618 research outputs found

    A new management method for wireless sensor networks

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    International audienceThe Wireless Sensor Networks (WSN) with their constant evolution, need new management methods to be monitored efficiently by taking into account the context and their constraints such as energy consumption, reliability and remote monitoring. WSN has diverse application domains: smart home, smart care, environmental data collection etc. In order to manage a large scale WSN, several Wireless sensor network Management Tools (WMTs) are developed. Some of them use SNMP protocol like because it is impossible to implement the full compliance classical SNMP standard on each wireless sensor node. Therefore, it is important to develop a new WMT with a restricted SNMP standard dedicated to WSN applications. In this paper, we present a new WMT named LiveNCM: LiveNode Non invasive Context-aware, and modular Management tool. LiveNCM is divided into two main parts: one is centralized on the fixed network structure and another one, distributed on each node. Each part introduces the concept of non-invasive context-aware to reduce data exchanges and diagnoses the wireless sensor node state with few messages. Moreover, nodes are based on a configurable modular architecture enables to adapt to an application and to a local node constraints. LiveNCM is implemented on the LiveNode platform to validate the energy consumption and on a UNIX system to validate the adopted SNMP sub-agent. Ultimately, a decreasing data exchange and an improvement in the energy consumption in the entire WSN were observed. An implementation of the proposed management method is presented

    Management system for IPv6-enabled wireless sensor networks

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    “Copyright © [2011] IEEE. Reprinted from Internet of Things (iThings/CPSCom), 2011 International Conference on and 4th International Conference on Cyber, Physical and Social Computing. ISBN 978-1-4577-1976-9 This material is posted here with permission of the IEEE. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.”It is expected that in the near future smart objects will have an Internet connection – this is the Internet of Things vision. Most of these objects compatible with the IEEE 802.15.4 standard are characterized by small size, power constrains, and small computing resources. Connecting such devices to the Internet is considered simultaneously the biggest challenge and a great opportunity for the Internet growth. To achieve the Internet of things vision is necessary to support IPv6 protocol suite in all objects. Supporting IPv6 simplifies, simultaneously, the integration of these objects in the Internet and their management. Actually, despite of the relevance, there are no existing standard solutions to manage smart object networks. Managing this type of networks poses a unique challenge because smart object networks may be comprised of thousands of nodes, are highly dynamic and prone to failures. This paper presents a complete solution to manage smart object networks based on SNMPv1 protocol. The paper also presents the design and deployment of a laboratory testbed

    MANET Network Management and Performance Monitoring for NHDP and OLSRv2

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    Mobile Ad Hoc NETworks (MANETs) are generally thought of as infrastructureless and largely ``un-managed'' network deployments, capable of accommodating highly dynamic network topologies. Yet, while the network infrastructure may be ``un-managed'', monitoring the network performance and setting configuration parameters once deployed, remains important in order to ensure proper ``tuning'' and maintenance of a MANET. This memorandum describes a management framework for the MANET routing protocol OLSRv2, and its constituent protocol NHDP. It does so by presenting considerations for ``what to monitor and manage'' in an OLSRv2 network, and how. The approach developed is based on the Simple Network Management Protocol (SNMP), and thus this paper details the various Management Information Bases (MIBs) for router status monitoring and control -- as well as a novel approach to history-based performance monitoring. While SNMP may not be optimally designed for MANETs, it is chosen due to it being the predominant protocol for IP network management -- and thus, efforts are made in this paper to ``adapt'' the management tools within the SNMP framework for reasonable behavior also in a MANET environment

    Internet protocol over wireless sensor networks, from myth to reality

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    Internet Protocol (IP) is a standard network layer protocol of the Internet architecture, allowing communication among heterogeneous networks. For a given network to be accessible from the Internet it must have a router that complies with this protocol. Wireless sensor networks have many smart sensing nodes with computational, communication and sensing capabilities. Such smart sensors cooperate to gather relevant data and present it to the user. The connection of sensor networks and the Internet has been realized using gateway or proxy- based approaches. Historically, several routing protocols were specifically created, discarding IP. However, recent research, prototypes and even implementation tools show that it is possible to combine the advantages of IP access with sensor networks challenges, with a major contribution from the 6LoWPAN Working Group. This paper presents the advantages and challenges of IP on sensor networks, surveys the state-of-art with some implementation examples, and points further research topics in this area

