Temat: AD HOC NETWORKS - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Hyper-heuristics for power-aware routing protocols
Autorzy:: Pilski, M.
Seredynski, F.
Powiązania:: https://bibliotekanauki.pl/articles/92944.pdf
Data publikacji:: 2008
Wydawca:: Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:: protocols
ad hoc networks
genetic algorithm
hyper-heuristics
Opis:: The idea underlying hyper-heuristics is to discover some combination of straightforward heuristics that performs very well across a whole range of problems. In this paper we describe genetic algorithm-based (GA) approach that learns such a heuristic combination for solving energy-efficient routing problem in mobile ad hoc networks (MANETs).
Źródło:: Studia Informatica : systems and information technology; 2008, 2(11); 37-47
1731-2264
Pojawia się w:: Studia Informatica : systems and information technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Providing QoS Guarantees in Broadband Ad Hoc Networks
Autorzy:: Natkaniec, M.
Kosek-Szott, K.
Szott, S.
Głowach, A.
Pach, A. R.
Powiązania:: https://bibliotekanauki.pl/articles/308394.pdf
Data publikacji:: 2011
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: ad-hoc networks
QoS
IEEE 802.11 EDCA
Opis:: This paper presents a novel QoS architecture for IEEE 802.11 multihop broadband ad hoc networks integrated with infrastructure. The authors describe its features, including MAC layer measurements, traffic differentiation, and admission control. The modules required by the network elements as well as their integration are also presented. Additionally, the paper presents results which validate its correct operation and prove its superiority over plain IEEE 802.11. The authors are convinced that the proposed solution will provide QoS support for a variety of services in future mobile ad hoc networks.
Źródło:: Journal of Telecommunications and Information Technology; 2011, 4; 92-98
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:: Multicriterion analysis and choosing of the optimal routing in Ad-hoc networks
Analiza wielokryterialna i wybór optymalnej trasy routingu w sieciach Ad-hoc
Autorzy:: Bezruk, V.
Halchenko, K.
Powiązania:: https://bibliotekanauki.pl/articles/407793.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:: ad-hoc networks
routing protocols
optimization
sieć ad hoc
protokół rutingu
optymalizacja
Opis:: The paper discusses the practical aspects of application of multicriterion approach to solving the problem of an optimal routing for wireless selforganizing networks. As the initial metrics analyzed convergence time, memory overhead, control overhead, time complexity and communication complexity.
W artykule omówiono praktyczne aspekty zastosowania podejścia wielokryterialnego do rozwiązania problemu optymalnego trasowania dla bezprzewodowych samoorganizujących się sieci. Jako początkowe metryki analizowano czas zbieżności, narzut pamięci, narzut sterowania, złożoność czasu i złożoność komunikacji.
Źródło:: Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2018, 8, 3; 11-14
2083-0157
2391-6761
Pojawia się w:: Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Parallel and Distributed Simulation of Ad Hoc Networks
Autorzy:: Sikora, A.
Niewiadomska-Szynkiewicz, E.
Powiązania:: https://bibliotekanauki.pl/articles/309034.pdf
Data publikacji:: 2009
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: ad hoc networks
distributed simulation
mobile network
software systems
Opis:: Modeling and simulation are traditional methods used to evaluate wireless network design. This paper addresses issues associated with the application of parallel discrete event simulation to mobile ad hoc networks design and analysis. The basic characteristics and major issues pertaining to ad hoc networks modeling and simulation are introduced. The focus is on wireless transmission and mobility models. Particular attention is paid to the MobASim system, a Javabased software environment for parallel and distributed simulation of mobile ad hoc networks. We describe the design, performance and possible applications of presented simulation software.
