检索结果-内蒙古大学图书馆

3rd ieee international conference on Cloud computing and Big Data Analysis (ICCCBDA)

作者： Lan, Su Beijing SmartChip Microelect Co Ltd Beijing 102200 Peoples R China

ISBN: (纸本)9781538643013

At present, most of the traditional micro-grid communication systems are based on Ethernet or bus to complete, but the micro-grid system has many devices and the need for great flexibility, at any time there are points out of the characteristics. Considering the safety and reliability of power network communication, it is generally a point-to-multipoint technology, which has a flexible communication structure. Therefore, this paper puts forward the advantages of wireless and carrier fusion communication, which can realize the advantages of plug and play. Secure access problem of distributed power supply.

关键词： dual-mode microgrid carrier wireless

来源：评论

学校读者我要写书评

暂无评论

Smart-Hop: Low-Latency Multi-hop Networking for LoRa 18

Smart-Hop: Low-Latency Multi-hop Networking for LoRa

引用

18th Annual international conference on distributed computing in sensor systems (DCOSS)

作者： Ahmar, Absar-Ul-Haque Joosen, Wouter Hughes, Danny Katholieke Univ Leuven Comp Sci Imec DistriNet Leuven Belgium

ISBN: (纸本)9781665495127

Low Power Wide Area Networks (LPWANs) provide the Internet of Things (IoT) with energy-efficient, low cost, and long-range networking. LoRaWAN is one of the most widely deployed and studied LPWAN technologies due to its license-free operation and open standard, which has enabled 3rd parties to deploy millions of networks worldwide. LoRa allows transmission range and speed to be traded off by configuring the Spreading Factor (SF) setting. By tuning this parameter, the performance envelope of the network can be configured to favor a higher speed or longer range. While the SF of LoRA provides a simple and elegant means to tailor performance, at the highest spreading factor, maximum throughput drops to a few bits per second, dramatically increasing data extraction times. In this paper, we address this problem by proposing Smart-Hop, a novel multi-hop MAC layer protocol for LoRa which implements low-overhead routing. In contrast to prior work, Smart-Hop exploits the variable range afforded by different SFs to eliminate much of the complexity and overhead of traditional multi-hop mesh networking. Smart-Hop reduces the number of end-devices operating at high SFs while implementing low overhead routing in order to reduce data extraction times. These improvements are achieved while preserving the maximum range offered by LoRa in its highest SF configuration.

关键词： Low Power Wide Area Networks (LPWAN) LoRa Spreading Factor (SF) allocation Wireless sensor Networks (WSN) mesh networking.

来源：评论

学校读者我要写书评

暂无评论

A Cost Efficient Design of a Multi-Sink Multi-Controller WSN in a Smart Factory 19

A Cost Efficient Design of a Multi-Sink Multi-Controller WSN...

引用

19th ieee international conference on High Performance computing and Communications (HPCC) / 15th ieee international conference on Smart City (SmartCity) / 3rd ieee international conference on Data Science and systems (DSS)

作者： Faragardi, Hamid Reza Fotouhi, Hossein Nolte, Thomas Rahmani, Rahim Malardalen Univ MRTC POB 883 SE-72123 Vasteras Sweden Stockholm Univ Stockholm Sweden

ISBN: (纸本)9781538625880

Internet of Things (IoT), one of the key elements of a smart factory, is dubbed as Industrial IoT (IIoT). Software defined networking is a technique that benefits network management in IIoT applications by providing network reconfigurability. In this way, controllers are integrated within the network to advertise routing rules dynamically based on network and link changes. We consider controllers within Wireless sensor Networks (WSNs) for IIoT applications in such a way to provide reliability and timeliness. Network reliability is addressed for the case of node failure by considering multiple sinks and multiple controllers. Real-time requirements are implicitly applied by limiting the number of hops (maximum path-length) between sensors and sinks/controllers, and by confining the maximum workload on each sink/controller. Deployment planning of sinks should ensure that when a sink or controller fails, the network is still connected. In this paper, we target the challenge of placement of multiple sinks and controllers, while ensuring that each sensor node is covered by multiple sinks (k sinks) and multiple controllers (k' controllers). We evaluate the proposed algorithm using the benchmark GRASP-MSP through extensive experiments, and show that our approach outperforms the benchmark by lowering the total deployment cost by up to 24%. The reduction of the total deployment cost is fulfilled not only as the result of decreasing the number of required sinks and controllers but also selecting cost-effective sinks/controllers among all candidate sinks/controllers.

