Description: 基于T i n y O S 的无线传感器网络体系结构
无线传感器网络WSN(Wireless Sensor Network) 由部署在监测区域内大量廉价的传感器节点组成,通过
无线通信方式形成multi2hop 自组织的网络系统,其目的是协作地感知、采集和处理网络覆盖区域中感知
对象的信息,并发送给观察者。本文从分析无线传感器节点Mica 和其上运行的操作系统TinyOS 出发,
着重描述无线传感器网络节点应用程序体系结构和消息通信机制。
-T iny OS-based wireless sensor network architecture, wireless sensor networks WSN (Wireless Sensor Network) deployed in the region to monitor a large number of low-cost sensor nodes through wireless communications multi2hop formed self-organized network system with the aim of collaboration to Perception, collection and processing network coverage area perceptual object information, and send observers. This article from the analysis of wireless sensor nodes Mica and its running on TinyOS operating system, the focus on wireless sensor network nodes to describe the application architecture and message communication mechanism. Platform: |
Size: 346112 |
Author:ge |
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Description: Power consumption is an important design criterion in
the design of wireless sensor networks. Hybrid radio
frequency/free space optical wireless sensor networks (RF/FSO
WSN) have been proposed to reduce the energy consumption of
traditional RF-based sensor networks. This paper compares the
performance of such a hybrid sensor network against the wellknown
RF-based low energy adapting clustering hierarchy
(LEACH) WSN proposed in the literature. Network performance
is studied in terms of network lifetime and average network area
coverage. Simulations show that despite not employing data
aggregation, the RF/FSO WSN has a longer lifetime and larger
average network coverage when compared to the LEACH WSN Platform: |
Size: 631808 |
Author:serag |
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Description: 关于现有的基于WLAN，蓝牙以及RFID等的定位算法的综述和系统比较。是content-aware下的新兴的应用领域，有很大发展空间-Location, Localization, and Localizability
Location-aware technology spawns numerous unforeseen pervasive applications in a wide range of living, pro-
duction, commence, and public services. This article provides an overview of the location, localization, and localizability
issues of wireless ad-hoc and sensor networks. Making data geographically meaningful, location information is essential for
many applications, and it deeply aids a number of network functions, such as network routing, topology control, coverage,
boundary detection, clustering, etc. We investigate a large body of existing localization approaches with focuses on error
control and network localizability, the two rising aspects that attract signi¯ cant research interests in recent years. Error
control aims to alleviate the negative impact of noisy ranging measurement and the error accumulation e® ect during coope-
rative localization process. Network localizability provides theoretical analysis on the per Platform: |
Size: 7166976 |
Author:xuchen |
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Description: 水下无线传感器网络的研究和设计
无线传感器网络是由大量节点形成的一种特殊Ad-hoc网络，其目的是协作地
感知、采集和处理网络覆盖的区域中感知对象的信息，并发送给观测者。而水下
无线传感器网络是无线传感器网络中的一种，两者有着不少共同的特征，同时由
于水下信道条件的制约，陆地上的一些重要技术又不能直接应用于水下。本章将
首先介绍无线传感器网络的体系结构及节点组成，然后再具体讨论水下无线传感
器网络的特点、面临的问题及技术难度。
-Underwater wireless sensor network research and design of wireless sensor network is formed by the large number of nodes in a special Ad-hoc network, which aims to collaborate perception, acquisition and processing of network coverage area in the perception of objects, and send observations persons. The underwater wireless sensor network is a wireless sensor network, the two have many common characteristics, and because of the underwater channel conditions, some of the important land can not be directly applied to underwater technology. This chapter will first introduce the architecture of wireless sensor networks and nodes, and then discuss the specific characteristics of underwater wireless sensor networks, the problems and technical difficulties. Platform: |
Size: 1319936 |
Author:Tr |
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Description: In-Network Data Reduction and Coverage-Based Mechanisms for Generating Association Rules in Wireless Sensor Networks Platform: |
Size: 523264 |
Author:alferedbin |
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Description: “Coverage Control in Sensor Networks”，这本书是比较新的，是无线传感器网络覆盖国内外研究的总结，讲的很详细。-“Coverage Control in Sensor networks”,This book is a relatively new wireless sensor network coverage summary of the research, talk in great detail. Platform: |
Size: 4602880 |
Author:Junpeng Li |
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Description: In this paper, we address a new unexplored problem
- what are the optimal patterns to achieve connected coverage in
wireless networks with directional antennas. As their name implies,
directional antennas can focus their transmission energy in
a certain direction. This feature leads to lower cross-interference
and larger communication distance. It has been shown that with
proper scheduling mechanisms, directional antennas may substantially
improve networking performance in wireless networks.
