show that ML-MAC performs better for a 3D heterogeneous WSNs.
Źródło:: Journal of Telecommunications and Information Technology; 2017, 2; 32-37
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Multi-Domain Modeling and Simulations of the Heterogeneous Systems
Autorzy:: Pieniek, T.
Janczyk, G.
Janusz, P.
Szynka, J.
Grabiec, P.
Kociubiński, A.
Ekwińska, M.
Tomaszewski, D.
Malinowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/308063.pdf
Data publikacji:: 2010
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: Corona
Coventor
3D integration
e-Cubes
heterogeneous systems
MATLAB
modeling
simulation
Opis:: This paper discusses the multi-domain modeling and simulation issues of the design and analysis of heterogeneous integrated systems. Modeling and simulation methodlogy and tools are also discussed.
Źródło:: Journal of Telecommunications and Information Technology; 2010, 1; 34-39
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Ubiquity of Client Access in Heterogeneous Access Environment
Autorzy:: Gierłowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/308576.pdf
Data publikacji:: 2014
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: handover
mesh networks
mobility
technological networks
ubiquitous access
wireless networks
Opis:: With popularization of mobile computing and diverse offer of mobile devices providing functionality comparable to personal computers, the necessity of providing network access for such users cannot be disputed. The requirement is further reinforced by emergence of general purpose mobile operating systems which provide their full functionality only with network connectivity available and popular XaaS (Everything as a Service) approach. In this situation and combined with the fact that most Internet-based services are able to function efficiently even in best effort environment, requirement of ubiquity of network access becomes one of the most important elements of today’s computing environment. This paper presents a general overview of the the vast group of mechanisms and technologies utilized in modern attempts to efficiently provide ubiquity on network access in heterogeneous environment of today’s access systems. It starts with division of users interested in ubiquitous network access into broad groups of common interest, complete with their basic requirements and access characteristics, followed by a survey of both already popular and new wireless technologies suitable to provide such access. Then a general discussion of most important challenges which must be addressed while attempting to fulfill the above goal is provided, addressing topics such as handover control and mobility management.
Źródło:: Journal of Telecommunications and Information Technology; 2014, 3; 3-16
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The INTERSECTION Framework: Applied Security for Heterogeneous Networks
Autorzy:: Flizikowski, A.
Gajewski, M.
Hołubowicz, M.
Kowalczyk, Z.
Romano, S. P.
Powiązania:: https://bibliotekanauki.pl/articles/309517.pdf
Data publikacji:: 2011
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: IDMEF
IDS
IPFIX
security framework
Opis:: Inherent heterogeneity of the networks increases risk factor and new security threats emerge due to the variety of network types and their vulnerabilities. This paper presents an example of applied security framework - the INTERSECTION. By referring to the ISO/IEC security standards and to the FP7 INTERSECTION project results, authors underline that in the processes of managing and planning security, investigating technology and business governance should be at least as important as formalizing the need for decisions on security cooperation between operators. INTERSECTION provides security mechanisms and introduces capability possible only with a management solution that is at a higher level than that of any of the connected systems alone.
Źródło:: Journal of Telecommunications and Information Technology; 2011, 1; 22-31
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Intrusion Detection in Heterogeneous Networks of Resource-Limited Things
Autorzy:: Kozakiewicz, A.
Lasota, K.
Marks, M.
Powiązania:: https://bibliotekanauki.pl/articles/307880.pdf
Data publikacji:: 2015
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: client honeypot
internet of things (IoT)
intrusion detection
wireless sensor network
Opis:: The paper discusses the threats to networks of resource-limited things such as wireless sensors and the different mechanisms used to deal with them. A novel approach to threat detection is proposed. MOTHON is a movement-assisted threat detection system using mobility to enhance a global threat assessment and provide a separate physical secure channel to deliver collected information.
Źródło:: Journal of Telecommunications and Information Technology; 2015, 4; 10-14
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Link Quality Assessment Algorithm for Heterogeneous Self-organizing Maritime Communications Network
Autorzy:: Bronk, K.
Lipka, A.
Niski, R.
