A decentralized architecture for active sensor networks pdf

Decentralized data fusion and active sensing with mobile. To date, the majority of smart sensor research has focused on emulation of traditional wired sensor networks employing centralized data acquisition and processing see figure 1. Due to the significant risk posed to public safety by infrastructure ageing and deterioration, infrastructure health monitoring has been drawing. Decentralized and distributed control introduction.

Decentralized closing ranks in vehicle formations and sensor networks tyler h. Citeseerx document details isaac councill, lee giles, pradeep teregowda. An example of decentralized target tracking is provided. Sensor networks communication strategies follow on an introduction to sensor networks network architectures distributed estimation an introduction to sensor networks in recent years, great attention has been devoted to multisensor data fusion for both military and civilian applications. The algorithms are described in the context of the active sensor network architecturea modular framework for decentralized cooperative information fusion and decision making. Autonomous decentralized system identification by markov.

Rather than manually tuning sensor resource usage, sora defines a virtual market in which nodes sell goods such as sensor readings or data aggregates in response to prices that are established by the programmer. Decentralized closing ranks in vehicle formations and. Decentralized strategies for monitoring structures using. The architecture specifies a small set of interfaces sufficient to implement a wide range of information. While each sensor node selfishly optimizes its own utility, the. Distributed computing architecture dca is proposed in 19. Decentralized data fusion and control in active sensor networks. Burdick california institute of technology pasadena, ca 91125 abstract in this paper we characterize the impact of imperfect com. Asynchronous algorithm, big data, decentralized learning, sensor network. Introduction in this paper we consider the problem of maintaining connectivity in mobile sensor networks. Anderson the australian national university and national ict australia, canberra, australia abstractin this paper, we present recent results on the closing ranks problem in vehicle formations and sensor networks. Us8924536b1 distributed and decentralized location aware.

This paper presents a novel decentralized data fusion and. A selfmanaged architecture for sensor networks based on real. Decentralized data aggregation approaches can be placed in two broad categories. This work describes a comprehensive framework called active sensor network asn which addresses the tasks of information fusion, decistion making, system configuration, and user interaction. A decentralized architecture for active sensor networks abstract. Sensor networks, clustering algorithm, network management, routing protocols, wireless networking, network topology control, wireless adhoc networks. Such approaches are not scalable due to the enormous amount of data that must be transferred using wireless communication.

Here, each sensor plans its own motion and communicates with other sensors within a limited range. Communication and sensing tradeoffs in decentralized mobile sensor networks. Block diagram of clustered sensor network with decentralized binary detection and two decision levels. Introduction structural health monitoring shm is a promising technique to determine. We study certain twomessage feedback architectures, in which every sensor sends two messages to a fusion center, with the second message based on full or. A decentralized architecture for active sensor networks 2004. Both numerical simulation and experimental results show that decentralized wireless control is viable for future structural control systems. Breakdown of active and idle power consumption for mica hardware components at 3v. In this paper, we advocate a systematic decentralized approach towards the design of such networks based on utility functions.

The paper presents a decentralized approach to the solution of the distributed information gathering problem. Decentralized control has been studied since the 70s, mainly for linear and unconstrained systems recent renowned interest triggered by advances in technology and telecommunications i sensor networks that enable the monitoring and control of processes spread over large geographical areas i smart actuators with onboard communication and. Decentralized estimation and control of graph connectivity in. A uc berkeley project to monitor the golden gate bridge 1517 is considered to be the largest deployment of wireless sensor networks for shm purposes. Wireless sensor networks consist of energyconstrained sensor nodes operating unattended in highly dynamic environments. Finally, in chapter 4, which is the novel part of this project, we will propose a gossipbased method for decentralized detection. It has very high data rates 100 mbs, which makes it suitable for so.

Data fusion techniques combine data from multiple sensors and. Decentralized detection in wireless sensor networks. Decentralized strategies for monitoring structures using wireless smart sensor networks. In the area of sensor networks, wisden 26,35 provides services for reliable multihop transmission of raw sensor data, using runlength encoding to compress the data before transmission.

