aggregate query processing in wireless sensor network

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Data_Aggregation_and_Query_Processing_in_WSN - IJSER

Data Aggregation and Query Processing in WSN. Ayoni Mukherjee, Sanjit Setua. Abstract - A wireless sensor network (WSN) has a wide range of important applications such as remote environment monitoring, target tracking etc. This has been enabled by the availability of sensors that are smaller, cheaper and intelligent.

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Energy e–cient query aggregation and optimization scheme ...

In order to provide e–cient data services for sensor network applications, an overlay-based query aggregation approach including a query manager and an efiective query aggregation algorithm was presented in [16]. The query manager, located at the base station, is mainly devoted to deflning the global query aggregation plan, and the query ...

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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

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In-network database query processing for wireless sensor ...

wireless sensor network by integrating the dynamic programming technique for the most optimal query decision, the optimality factor in our experiment is the query cost. In-network query processing of wireless sensor networks is discussed in detail in order to develop a more energy efficient approach to query processing.

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Robust and Distributed Computation of Aggregates in ...

Robust and Distributed Computation of Aggregates in Wireless Sensor Networks Jen-Yeu Chen Gopal Pandurangan Dongyan Xu Purdue University, ... maximin, sum, and count could be further adapted to more sophisticated data query or information processing …

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Wireless sensor network - Wikipedia

Aggregation complicates the already existing security challenges for wireless sensor networks and requires new security techniques tailored specifically for this scenario. Providing security to aggregate data in wireless sensor networks is known as secure data aggregation in WSN.

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Query Processing for Sensor Networks - Cornell University

Query Processing for Sensor Networks Yong Yao Johannes Gehrke Department of Computer Science ... The wireless network con-necting the sensor nodes provides usually only a very limited quality of service, has latency with ... simple aggregate queries with in-network aggregation (Section 3), and investigate the interaction between ...

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Data Aggregation and Query Processing in WSN - IJSER

Data Aggregation and Query Processing in WSN Ayoni Mukherjee, Sanjit Setua Abstract - A wireless sensor network (WSN) has a wide range of important applications such as remote environment monitoring, target tracking etc. This has been enabled by the availability of sensors that are smaller, cheaper and intelligent.

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Adaptive aggregation tree transformation for energy ...

Adaptive aggregation tree transformation for energy-efficient query processing in sensor networks Mu-Huan Chiang Related information 1 Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC, USA.

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Inter-Query Data Aggregation in Wireless Sensor Networks ...

Inter-Query Data Aggregation in Wireless Sensor Networks Xiaowei Zhang SEI of Peking University Beijing, China ... Keywords- wireless sensor networks, data aggregation, inter-query data aggregation, power management I. ... schemes. In TAG system, the whole query-processing is divided into two phases: a distribution phase in which queries

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In-network Query for Wireless Sensor Networks - CiteSeerX

aggregate query processing in wireless sensor networks, this paper proposes In-network Query Method(IQM). IQM divides a query region into several cells according to the distribution of sensor nodes and builds a Quad-tree, and then processes aggregate queries …

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aggregate query processing sensor networks

Processing Approximate Aggregate Queries in Wireless Sensor Networks Antonios Deligiannakis a Yannis Kotidis b Nick Roussopoulos a a University of Maryland b AT&T Labs-Research Abstract In-network data aggregation has been recently proposed as an effective means to reduce the number of messages exchanged in wireless sensor networks.

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Location Monitoring System in Wireless Sensor Networks ...

Location Monitoring System in Wireless Sensor Networks Using Aggregate Query Processor S. Suresh Kumar¹, Mrs. Manjula.G² ¹(MTech Student, Department of ISE, East West Institute of Technology, Karnataka, India, ²(Assistant Professor, Department of ISE, East West Institute of …

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Supporting Aggregate Queries Over Ad-Hoc Wireless …

Supporting Aggregate Queries Over Ad-Hoc Wireless Sensor Networks ... 2002 Motivation: Sensor Nets and In-Network Query Processing Many Sensor Network Applications are Data Oriented Queries Natural and Efficient Data Processing Mechanism Easy (unlike embedded C code) Enable optimizations through abstraction Aggregates Common Case E.g ...

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Expos e zur Diplomarbeit Processing Multiple Aggregation ...

Most existing solutions like for processing aggregation queries in wireless sensor networks, like [MFHH02] and [TGS06], assume a static network with a single gateway node used to dissem- inate all queries over over static links.

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Supporting Aggregate Queries Over Ad-Hoc Wireless Sensor ...