关键词： Industrial Internet of Things wireless sensor networks software defined networking cloud computing fog computing

来源：评论

学校读者我要写书评

暂无评论

Energy-Efficient Protocol for Extending Battery Life in Wireless sensor Networks

Energy-Efficient Protocol for Extending Battery Life in Wire...

引用

33rd ieee international conference on distributed computing systems (ICDCS)

作者： Zhao, Qian Nakamoto, Yukikazu Hussin, Zulfazli Univ Hyogo Grad Sch Appl Informat Kobe Hyogo 6500047 Japan

ISBN: (纸本)9781479932474;9780769550237

Although wireless sensor networks (WSNs) are becoming ubiquitous, the large amount of power consumed by wireless communications in transmitting sensing data from sensors to base stations or between sensor nodes themselves has become a critical problem. Since most sensor nodes are powered by batteries, we need to be more energy efficient to improve our ability to maintain them. As it is well-known that long communication distances between sensor nodes and base stations make WSNs consume more power as well as large amounts of sensing data, we propose a new energy-efficient wireless communication protocol called threshold controlled hierarchical routing (TCHR) to reduce the cost of wireless communication by reducing the communication distance in WSNs which the topology is considered closer to reality. We simulated our proposed protocol, and the simulation results demonstrated that the life of a WSN could be extended approximately 6 times longer than that with the direct data transmission protocol.

关键词： WSN sensor node energy-efficient wireless communication protocol location measurement model

来源：评论

学校读者我要写书评

暂无评论

distributed Dual Beamforming for Randomly distributed sensors using LS Estimation

Distributed Dual Beamforming for Randomly Distributed Sensor...

引用

3rd ieee international Advance computing conference (IACC)

作者： Vaikundam, G. Sudha, G. F. Pondicherry Engn Coll Dept Elect & Commun Engn Pondicherry 605014 India

ISBN: (纸本)9781467345286

Beam forming is being used in sensor networks to enhance it communication range. Dual beam can be formed from two sets of sensors array wherein each set forming beam pattern in different direction. When same data need to be transmitted to two different directions, one set of sensors array can be used to form dual beam. The random distribution of sensors causes the beam pattern deviation. The random distribution has been modeled as uniform and Gaussian variables. A compensation technique to reduce the errors has been proposed in this paper. It has been modeled as joint optimization problem and solved by LS estimation method. This above technique has been applied to various geometry such as Uniform Linear Array(ULA) Uniform Circular Array (UCA), Uniform Elliptical Array(UEA) and Uniform Planar Rectangular Array(UPRA) with random perturbation and it is observed that dual beamforming from single set of array has efficient distribution of energy and also enhanced data transmission rate.

关键词： distributed beam forming LS estimation for beamforming Dual beamformings sensor Networks for beamforming joint optimization for beamforming

来源：评论

学校读者我要写书评

暂无评论

SA-MAC: Self-stabilizing Adaptive MAC Protocol for Wireless sensor Networks

SA-MAC: Self-stabilizing Adaptive MAC Protocol for Wireless ...

引用

33rd ieee international conference on distributed computing systems (ICDCS)

作者： Bo, Cheng Li, Xiang-Yang Tao, Yue Teymour, Fouad Anderson, Paul Ren, ShangPing IIT Chicago IL 60616 USA

ISBN: (纸本)9781479932474;9780769550237

A common method of prolonging the lifetime of wireless sensor networks is to use low power duty cycling protocol. Existing protocols consist of two categories: sender-initiated, and receiver-initiated. In this paper, we present SA-MAC, a Self-stabilizing Adaptive MAC protocol for wireless sensor networks. SA-MAC dynamically adjusts the transmission time-slot, waking up time-slot, and packet detection patten according to current network working condition, such as packet length and wake-up patterns of neighboring nodes. In the long run, every sensor node will find its own transmission phase so that the network will enter a stable stage when the network load and qualities are static. We conduct extensive experiments to evaluate the energy consumption, packet reception rate of SA-MAC in real sensor networking systems. Our results indicate that SA-MAC outperforms other existing protocols.

关键词： Duty Cycling Protocol sender-initiated receiver-initiated SA-MAC

来源：评论

学校读者我要写书评

暂无评论

Firefly Algorithm Approach for Localization in Wireless sensor Networks 3rd

引用

3rd international conference on Advanced computing, Networking, and Informatics (ICACNI)

作者： Harikrishnan, R. Kumar, V. Jawahar Senthil Ponmalar, P. Sridevi Sathyabama Univ Madras Tamil Nadu India Anna Univ CEG Madras 600025 Tamil Nadu India

ISBN: (纸本)9788132225294;9788132225287

Development of sensor technology has led to low power, low cost and small sized distributed wireless sensor networks (WSN). The self organizable and distributed characteristics of wireless sensor networks had made it for monitoring and control applications at home and other environment. In most of these applications location information plays a crucial role in increasing the performance and reliability of the network. This paper makes an attempt in analyzing and implementation of a novel nature based algorithm known as firefly localization algorithm. This is a distributed algorithm which uses range based trilateration method for distance measurement required for estimating the location of the sensor node. The algorithm is simple to implement and has better convergence and accuracy.

