aggregate query processing in wireless sensor network
Welcome to the broken dawn

aggregate query processing in wireless sensor network

(PDF) Aggregate Queries in Wireless Sensor Networks

Wen-Chih Peng. This study proposes a method of in-network aggregate query processing to reduce the number of messages incurred in a wireless sensor network. When aggregate queries are issued to ...

Processing approximate aggregate queries in wireless ...

Dec 01, 2006  Aggregate queries. Approximation. 1. Introduction. Densely distributed sensor networks are used in a variety of monitoring applications ranging from measurements of meteorological data (like temperature, pressure, humidity), noise levels, chemicals etc., to complex military vehicle surveillance and tracking applications.

Aggregate query processing in the presence of duplicates ...

Mar 10, 2015  Abstract. Wireless sensor networks (WSNs) have received increasing attention in the past decade. In existing studies for query processing of WSNs, each sensor node measures environmental parameters such as temperature, light and humidity around its location. Instead, in our work, we consider a different type of sensors that detect objects in ...

Robust and Efficient Aggregate Query Processing in ...

Wireless sensor networks have been widely used in many applications, such as soil temperature monitoring for plant growth and abnormal event detection of industrial parameters. Among these applications, aggregate queries, such as SUM, COUNT, AVERAGE, MIN and MAX are often used to collect statistical data.

Processing Approximate Aggregate Queries in Wireless ...

routing [4, 26] and in-network query processing [14, 15, 16, 28]. A survey of the applications and the challenges that sensor networks introduce is presented in [10]. For monitoring queries that aggregate the observed values from a group of sensor nodes, [14] suggested the construction of a greedy aggregation tree that seeks to maximize the ...

Optimized Query Processing for Wireless Sensor Networks

Optimized Query Processing for Wireless Sensor Networks d a 1. I NTR ODUCI Recently sensor networks are used in various domains of computer applications. Infinite property and scalability of them give chance to getting around information in the highest resolution that impossible in previous technologies. They are used from military search to

Privacy-Preserving and Dynamic Spatial Range Aggregation ...

Apr 24, 2019  Abstract. The existing privacy-preserving aggregation query processing methods in sensor networks rely on pre-established network topology and require all nodes in the network to participate in query processing.

Query Processing for Sensor Networks

we introduce our model of a sensor network, sensor data, and the class of queries that we consider in this paper. We then demonstrate our algorithms to process simple aggregate queries with in-network aggregation (Section 3), and investigate the interaction between the routing layer and the query

(PDF) Complex query processing in wireless sensor networks

Complex query processing in wireless sensor networks. January 2007; ... In-network processing, however, has been limited to systems where at most, simple aggregate queries are evaluated, the ...

Opportunistic sampling-based query processing in wireless ...

Localized information processing is a hallmark of wireless sensor network (WSN) technology. In the face of growing deploymentsizes and need for higher sensing res-olution, localized information processing techniques attempt to fill the gap between user expectations and technological limitations of WSN hardware. These techniques

(PDF) Aggregate Queries in Wireless Sensor Networks

Wen-Chih Peng. This study proposes a method of in-network aggregate query processing to reduce the number of messages incurred in a wireless sensor network. When aggregate queries are issued to ...

Processing Approximate Aggregate Queries in Wireless ...

routing [4, 26] and in-network query processing [14, 15, 16, 28]. A survey of the applications and the challenges that sensor networks introduce is presented in [10]. For monitoring queries that aggregate the observed values from a group of sensor nodes, [14] suggested the construction of a greedy aggregation tree that seeks to maximize the ...

Robust and Efficient Aggregate Query Processing in ...

Wireless sensor networks have been widely used in many applications, such as soil temperature monitoring for plant growth and abnormal event detection of industrial parameters. Among these applications, aggregate queries, such as SUM, COUNT, AVERAGE, MIN and MAX are often used to collect statistical data. Due to the low quality sensing devices or random environmental disturbances, sensor

Robust and Efficient Aggregate Query Processing in ...