Źródło:: Journal of Telecommunications and Information Technology; 2009, 3; 76-84
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:: A Survey of QoS Routing Protocols for Ad Hoc Networks
Autorzy:: Tafa, Igli
Powiązania:: https://bibliotekanauki.pl/articles/1035767.pdf
Data publikacji:: 2011
Wydawca:: Academicus. International Scientific Journal publishing house
Tematy:: QoS
MAODV
Multicast routing
AD HOC NETWORKS
MAODV-Extension
Opis:: The aim of this paper is to give a big survey in enhancing the balance of the routing load and the consumption of resources using network layer metrics for the path discovery in the MAODV protocol. A ad hoc network (AD HOC NETWORKS) consists of a collection of wireless mobile nodes, which form a temporary network without relying on any existing infrastructure or centralized administration. The bandwidth of the ad hoc networks architecture is limited and shared between the participating nodes in the network, therefore an efficient utilization of the network bandwidth is very important. Multicasting technology can minimize the consumption of the link bandwidth and reduce the communication cost too. As multimedia and group-oriented computing gains more popularity for users of ad hoc networks, the effective Quality of Service (QoS) of the multicasting protocol plays a significant role in ad hoc networks. In this paper we propose a reconstruction of the MAODV protocol by extending some featuring QoS in MAODV. All simulations are prepared with the NS2 simulator and compare the performance of this algorithm with the MAODV algorithm. The achieved results illustrate faster path discovery and more performing routing balance in the use of MAODV-Extension.This paper would give relatively a modest support in Mobile Technology according to QoS communication.
Źródło:: Academicus International Scientific Journal; 2011, 03; 108-120
2079-3715
2309-1088
Pojawia się w:: Academicus International Scientific Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: LPAR: an adaptive routing strategy for MANETs
Autorzy:: Abolhasan, M.
Wysocki, T. A.
Dutkiewicz, E.
Powiązania:: https://bibliotekanauki.pl/articles/307737.pdf
Data publikacji:: 2003
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: LPAR
GPS-based routing protocol
mobile ad hoc networks
Opis:: This paper presents a new global positioning system (GPS)-based routing protocol, called location-based point-to-point adaptive routing (LPAR) for mobile ad hoc networks. This protocol utilises a 3-state route discovery strategy in a point-to-point manner to reduce routing overhead while maximising throughput in medium to large mobile ad hoc networks. In LPAR, data transmission is adaptable to changing network conditions. This is achieved by using a primary and a secondary data forwarding strategy to transfer data from the source to the destination when the condition of the route is changed during data transmission. A simulation study is performed to compare the performance of LPAR with a number of different exisiting routing algorithms. Our results indicate that LPAR produces less overhead than other simulated routing strategies, while maintains high levels of throughput.
Źródło:: Journal of Telecommunications and Information Technology; 2003, 2; 28-37
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Multiobjective Design of Wireless Ad Hoc Networks: Security, Real-Time and Lifetime
Autorzy:: Zdravko, K.
Powiązania:: https://bibliotekanauki.pl/articles/308972.pdf
Data publikacji:: 2009
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: ad hoc networks
low-power routing
multihop communication
secure routing
Opis:: This paper deals with the tradeoffs between security, real-time and lifetime performance. Due to the multihop nature of communication wireless ad hoc networks are very vulnerable to attacks. Malicious nodes included in a routing path may misbehave and organize attacks such as black holes. Scaling the number of hops for a packet delivery we trade off energy efficiency against security and real-time communication. To study the multihop communication we propose a hierarchical communication model. The REWARD (receive, watch, redirect) algorithm for secure routing is employed as a main example for corrective actions. Symmetrical routing is a distinguish feature of protocols such as REWARD and we outline the threshold of conflict between power-efficient partitioning of communication links and symmetrical routing.
Źródło:: Journal of Telecommunications and Information Technology; 2009, 2; 13-21
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:: Performance analysis of reactive shortest path and multi-path routing mechanism with load balance
Autorzy:: Pham, P.P.
Perreau, S.
Powiązania:: https://bibliotekanauki.pl/articles/307735.pdf
Data publikacji:: 2003
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: ad hoc networks
load balance
multi-path routing protocol
overheads
Opis:: Research on multi-path routing protocols to provide improved throughput and route resilience as compared with single-path routing has been explored in details in the context of wired networks. However, multi-path routing mechanism has not been explored thoroughly in the domain of ad hoc networks. In this paper, we analyze and compare reactive single-path and multi-path routing with load balance mechanisms in ad hoc networks, in terms of overhead, traffic distribution and connection throughput. The results reveals that in comparison with general single-path routing protocol, multi-path routing mechanism creates more overheads but provides better performance in congestion and capacity, provided that the route length is within a certain upper bound which is derivable. The analytical results are further confirmed by simulation.