Supporting Aggregate Queries Over Ad-Hoc Wireless Sensor Networks. Samuel Madden UC Berkeley. With Robert Szewczyk, Michael Franklin, and David Culler. WMCSA June 21, 2002. Motivation: Sensor Nets and In-Network Query Processing. Many Sensor Network …

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CiteSeerX — In-network Query for Wireless Sensor Networks

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Recently, in-network aggregate query processing techniques have problems such as high energy consumption in sensor nodes, low accuracy of query processing results, and long query processing time. In order to solve these problems and to enhance the efficiency of aggregate query processing in wireless sensor networks ...

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Processing approximate aggregate queries in wireless ...

Request PDF on ResearchGate | Processing approximate aggregate queries in wireless sensor networks | Abstract In-network data aggregation has been recently proposed as an eective,means to …

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Data Aggregation Security Challenge in Wireless Sensor ...

2.3 efficiency of Data Aggregation Devices in wireless sensor networks (or sensors) are often resources-lim-ited or energy-constrained. Hence, it is important to design and develop efficient data processing techniques to make effective use of the data. Data aggregation [58] is an efficient mechanism in query processing in which

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Histogram and Other Aggregate Queries in Wireless Sensor ...

1 Histogram and Other Aggregate Queries in Wireless Sensor Networks Khaled Ammar and Mario A. Nascimento Department of Computing Science, University of Alberta, Edmonton, Canada { kammar,mn}@cs.ualberta.ca Abstract—Wireless Sensor Networks (WSNs) are typically used to query is an aggregate query, which provides a statistical collect values of some phenomena in a monitored …

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Impact of Data Aggregation in Wireless Sensor Networks

The Impact of Data Aggregation in Wireless Sensor Networks Abstract— Sensor networks are distributed event-based systems that differ from traditional communication net-works in several ways: sensor networks have severe en-ergy constraints, redundant low-rate data, and many-to-one flows. The end-to-end routing schemes that have been pro-

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aggregate query processing definition

aggregate query processing sensor networks . aggregate query processing in sensor networks. aggregate query processing in sensor networks. The Design of an Acquisitional Query Processor For Sensor Networks ever, tend to view query processing in sensor. Contact Supplier

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SDACQ: Secure Data Aggregation for Coexisting Queries in ...

the corresponding user. The aggregation query is then routed to the sensor network using power cost incurred [5] or by dividing the query region into cells [6]. Some algorithms perform query processing by constructing separate routing tree for each query [7]. Niedermayer et al., [8] addressed the problem of computing exact quantiles

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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 …

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1 Robust Computation of Aggregates in Wireless Sensor ...

A wireless sensor network consists of a large number of small, resource-constrained devices and ... tolerance, Graph theory, Aggregate, Data query, Stochastic processes. I. INTRODUCTION ... For cooperative processing in a sensor network, the information of interest is not the data at

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Processing approximate aggregate queries in wireless ...

Processing approximate aggregate queries in wireless sensor networks ... While the nodes in sensor networks form an aggregation tree where messages are aggregated and, therefore, ... Y. Yao, J. GehrkeThe Cougar approach to in-network query processing in sensor networks.

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Adaptive spatial window aggregation query processing ...

Users of wireless sensor networks (WSNs) often submit spatial window aggregation queries to obtain the summary information about a local area in the monitored region. We propose an adaptive spatial window aggregation query processing algorithm called ASWAP in this paper. It divides the query area into several disjoint sub–regions. A cluster head node is elected in each sub–region which ...

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aggregate query processing sensor networks

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. Get Price

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Optimized Query Processing for Wireless Sensor Networks

Optimized Query Processing for Wireless Sensor Networks d a 1. I NTR ODUCI ... section5, we will discuss aggregation queries. In section6, we propose a method for executing aggregation ... [12] proposed a peer to peer query processing model via peer to peer tree structure that query can appear in each node (against other models that query ...

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Adaptive spatial window aggregation query processing ...

Users of wireless sensor networks (WSNs) often submit spatial window aggregation queries to obtain the summary information about a local area in the monitored region. We propose an adaptive spatial window aggregation query processing algorithm called ASWAP in this paper. It divides the query area into several disjoint sub–regions.

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In-network database query processing for wireless sensor ...

wireless sensor network by integrating the dynamic programming technique for the most optimal query decision, the optimality factor in our experiment is the query cost. In-network query processing of wireless sensor networks is discussed in detail in order to develop a more energy efficient approach to query processing.

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aggregate query processing in sensor networks

Poster Abstract: Routing and Processing Multiple Aggregate ... Sensor networks, Aggregate queries. ... ple of processing a single aggregate query, which …

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