Request PDF Robust and Efficient Aggregate Query Processing in Wireless Sensor Networks Wireless sensor networks have been widely used in many applications, such as

Assembling Regions for Efficacious Aggregate Query ...

Assembling Regions for Efficacious Aggregate Query Processing in Wireless Sensor Networks by Apostolos Fertis Diploma, Electrical and Computer Engineering (2003) National Technical University of Athens Submitted to the Department of Electrical Engineering and Computer Science in partial fulfillment of the requirements of

(PDF) Complex query processing in wireless sensor networks

Complex query processing in wireless sensor networks. January 2007; ... In-network processing, however, has been limited to systems where at most, simple aggregate queries are evaluated, the ...

(PDF) Complex query processing in wireless sensor networks ...

Complex query processing in wireless sensor networks. ... In-network Aggregation SimulationThis simulation represents the class of query-based systems that incorporate in-network processing via aggregation of data up a spanning tree of the network, to the root (sink node). Assumptions(i) The network discovery phase has already occurred and a ...

TinyQP: A Query Processing System in Wireless Sensor Networks

Jun 14, 2013  TinyQP provides the in-network processing of several complex queries including real time query, historical query, event detection, aggregate query, top-k query, etc. TinyQP displays the network topology in a graphical way. TinyQP allows the user to remotely execute query commands and browse query result.

Opportunistic sampling-based query processing in wireless ...

Localized information processing is a hallmark of wireless sensor network (WSN) technology. In the face of growing deploymentsizes and need for higher sensing res-olution, localized information processing techniques attempt to fill the gap between user expectations and technological limitations of WSN hardware. These techniques

Data aggregation in wireless sensor network , 11751 d5811

Dec 25, 2012  Data aggregation in wireless sensor network , 11751 d5811. 1. Presented ByP.Praveen Kumar (09751A0581)B.TECH (CSE),SITAMS. 2. Sensor networks are collection of sensor nodeswhich co-operatively send sensed data to base station.As sensor nodes are battery driven, an efficientutilization of power is essential in order to use networksfor long ...

An adaptive in-network aggregation operator for query ...

Adaptive query operators (algorithms) can adjust their behavior in response to specific events that take place during data processing. In this paper, we propose an adaptive in- network aggregation operator for query processing in sensor nodes of a WSN, called ADAGA (ADaptive AGgregation Algorithm for sensor networks).

A seminar report on data aggregation in wireless sensor ...

Dec 25, 2012  A seminar report on data aggregation in wireless sensor networks ... 3.2 Tree-Based Approach 3.3 Cluster-Based Approach 3.4 Multi-path Approach4 Query Processing 15 4.1 Query Models 4.2 Query Language in Tiny DB 4.3 Queries and Aggregates5 Simulation and Experimental Analysis 206 Security Challenges 257 Advantages and Disadvantages 298 Future ...

Aggregate query processing in the presence of duplicates ...

Wireless sensor networks (WSNs) have received increasing attention in the past decade. In existing studies for query processing of WSNs, each sensor node measures environmental parameters such as ...

Wavelet-Based Least Common Ancestor Algorithm for ...

Wireless sensor network (WSN) is developed as a network of sensors, which engage in sensing and transmitting the data to the sink node. The constraints, such as energy, memory, and bandwidth insist the researchers to develop an efficient method for data transmission in WSN. Accordingly, this paper introduces a data aggregation mechanism based on query processing, Wavelet-based Least

Robust and Efficient Aggregate Query Processing in ...

Request PDF Robust and Efficient Aggregate Query Processing in Wireless Sensor Networks Wireless sensor networks have been widely used in many applications, such as

Aggregate query processing in the presence of duplicates ...

Wireless sensor networks (WSNs) have received increasing attention in the past decade. In existing studies for query processing of WSNs, each sensor node measures environmental parameters such as ...

Processing Approximate Aggregate Queries in Wireless ...

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): In-network data aggregation has been recently proposed as an e#ective means to reduce the number of messages exchanged in wireless sensor networks. Nodes of the network form an aggregation tree, in which parent nodes aggregate the values received from their children and propagate the result to their own

(PDF) Complex query processing in wireless sensor networks ...