Źródło:: Journal of Telecommunications and Information Technology; 2003, 2; 38-47
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:: Security Requirements and Mechanisms in Vehicular Ad-Hoc Networks (VANET)
Autorzy:: Rajkumar, M. Newlin
Nithya, M.
Krithika, M.
Powiązania:: https://bibliotekanauki.pl/articles/1193569.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: ARAN
ARIADNE
Ad-hoc Networks
NDM
SEAD
VANET
Vehicular Ad-hoc Network
mobile Ad-hoc network
Opis:: In recent years, Vehicles are becomes the more intellectual system which is operated with the help of radio communications. Thus the vehicles are formed the network for communications based on the mobile Ad- hoc network (MANET) which is called as Vehicular Ad-hoc Network (VANET). However security in Vehicular Ad-hoc Networks (VANET) should become great challenges, due to communication development, because of dynamically changing protocols, high mobility of vehicles and also high partitioned network. In this paper we address the security requirements of vehicles and needed mechanisms to avoid the threats and attacks in VANET.
Źródło:: World Scientific News; 2016, 41; 200-207
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Zastosowanie technologii symulacji do oceny niezawodności sieci typu ad hoc
Application of simulation technology in reliability evaluation of ad hoc networks
Autorzy:: Yang, Ch.
Zhu., Z.
Huang, W.
Powiązania:: https://bibliotekanauki.pl/articles/301047.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:: sieć ad hoc
symulacja niezawodności
ocena niezawodności
ad hoc networks
reliability simulation
reliability evaluation
Opis:: Ocena niezawodności sieci Ad Hoc przy użyciu technik analitycznych zazwyczaj wymaga wielu założeń. Dlatego też techniki analityczne nie są w stanie uwzględnić wielu czynników stochastycznych charakteryzujących sieci tego typu. Ostatnio symulacja stała się popularnym podejściem do oceny niezawodności sieci Ad Hoc. W niniejszym artykule przedstawiono scenariusze symulacji i omówiono proces projektowania modeli symulacji do oceny niezawodności sieci Ad Hoc. Omówiono również kierunki przyszłych badań.
Reliability evaluation of Ad Hoc networks using analytical techniques usually requires many assumptions. Thus, analytical techniques are unable to consider many stochastic factors of the networks. Simulation has become a popular approach for evaluating the reliability of Ad Hoc networks. This paper introduces simulation scenarios and discusses simulation model design for reliability evaluation of Ad Hoc network. Future research directions are also discussed.
Źródło:: Eksploatacja i Niezawodność; 2010, 2; 27-30
1507-2711
Pojawia się w:: Eksploatacja i Niezawodność
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Comparative Study of Wireless Sensor Networks Energy-Efficient Topologies and Power Save Protocols
Autorzy:: Niewiadomska-Szynkiewicz, E.
Kwaśniewski, P.
Windyga, I.
Powiązania:: https://bibliotekanauki.pl/articles/309032.pdf
Data publikacji:: 2009
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: ad hoc networks
energy conservation protocols
topology control
wireless sensor network
Opis:: Ad hoc networks are the ultimate technology in wireless communication that allow network nodes to communicate without the need for a fixed infrastructure. The paper addresses issues associated with control of data transmission in wireless sensor networks (WSN) - a popular type of ad hoc networks with stationary nodes. Since the WSN nodes are typically battery equipped, the primary design goal is to optimize the amount of energy used for transmission. The energy conservation techniques and algorithms for computing the optimal transmitting ranges in order to generate a network with desired properties while reducing sensors energy consumption are discussed and compared through simulations. We describe a new clustering based approach that utilizes the periodical coordination to reduce the overall energy usage by the network.