    Recent advances in industrial wireless sensor networks towards efficient management in IoT

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    With the accelerated development of Internet-of- Things (IoT), wireless sensor networks (WSN) are gaining importance in the continued advancement of information and communication technologies, and have been connected and integrated with Internet in vast industrial applications. However, given the fact that most wireless sensor devices are resource constrained and operate on batteries, the communication overhead and power consumption are therefore important issues for wireless sensor networks design. In order to efficiently manage these wireless sensor devices in a unified manner, the industrial authorities should be able to provide a network infrastructure supporting various WSN applications and services that facilitate the management of sensor-equipped real-world entities. This paper presents an overview of industrial ecosystem, technical architecture, industrial device management standards and our latest research activity in developing a WSN management system. The key approach to enable efficient and reliable management of WSN within such an infrastructure is a cross layer design of lightweight and cloud-based RESTful web service

    Service-oriented wireless sensor networks and an energy-aware mesh routing algorithm

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    Service-oriented wireless sensor networks (WSNs) are being paid more and more attention because service computing can hide complexity of WSNs and enables simple and transparent access to individual sensor nodes. Existing WSNs mainly use IEEE 802.15.4 as their communication specification, however, this protocol suite cannot support IP-based routing and service-oriented access because it only specifies a set of physical- and MAC-layer protocols. For inosculating WSNs with IP networks, IEEE proposed a 6LoWPAN (IPv6 over LoW Power wireless Area Networks) as the adaptation layer between IP and MAC layers. However, it is still a challenging task how to discover and manage sensor resources, guarantee the security of WSNs and route messages over resource-restricted sensor nodes. This paper is set to address such three key issues. Firstly, we propose a service-oriented WSN architectural model based on 6LoWPAN and design a lightweight service middleware SOWAM (service-oriented WSN architecture middleware), where each sensor node provides a collection of services and is managed by our SOWAM. Secondly, we develop a security mechanism for the authentication and secure connection among users and sensor nodes. Finally, we propose an energyaware mesh routing protocol (EAMR) for message transmission in a WSN with multiple mobile sinks, aiming at prolonging the lifetime of WSNs as long as possible. In our EAMR, sensor nodes with the residual energy lower than a threshold do not forward messages for other nodes until the threshold is leveled down. As a result, the energy consumption is evened over sensor nodes significantly. The experimental results demonstrate the feasibility of our service-oriented approach and lightweight middleware SOWAM, as well as the effectiveness of our routing algorithm EAMR.<br /

    STUDI LITERATUR MONITORING MANAJEMEN JARINGAN INTERNET DENGAN KONSEP SNMP TERHADAP AKSES SISWA

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    Perkembangan teknologi pada akhir-akhir ini semakin pesat dengan bertambahnya waktu juga disusul dengan perkembangan internet yang semakin canggih, sekolah adalah salah satu instansi yang ikut serta dalam perkembangnan teknologi tersebut salah satu diantaranya yaitu dalam memanfaatkan jaringan internet untuk keperluan kegiatan belajar, internet bisa dikatakan kebutuhan primer pada saat ini, tidak bisa dipungkiri sumber belajar di internet jauh lebih lengkap dari pada buku pegangan siswa, dalam menanggapi hal tersebut untuk menjaga supaya jaringan internet stabil, aman dan sesuai kebutuhan maka diperlukan penataan sistem jaringan yang memungkinkan. Pemantauan lalu lintas jaringan sangat penting dilakukan agar masalah yang terjadi dapat ditangani secara efektif, untuk itu diperlukan sistem monitoring jaringan, manfaat yang dapat dirasakan yaitu melihat perkembangan dan mendeteksi perubahan secara real-time jika terjadi kesalahan pada jaringan. Monitoring termasuk dalam manajemen jaringan. SNMP (Simple Network Management Protocol) merupakan sebuah protokol dalam memberikan kemampuan pengumpulan data manajemen perangkat jaringan dari jarak jauh atau diremote. Untuk menerapkan konsep SNMP (Simple Network Management Protocol) pada lingkungan sekolah dan berdampak langsung efek untuk keperluan kegiatan belajar dengan memantau dan membatasi akses internet siswa, aturan yang digunakan untuk user siswa dengan membuat proses penggunaan internet dilaboratorium diberikan limit sesuai kebutuhan dan bisa dimanfaatkan secara efektif untuk kegiatan belajar. Hasil dari studi literatur ini guru dapat memantau proses pembelajaran di laboratorium dengan melihat penelusuran yang dicari diinternet dan juga dapat mengambil atau mendownload laporan dari hasil monitoring sebagai bahan tambahan nilai yang sering aktif mencari materi pada saat pembelajaran berlangsung dengan dibuktikan secara realtime terdapat waktu, ip address dan nama siswa saat login