Wireless sensor networks consist of small nodes which are capable of sensing, computation, and communication. Computer science, national university of singaporey singaporemit alliance for research and technologyx republic of singapore. Decentralized detection in resourcelimited sensor network. The algorithms are described in the context of the active sensor network architecture a modular framework for decentralized cooperative information fusion and decision making. In this paper we consider the problem of maintaining connectivity in mobile sensor networks. In such type of networks, data aggregation has to be. Pdf the paper presents a decentralized approach to the solution of the distributed information gathering problem. We present a decentralized key management architecture for wireless sensor networks, covering the aspects of key deployment, key refreshment and key establishment. A holistic approach to decentralized structural damage. Law4, kungchun lu5, chinhsiung loh6 abstract substantial research studies have been.

Decentralized, adaptive resource allocation for sensor. We consider the decentralized binary hypothesis testing problem in networks with feedback, where some or all of the sensors have access to compressed summaries of other sensors observations. A selfmanaged architecture for sensor networks based on. Provided is a distributed and decentralized locationaware system. We present selforganizing resource allocation sora, a new approach for achieving efficient resource allocation in sensor networks. The architecture specifies a small set of interfaces sufficient to implement a wide range. The system includes a number of peers, each in communication with other peers and adapted to communicate ping, pong, and alert messages. Centralized architecture an overview sciencedirect topics. A holistic approach to decentralized structural damage localization using wireless sensor networks gregory hackmanna, fei sun a, nestor castanedab, chenyang lu, shirley dykec awashington university in st. A decentralized and scriptable middleware for smart energy buildings pandarasamy arjunan. Our architecture is based on a clear set of assumptions and guidelines.

A promising approach is given by the fire y protocol. Control algorithms are embedded in a wireless sensor prototype designed for use in a structural control system. Apr 28, 2006 wireless sensor networks consist of energyconstrained sensor nodes operating unattended in highly dynamic environments. Decentralized detection in sensor network architectures. Decentralized synchronization for wireless sensor networks due to their heavy restrictions on the hardware side, wireless sensor networks wsn require specially adapted synchronization protocols to maximize measurement precision and minimize computation e orts and energy costs. Wireless sensor network wsn refers to a group of spatially dispersed and dedicated sensors for monitoring and recording the physical conditions of the environment and organizing the collected data at a central location. Stating the algorithms in bayesian terms has a practical advantage of allowing a generic software implementation. Multiscale wireless sensor networks for structural health. Decentralized data fusion, decentralized control, sensor networks, mobile robots. Realtime multimedia processing in video sensor networks.

The typical architecture of a sensor node used in wireless sensor networks wsns. Communication and sensing tradeoffs in decentralized. Chapter 10 decentralized infrastructure health monitoring. Video sensor networks vsns has become the recent research focus due to the rich information it provides to address.

A decentralized architecture for active sensor networks core. Decentralized bayesian algorithms for active sensor networks. A selfmanaged architecture for sensor networks based on real time data analysis gabriel martins dias, toni adame, boris bellalta and simon oechsner department of information and communication technologies universitat pompeu fabra, barcelona, spain email. Decentralized estimation and control of graph connectivity in mobile. Asynchronous broadcastbased decentralized learning in sensor. These networks are subject of two kinds of constraints. A wireless sensor network wsn is a group of spatially dispersed sensor. A decentralized architecture based on cooperative dynamic. Decentralized civil structural control using realtime wireless sensing and embedded computing yang wang a, r.

In most distributed systems, naming of nodes for lowlevel com munication leverages. The decentralized architecture of wireless sensor network, there is no single centralized node that makes. Communication and sensing tradeoffs in decentralized mobile. Decentralized, adaptive resource allocation for sensor networks. We propose a partially decentralized active sensing algorithm that overcomes these issues of scalability section 4. Decentralized detection in sensor network architectures with feedback by spyridon ilias zoumpoulis submitted to the department of electrical engineering and computer science on may 22, 2009, in partial ful llment of the requirements for the degree of master of engineering in electrical engineering and computer science abstract we investigate a.