Complex query processing in wireless sensor networks. ... In-network Aggregation SimulationThis simulation represents the class of query-based systems that incorporate in-network processing via aggregation of data up a spanning tree of the network, to the root (sink node). Assumptions(i) The network discovery phase has already occurred and a ...

Optimizing Multiple In-Network Aggregate Queries in ...

in-network query processing for power saving in wireless sensor networks [3][5][6]. Prior works [2][6] explore the feature of in-network aggregation in which sensor nodes in a routing tree are able to perform aggregate operators. The authors in [1] proposed in-network materialized view that could be shared by multiple

Opportunistic sampling-based query processing in wireless ...

Localized information processing is a hallmark of wireless sensor network (WSN) technology. In the face of growing deploymentsizes and need for higher sensing res-olution, localized information processing techniques attempt to fill the gap between user expectations and technological limitations of WSN hardware. These techniques

A seminar report on data aggregation in wireless sensor ...

Dec 25, 2012  A seminar report on data aggregation in wireless sensor networks ... 3.2 Tree-Based Approach 3.3 Cluster-Based Approach 3.4 Multi-path Approach4 Query Processing 15 4.1 Query Models 4.2 Query Language in Tiny DB 4.3 Queries and Aggregates5 Simulation and Experimental Analysis 206 Security Challenges 257 Advantages and Disadvantages 298 Future ...

Curve Query Processing in Wireless Sensor Networks - IEEE ...

Nov 26, 2014  Abstract: Most existing query processing algorithms for wireless sensor networks (WSNs) can only deal with discrete values. However, since the monitored environment always changes continuously with time, discrete values cannot describe the environment accurately and, hence, may not satisfy a variety of query requirements, such as the queries of the maximal, minimal, and inflection

Data aggregation in wireless sensor network , 11751 d5811

Dec 25, 2012  Data aggregation in wireless sensor network , 11751 d5811. 1. Presented ByP.Praveen Kumar (09751A0581)B.TECH (CSE),SITAMS. 2. Sensor networks are collection of sensor nodeswhich co-operatively send sensed data to base station.As sensor nodes are battery driven, an efficientutilization of power is essential in order to use networksfor long ...

Efficient Continuous Skyline Query Processing in Wireless ...

sensors Article E cient Continuous Skyline Query Processing in Wireless Sensor Networks Yingyuan Xiao 1,2,* , Xu Jiao 2, Hongya Wang 3, Ching-Hsien Hsu 4,*, Li Liu 2 and Wenguang Zheng 2 1 Key Laboratory of Computer Vision and System, Ministry of Education, Tianjin University of Technology, Tianjin 300384, China 2 Tianjin Key Laboratory of Intelligence Computing and Novel Software

Toward adaptive query processing in wireless sensor networks

[8] I. Solis, K. Obraczka, In-network aggregation trade-offs for data collection in wireless in sensor networks, INRG Technical Report 102, August 2003. Google Scholar [9] Y. Yao, J. Gehrke, Query processing for sensor networks, in: Proceedings of the CIDR conference, 2003. Google Scholar

Area Query Processing Based on Gray Code in Wireless ...

consider characteristics of wireless sensor networks. Most existing data collection systems are query-based ones. Traditional query processing techniques of wireless sensor networks mainly deal with retrieving sensor node locations, sensed values, and aggregating the sensed values. However, in many applications, users

Data Aggregation in Wireless Sensor Network: A Survey

Data Aggregation in Wireless Sensor Network: A Survey 169 3.1.1 Diffusion: Directed diffusion (DD) [2] may be a popular information aggregation paradigm for wireless device networks. it's a data-centric and application aware paradigm, within the sense that every one information generated by sensor nodes is called by attribute-value pairs.

In-Network Data Processing forWireless Sensor Networks

In wireless sensor networks, energy is the most crucial resource. In-network data processing is a common technique in which an intermediate proxy node is chosen to house a possibly complicated ...

Copyright © 2021.Company name All rights reserved.Dawn Broken