    QoS management and control for an all-IP WiMAX network architecture: Design, implementation and evaluation

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    The IEEE 802.16 standard provides a specification for a fixed and mobile broadband wireless access system, offering high data rate transmission of multimedia services with different Quality-of-Service (QoS) requirements through the air interface. The WiMAX Forum, going beyond the air interface, defined an end-to-end WiMAX network architecture, based on an all-IP platform in order to complete the standards required for a commercial rollout of WiMAX as broadband wireless access solution. As the WiMAX network architecture is only a functional specification, this paper focuses on an innovative solution for an end-to-end WiMAX network architecture offering in compliance with the WiMAX Forum specification. To our best knowledge, this is the first WiMAX architecture built by a research consortium globally and was performed within the framework of the European IST project WEIRD (WiMAX Extension to Isolated Research Data networks). One of the principal features of our architecture is support for end-to-end QoS achieved by the integration of resource control in the WiMAX wireless link and the resource management in the wired domains in the network core. In this paper we present the architectural design of these QoS features in the overall WiMAX all-IP framework and their functional as well as performance evaluation. The presented results can safely be considered as unique and timely for any WiMAX system integrator

    A heterogeneous network management approach to wireless sensor networks in personal healthcare environments

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    University of Technology, Sydney. Faculty of Science.Many countries are facing problems caused by a rapid surge in numbers of people over sixty-five. This aging population cohort will place a strain on the existing health systems because the elderly are prone to falls, chronic illnesses, dementia and general frailty. At the same time governments are struggling to attract more people into the health systems and there are already shortages of qualified nurses and care givers. This thesis represents a multi disciplinary approach to trying to solve some of the above issues. In the first instance the researcher has established the validity of the health crisis and then examined ways in which Information Technology could help to alleviate some of the issues. The nascent technology called Wireless Sensor Networks was examined as a way of providing remote health monitoring for the elderly, the infirm and the ill. The researcher postulated that Network Management models and tools that are used to monitor huge networks of computers could be adapted to monitor the health of persons in their own homes, in aged care facilities and hospitals. Wireless Sensor Network (WNS) Personal Healthcare can monitor such vital signs as a patient’s temperature, heart rate and blood oxygen level. WSNs (often referred to as Motes) use wireless transceivers that can do remote sensing. The researcher aimed to assist all stakeholders in the personal healthcare arena to use WSNs to improve monitoring. The researcher provided a solution architecture and framework for healthcare sensor monitoring systems, based on network management techniques. This architecture generalises to heterogeneous and autonomous data acquisition systems. Future directions from this research point towards new areas of knowledge from the development or creation of new technologies to support the exponential growth of ubiquitous, just-in-time WSN health informational services and applications such as the preventive and proactive personal care health management and services around it. The affordable and ubiquitous distributed access to remote personal health care technologies in the future could have an important impact in the society, by allowing the individuals to take immediate preventive actions over their overall health condition. These systems could potentially prevent death as well as improve national health budgets by limiting costly medical interventions that could have been avoided by individual, easy-action early prevention
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