An adaptive communication architecture for wireless sensor. The initial goal of a sensing system is to detect the events of interest. Also provided is a method of communication between two peers in the system. A formally verified decentralized key management architecture. A local utility function is defined for each sensor node in the network. Building efficient wireless sensor networks with lowlevel. A decentralized architecture for active sensor networks ieee xplore.

Asynchronous broadcastbased decentralized learning in. Wsns measure environmental conditions like temperature, sound, pollution levels, humidity, wind, and so on. Decentralized sensor selection based on the distributed. A decentralized architecture for active sensor networks april 2004 proceedings ieee international conference on robotics and automation 22.

Decentralized, adaptive resource allocation for sensor networks geoffrey mainland, david c. Decentralized detection in clustered sensor networks. In this project, we study decentralized detection in sensor networks. Architecture software architecture how software components are organized, how software components interact system architecture instantiation and placement of software components on real machines centralized architecture, clientserver system decentralized architecture, peertopeer system hybrid architecture 2. In stark contrast, the computing environment offered by wireless sensor networks is highly decentralized with a large. The paper proposes a dpcrlbbased observation node selection procedure for decentralized sensor networks.

The value of feedback for decentralized detection in large. Decentralized data fusion and active sensing with mobile sensors for modeling and predicting spatiotemporal traf. System architecture for wireless sensor networks berkeley cs. Pdf a decentralized architecture for active sensor networks. The approach is illustrated with the results of two deployment scenarios with an indoor sensor network. Alex brooks, stefan williams and hugh durrantwhyte. Autonomous decentralized system identification by markov parameter estimation using distributed smart wireless sensor networks junhee kim1 and jerome p. By alexei makarenko, alex brooks, stefan williams and hugh durrantwhyte. Flat networks plays very important role in wireless sensor network, in which each sensor node have a equal battery power and plays the same type of role in a network. Decentralized civil structural control using realtime.

The main design objectives are scalability with the number of robotic platforms, maximum flexibility in implementation and deployment, and robustness to. An energyefficient decentralized clustering protocol for. These are similar to wireless ad hoc networks in the. The centralized wired monitoring system architecture is often defined by a small number of computing nodes i. Agentbased decentralised coordination for sensor networks using the maxsum algorithm, autonomous agents and multiagent systems, 283. Chapter 10 decentralized infrastructure health monitoring using embedded computing in wireless sensor networks kosmas dragos1 and kay smarsly2 abstract. Decentralized synchronization for wireless sensor networks. Although lte is a centralized architecture similar to previous generations of cellular radio network systems and does not have a native ad hoc mode such as ieee 802. A decentralized architecture for active sensor networks. Decentralized data fusion and control in active sensor. It is the goal of this paper to investigate the relationship between sensing and communication in mobile sensor networks and demonstrate how the mobility can be utilized to achieve better overall performance. Numerical results demonstrate that it is a promising approach for decentralized learning in sensor networks. Each of the messages has a header that includes location information. In the area of algorithms, this thesis builds on the earlier work on decentralized data fusion ddf and its extension to informationtheoretic decistion making.

Usenix association, association for computing machinery, special interest group on data communications, and acm special interest group in operating. Architectural based data aggregation techniques in. A promising feature of emerging wireless sensor networks is the opportunity for each spatiallydistributed node to measure its local state and transmit only information relevant to effective. The main design objectives are scalability with the number of network components, maximum flexibility in implementation and deployment, and robustness to component and communication failure. Louis, department of computer science and engineering, campus box 1045, one brookings drive, st. The main design objectives are scalability with the number of network components, maximum flexibility in implementation and deployment, and robustness to component and.

Such decentralized architecture keeping the middleware closer to the devices facilitates real time control required for energy management applications. We address some fundamental questions concerning the performance of sensor networks, and provide insights into the dependence of detection performance on network architecture and cost constraints. Decentralized detection in sensor network architectures with. Introduction decentralized clustering techniques attempt to force the sensor nodes to collaborate with each other and create clusters without the help of any centralized base station. A decentralized architecture for active sensor networks alexei a. Decentralized data processing has the benefit of improving wireless monitoring system scalability, reducing the amount of wire.