Źródło:: Journal of Telecommunications and Information Technology; 2009, 3; 68-75
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Multiobjective Approach to Localization in Wireless Sensor Networks
Autorzy:: Marks, M.
Niewiadomska-Szynkiewicz, E.
Powiązania:: https://bibliotekanauki.pl/articles/309060.pdf
Data publikacji:: 2009
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: ad hoc networks
localization
simulated annealing
stochastic optimization
wireless sensor network
Opis:: Wireless sensor network localization is a complex problem that can be solved using different types of methods and algorithms. Nowadays, it is a popular research topic. What becomes obvious is that there are several criteria which are essential when we consider wireless sensor networks. Our objective is to determine accurate estimates of nodes location under the constraints for hardware cost, energy consumption and computation capabilities. In this paper the application of stochastic optimization for performing localization of nodes is discussed. We describe two phase scheme that uses a combination of the trilateration method, along with the simulated annealing optimization algorithm. We investigate two variants of our technique, i.e., centralized and distributed. The attention is paid to the convergence of our algorithm for different network topologies and trade-off between its efficiency and localization accuracy.
Źródło:: Journal of Telecommunications and Information Technology; 2009, 3; 59-67
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Simulating capture behaviour in 802.11 radio modems
Autorzy:: Ware, C.
Wysocki, T. A.
Chicharo, J.
Powiązania:: https://bibliotekanauki.pl/articles/309552.pdf
Data publikacji:: 2001
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: wireless local area networks
ad hoc networks
capture models
medium access control protocol
fairness
Opis:: Simulation plays an important role in the performance evaluation of MAC protocols. Building simulation models which are able to accurately model physical behaviour is fundamental to the outcome of such techniques. Through both qualitative and quantitative comparison of experimental trace data against simulation results obtained using delay, power, and hybrid capture models, this paper investigates the performance of various packet capture models in the simulation analysis of the 802.11 PHY and MAC layer protocols. We illustrate these models are unable to accurately describe the fairness properties of the experimental data. A new model is proposed, Message Retraining, to describe the operation of an 802.11 receiver. We illustrate that the Message Retraining reception model is able to model the fairness characteristics obtained with an IEEE 802.11 radio modem more accurately than the previous capture models.
Źródło:: Journal of Telecommunications and Information Technology; 2001, 3; 46-54
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Ɵ(1) Time Algorithm for Master Selection in Ad-hoc Wireless Networks
Autorzy:: Khattabi, Mohammed
Elmesbahi, Jelloul
Khaldoun, Mohammed
Errami, Ahmed
Bouattane, Omar
Powiązania:: https://bibliotekanauki.pl/articles/226674.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: cluster-based networks
cluster head selection
ad-hoc networks
wireless sensors networks
SDR
USRP
simulink
Opis:: This paper details a hardware implementation of a distributed Ɵ(1) time algorithm allows to select dynamically the master device in ad-hoc or cluster-based networks in a constant time regardless the number of devices in the same cluster. The algorithm allows each device to automatically detect its own status; master or slave; based on identifier without adding extra overheads or exchanging packets that slow down the network. We propose a baseband design that implements algorithm functions and we detail the hardware implementation using Matlab/Simulink and Ettus B210 USRP. Tests held in laboratory prove that algorithm works as expected.
Źródło:: International Journal of Electronics and Telecommunications; 2020, 66, 3; 521-527
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Self-organizing wireless monitoring system for cargo containers
Autorzy:: Katulski, R. J.
Sadowski, J.
Stefański, J.
Ambroziak, S. J.
Powiązania:: https://bibliotekanauki.pl/articles/258794.pdf
Data publikacji:: 2009
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: wireless monitoring
container transport
container module realization
global system concept
ad-hoc networks
Opis:: This paper presents a description of new global monitoring system for containers with its layer-modular structure, as a solution for enhance security and efficiency of container transport with particular emphasis on the practical implementation of that system for maritime container terminals. Especially the Smart Container Module (SCM) architecture and its operation as a part of the Self-Organizing Container Monitoring Network is presented.
Źródło:: Polish Maritime Research; 2009, 3; 45-50
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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