关键词： Firefly localization algorithm WSN Biological inspired algorithm Landmark node sensor node Firefly Attractiveness Brightness

来源：评论

学校读者我要写书评

暂无评论

distributed Multi-Hop Network Association in Large-Scale Wireless sensor Networks

Distributed Multi-Hop Network Association in Large-Scale Wir...

引用

33rd ieee international conference on distributed computing systems (ICDCS)

作者： Kim, Hyung-Sin Bang, Jae-Seok Lee, Yong-Hwan Seoul Natl Univ Sch Elect Engn Seoul South Korea Seoul Natl Univ INMC Seoul South Korea

ISBN: (纸本)9781479932474;9780769550237

In this paper, we consider the construction of a large scale wireless sensor network (WSN) by means of distributed network association with scalability. We design a network association mechanism that allows each router to have its own addressing space for unique addressing of its child nodes based on a pre-initialized addressing tree. We also design a device selection algorithm that can locate routers throughout the whole deployment area using a minimum number of routers (i.e., minimizing the energy consumption). Thus, nodes can securely join the network through a sufficient number of neighboring routers, with the use of a uniquely allocated address in a distributed manner. Finally, the performance of the proposed scheme is evaluated by computer simulation, showing remarkable performance improvement over conventional schemes when applied to the construction of a large scale WSN.

关键词： wireless sensor network network association address allocation distributed operation energy consumption

来源：评论

学校读者我要写书评

暂无评论

Dynamic Detection of Clone Attack in Wireless sensor Networks

Dynamic Detection of Clone Attack in Wireless Sensor Network...

引用

3rd international conference on Communication systems and Network Technologies (CSNT)

作者： Sathish, R. Kumar, D. Rajesh Bannari Amman Inst Technol Dept Informat Technol Sathyamangalam India

ISBN: (纸本)9780769549583;9781467356039

Wireless sensor Networks (WSNs) is considered to be one of the promising technologies for ubiquitous computing environment. Enabling secure communication in among the nodes in a sensor network is a risky task. It is found that WSNs are prone to clone attacks that lead to many devastating effects. In clone attack, an attacker initially captures a node in the network and reprograms the node. In the later stage the adversary replicates the reprogrammed node and spread throughout the network for taking control over the network. There are few distributed solutions available for this problem. But the issues related to energy and memory demanding in any WSN protocol makes these solutions ineffective. In order to overcome these drawbacks, a lightweight, fast, efficient and mobile agent based security solution against cloning attack or replication attack is been proposed for WSNs.

关键词： Clone attack Mobile agent replication attack Ubiquitous computing Wireless sensor Networks (WSNs)

来源：评论

学校读者我要写书评

暂无评论

Modeling detection latency with collaborative mobile sensing architecture

引用

ieee Transactions on Computers 2009年第5期58卷 692-705页

作者： Chin, Tai-Lin Parameswaran, Ramanathan Saluja, Kewal K. Department of Computer Science and Information Engineering National Taiwan University of Science and Technology 43 Sec. 4 Keelung Rd. Taipei 106 Taiwan Department of Electrical and Computer Engineering University of Wisconsin-Madison 1415 Engineering Drive Madison WI 53706-1691 United States

Detection latency, which is defined as the time from the target arrival to the time of the first detection, is an important metric for the performance of sensor networks carrying out target detection, especially when the target is malicious or hostile. It characterizes the efficiency of detecting the presence of a target in a region of interest. Traditionally, stationary sensor networks are used to perform such sensing tasks. Consequently, nearly all research literature for the target detection problem has focused on stationary sensor networks. This paper addresses the problem of detecting the presence/absence of a target using a mobile sensor network. An analytic method is proposed to model the detection latency based on a collaborative sensing architecture. Detection latency for different node mobility models is presented. The accuracy of the analytic model is verified by simulations. This paper also compares the performance of mobile and stationary sensor networks. The comparison shows that if the target is present at the worst possible location in a given deployment, then detection latency of mobile sensor networks is considerably shorter as compared to that of stationary networks with the same number of nodes. © 2009 ieee.

关键词： Analytical models

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：