Powiązania:: https://bibliotekanauki.pl/articles/307958.pdf
Data publikacji:: 2018
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: 3G
cellular systems
link quality indicator
LTE
maritime radiocommunications
Opis:: The article introduces a method of performing a radio link quality assessment based on the Link Quality Indicator (LQI) which will be calculated for every system that is available. The method presented has been developed during the netBaltic project completed in Poland and generally applies to the so-called maritime zone A, i.e. the sea area where ships are still within the range of shore-based radio communication systems, particularly 3G/LTE cellular networks. The algorithm was developed based on the results of measurements obtained during two separate campaigns. That measurement data served as a basis for the method’s initial assumptions and was utilized during the method’s veriﬁcation.
Źródło:: Journal of Telecommunications and Information Technology; 2018, 2; 32-40
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Making ad hoc networking a reality: problems and solutions
Autorzy:: Bouckaert, S.
Naudts, D.
Moerman, I.
Demeester, P.
Powiązania:: https://bibliotekanauki.pl/articles/308507.pdf
Data publikacji:: 2008
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: wireless ad hoc
wireless mesh
experiments
interference
implementation
hierarchical heterogeneous architecture
Opis:: Despite the fact that many electronic evices are equipped with wireless interfaces and numerous publications on wireless ad hoc and mesh networking exist, these networks are seldom used in everyday life. A possible explanation is the fact that only few of the numerous theoretically promising proposals lead to practical solutions on real systems. Currently, wireless network design is mostly approached from a purely theoretical angle. In this paper, common theoretical assumptions are challenged and disproven, and key problems that are faced when putting theory to practice are determined by experiment. We show how these problems can be mitigated, and motivate why a heterogeneous hierarchical wireless mesh architecture, and a multidisciplinary research approach can help in making wireless ad hoc networking a reality.
Źródło:: Journal of Telecommunications and Information Technology; 2008, 1; 3-11
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Network Selection in Wireless Heterogeneous Networks: a Survey
Autorzy:: Bendaoud, F.
Abdennebi, M.
Didi, F.
Powiązania:: https://bibliotekanauki.pl/articles/309296.pdf
Data publikacji:: 2018
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: always best connected
fuzzy logic
game theory
multiple attribute decision making
quality of service
radio access technologies
Opis:: Heterogeneous wireless networks is a term referring to networks combining different radio access technologies with the aim of establishing the best connection possible. In this case, users with multi-mode terminals can connect via different wireless technologies, such as 802.16, 802.11, UMTS, HSPA and LTE, all at the same time. The problem consists in the selection of the most suitable from all radio access technologies available. The decision process is called network selection, and depends on several parameters, such as quality of service, mobility, cost, energy, battery life, etc. Several methods and approaches have been proposed in this context, with their objective being to offer the best QoS to the users, and/or to maximize re-usability of the networks. This paper represents a survey of the network selection methods used. Multiple attribute-dependent decision-making methods are presented. Furthermore, the game theory concept is illustrated, the use of the fuzzy logic is presented, and the utility functions deﬁning the network selection process are discussed.
Źródło:: Journal of Telecommunications and Information Technology; 2018, 4; 64-74
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Impact of Signaling System Performance on QoE in Next Generation Networks
Autorzy:: Batalla, J. M.
Śliwiński, J.
Tarasiuk, H.
Burakowski, W.
Powiązania:: https://bibliotekanauki.pl/articles/308179.pdf
Data publikacji:: 2009
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: call setup delay
class of service
heterogeneous networks
next generation networks
quality of experience
quality of service
signaling system
Opis:: The first experience of quality by multimedia applications' users takes place during the setup phase of a new connection. If the setup phase is not accepted or "slowly accepted", the confidence of the user decreases. The user becomes more sensitive when he/she pays the connections with assured quality of service (QoS). In this case, the process of call request should be also accomplished with QoS guarantees. This paper presents the signaling sub-system implemented within the EuQoS system. The EuQoS signaling process follows main assumptions of next generation networks (NGN) architecture and performs tasks related with codec agreement between multimedia end users, admission control and resource reservation functions. In this paper, we present analytical, simulation and experimental results showing the impact of signaling system performance on quality of experience (QoE) for the potential users of multi-layer EuQoS system. In particular, the presented approach aims at ensuring user QoE of the connection setup phase by ensuring QoS for transferring signaling messages by the network.
Źródło:: Journal of Telecommunications and Information Technology; 2009, 4; 124-137
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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