In this paper, we propose a set of optimal patterns to achieve
full coverage and global connectivity under two different antenna
models, i.e., the sector model and the knob model. We also
introduce with detailed analysis several fundamental theorems
and conjectures. Finally, we examine a more realistic sensor
model, where sensing range and communication range may both
vary randomly. Results show that our designed patterns work
well even in unstable and fickle physical environment. Platform: |
Size: 1462272 |
Author:fahim68 |
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Description: Mobile wireless sensor networks (MWSNs) have recently launched a growing popular class of WSN in which mobility plays a key
role in the execution of the application. In recent years, mobility has become an important area of research for the WSN community. The
increasing capabilities and the decreasing costs of mobile sensors make mobile sensor networks possible and practical. Although WSN deployments
were never envisioned to be fully static, mobility was initially regarded as having several challenges that needed to be overcome,
including connectivity, coverage, and energy consumption, among others.However, recent studies have been showing mobility in a more
favorable light. In this article, an overview of proposals that evaluate mobile communication in WSNs is presented. Platform: |
Size: 195584 |
Author:Fatma |
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Description: Power control, broadly speaking, is the intelligent selection of transmitter power output in a communication system to achieve good performance within the system. The notion of good performance can depend on context and may include optimizing metrics such as link data rate, network capacity, geographic coverage and range, and life of the network and network devices. Power control algorithms are used in many contexts, including cellular networks, sensor networks, wireless LANs, and DSL modems.-Power control, broadly speaking, is the intelligent selection of transmitter power output in a communication system to achieve good performance within the system. The notion of good performance can depend on context and may include optimizing metrics such as link data rate, network capacity, geographic coverage and range, and life of the network and network devices. Power control algorithms are used in many contexts, including cellular networks, sensor networks, wireless LANs, and DSL modems. Platform: |
Size: 4096 |
Author:Abdullah |
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Description: Wireless sensor networks (WSN) have attached a great attention in the last few years. WSN
offer several advantages over the traditional sensor networks, such as elimination of costly
wires, security and larger area coverage. In the last few years, there has been great interest
commercial applications based on Ultra Wideband (UWB). It has potentially low complexity,
low cost and an excellent time domain resolution which facilitates location and tracking
applications. Platform: |
Size: 1150976 |
Author:ShAzZ |
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Description: 多传感器分配是传感器网应用过程中的一个关键问题，文章对多种方法进行了分析比较，指出了各种方法的优缺点及适用场合，值得借鉴-Sensor deployment is a fundamental issue in sensor
networks. Studies on the deployment problem are concentrated
on deploying sensors to cover assigned areas or set ofpoints
efficiently. In this paper, we discuss the sensor deployment
problem in the conte-xt of target tracking. Firstly, we propose a
sensor deployment optimization strategy based on Target
Involved Virtual Force Algorithm (TIVFA). The TIVFA
algorithm can dynamically adjust sensor networks configuration
according to terrains, intelligence and those detected
maneuvering targets in order to improve coverage and detection
probability. Secondly, we present an improved sensor-ranking
algorithm as well as a sensor protecting strategy with targets
importance sequence in consideration. The 7TVFA algorithm,
together with the sensor protecting strategy, can produce an
efficient and robust sensor network. Experiment results
sufficiently demonstrate the effectiveness of the proposed
approach. Platform: |
Size: 3677184 |
Author:刘洋 |
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Search - coverage in sensor networks