Aggregate Query Processing Sensor Networks

Madden S, Szewczyk R, Franklin MJ, Culler D (2002) Supporting aggregate queries over Ad-Hoc wireless sensor networks. In Proceedings of WMCSA. Google Scholar; Manjhi A, Nath S, Gibbons PB (2005) Tributaries and deltas: efficient and robust aggregation in sensor network streams. In Proceedings of the SIGMOD Conference. Google Scholar

paid to efficient query processing for aggregate queries [Madden et al. 2002; Yao and Gehrke 2002; Zhao et al. 2003]. In the TinyDB system [Madden et al. 2005, 2003, 2002], users connect to the sensor network using a workstation or base station directly connected to a sensor designated as the sink. Aggregate queries over the sensor data are

Aggregate queries over the sensor data are formulated using a sim-ple SQL-like language, then distributed across the net-work. Aggregate results are sent back to the worksta-tion over a …

A novel approach to processing continuous aggregate queries in sensor networks, which lifts the assumption of tree-based routing and proposes common routing structures to share the sub-aggregates at an early stage, thus further reducing the communication cost of result propagation. We present a novel approach to processing continuous aggregate queries in …

tention paid to efficient query processing for aggregate queries [15, 20, 23]. In the TAG system [15], users connect to the sen-sor network using a workstation or base station directly connected to a sensor designated as the sink. Aggregate queries over the sensor data are formulated using a sim-ple SQL-like language, then distributed across ...

Supporting Aggregate Queries Over Ad-Hoc Wireless Sensor Networks 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 Applications are Data Oriented Queries Natural and Efficient Data Processing Mechanism Easy (unlike ...

In order to solve these problems in existing aggregate query processing techniques and to enhance the efficiency of aggregate query processing in wireless sensor networks, this study proposed aggregate query processing technique BPA (bucket-based parallel aggregation).

Routing and processing multiple aggregate queries in sensor networks (PDF) Routing and processing multiple aggregate queries in sensor networks | Antonios Skordylis - Academia.edu Academia.edu no longer supports Internet Explorer.

query processor (e.g.,the ability to select, join, project, and aggregate data), but, as we will discuss in this paper, also incorporates a number of other features designed to minimize power consumption via acquisitional techniques. These techniques, taken in aggregate, ... Acquisitional Query Processing In Sensor Networks ...

DOI: 10.1016/j.jss.2010.08.049 Corpus ID: 17591500; Effective processing of continuous group-by aggregate queries in sensor networks @article{Lee2010EffectivePO, title={Effective processing of continuous group-by aggregate queries in sensor networks}, author={Chunseok Lee and Chin-Wan Chung and Seok-Ju Chun}, journal={J. Syst. Softw.}, …

Interplay of Processing and Routing in Aggregate Query Optimization for Sensor Networks . × ... Interplay of Processing and Routing in Aggregate Query Optimization for Sensor Networks. Antonios Skordylis. 2008, Distributed Computing and Networking. See full PDF download Download PDF.

Aggregate Query Processing in Ad-Hoc Sensor Networks. Yong Yao Database lunch, Apr. 15th. Outline. Motivating Example Sensor and Sensor Network Query Model In-Network Aggregates Routing and Aggregation Summary. Motivating Example.

Supporting Aggregate Queries Over Ad-Hoc Wireless Sensor Networks Madden UC Berkeley With Robert Szewczyk, Michael Franklin, and David Culler

Acquisitional Query Processing In Sensor Networks • 125 Section 6 discusses our adaptive, power-sensitive model for query execution and result collection. 2. SENSOR NETWORK OVERVIEW We begin with an overview of some recent sensor network deployments, and then discuss properties of sensor nodes and sensor networks in general, provid-

Queries Data Distributed in network query processor 3 TinyDB or Cougar Wireless sensor network Query input Result collection 2 Query parsing Query optimization 1 Query result storage and display Figure 1. Architecture of a sensor network query processor. Numbers indicate the sequence of steps involved in processing a query.

optimizations of queries injected into the network. 1.2. In-Network Aggregation A query requesting aggregate data is injected into the sensor network at a host node, also known as a sink. The query is forwarded by the host to the other nodes in the network. The simplest and least optimal query plan would require each node to report its own

In this paper we present a Grid-based architecture that supports aggregate query answering on sensor network data, and uses a summarization technique to efficiently accomplish this task. ... Yao, Y., Gehrke, J.E.: Query Processing in Sensor Networks. In: Proc. of the 1st Bie. Conf. on Innovative Data Systems Research, Asilomar, CA, USA (2003 ...

ICEDB describes a new framework for continuous query processing in sensor networks with intermittent network connectivity and large amount of data to transfer. ... During query processing, partial aggregate results are transmitted from a node to its parent in the spanning tree. Once an intermediate node in the tree has received all data from ...

Chen et al.,7 proposed Secure and Efï¬ cient Query Processing in Sensor Networks (SafeQ) to prevent unauthorized information access from both sensor’s data or from queries in a two-tier architecture with storage nodes as intermediary. ... Preliminaries Handling of multiple aggregate queries in Sensor Networks is a challenging task ...

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 layer (Section 4). We

Sliding Window Aggregate Queries: A sensor network can be considered as a source of stream data. Then, the stream data can be broken into possibly overlapping partitions by specifying a window and computation can be carried out in each partition. While in-network processing is generally used in the sensor network where each sensor computes a ...

Tree construction is currently performed using simple flooding algorithms, data-centric reinforcement strategies or energy-aware route selection schemes. This paper presents a query-driven approach to routing and processing continuous aggregate queries in sensor net-works.

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 …

Assembling Regions for Efficacious Aggregate Query Processing in Wireless Sensor Networks by Apostolos Fertis Diploma, Electrical and Computer Engineering (2003) ... 1.1 Query answering in sensor networks ..... 1.2 Encouraging the cooperation among sensors ..... 1.3 Protocols for improving aggregation ..... 2 Background 2.1 Regions. ...

Acquisitional Query Processing In Sensor Networks · 13 Table I. Parameters used in lifetime estimation Parameter Description Units l crem En Etrans Ercv σ C Query lifetime goal Remaining Battery Capacity Energy to sample sensor n Energy to transmit a single sample Energy to receive a message Selectivity of selection predicate # of children ...

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

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 ... The algorithm uses the point-by-point overlay …

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 ...

This study proposed BPA, a bucket-based parallel aggregate query processing technique for more efficient aggregate query processing in wireless sensor networks. In order to reduce the energy consumption of …