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Interplay of Processing and Routing in Aggregate Query Optimization for Sensor Networks
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Interplay of Processing and Routing in Aggregate Query Optimization for Sensor Networks . × ... Interplay of Processing and Routing in Aggregate Query Optimization for Sensor Networks. Alexandre Guitton. 2008, Lecture Notes in …
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This study proposed BPA, a bucket-based parallel aggregate query processing technique for more efficient aggregate query processing in wireless sensor networks. In order …
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Armed with this data, it is then feasible to proceed with the process of flow concept design, and the following are general points to be borne in mind for building an effective crushing and screening plant. …
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In this paper, we propose a certificate-based aggregate signature scheme in WSN. In the random oracle model and under the computational Diffie-Hellman (CDH) Problem and bilinear Diffie-Hellman ...
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Aggregate queries over the sensor data are formulated using a simple SQL-like language, then distributed across the network. Aggregate results are sent back to the worksta- …
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Wireless sensor networks have been widely used in many applications, such as soil temperature monitoring for plant growth and abnormal event detection of …
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Aggregate query processing in the presence of duplicates Accuracy Vs Lifetime Linear Sketches for Appoximate. Aggregate query processing in the presence of duplicates in wireless sensor networks Article in Information Sciences 297 November with 37 Reads DOI /jinsSensor network applications rely heavily on aggregate queri Queries are also …
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Affording secure and efficient big data aggregation methods is very attractive in the field of wireless sensor networks (WSNs) research. In real settings, the WSNs have been broadly applied, such as target tracking and environment remote monitoring. However, data can be easily compromised by a vast of attacks, such as data interception and data …
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In-network aggregation has been proposed as one method for reducing energy consumption in sensor networks. In this paper, we explore two ideas related to further reducing energy consumption in the context of in-network aggregation. The first is by influencing the construction of the routing trees for sensor networks with the goal of …
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The techniques included for in-network processing are sensor fusion, sensor compression, sensor filtering, and sensor elimination . 5.1 Sensor Fusion Sensor fusion is a widespread technique which specific the aggregation of data as a partial action and its priority of information in place of data with the use of the approach such as signal ...
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Another method at the data manage- ment level is in-network query processing (or aggregation). 1 Introduction With in-network aggregation, a part of the computational work of the aggregation is performed within the sensor node before Advances in microelectronics have brought upon a new class it sends the results out to the network.
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This work proposes a PCM-based data transmission scheme to "make up" the possibly lost data, and designs an intelligent path selection algorithm for this scheme that outperforms its counterparts under various sensor network conditions. Wireless sensor networks have been widely used in many applications, such as soil temperature …
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Aggregate query processing in the presence of duplicates in wireless sensor networks. Author links open overlay panel Jun-Ki Min a, Raymond T. Ng b, Jun-Ki Min a, Raymond T. Ng b,
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Introduction. Densely distributed sensor networks are used in a variety of monitoring applications ranging from measurements of meteorological data (like …
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Aggregate queries are one of the most important queries in sensor networks. Especially, group-by aggregate queries can be used in various sensor …
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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 …
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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. In particular, grid nodes are used either to collect, compress and store sensor readings, and to extract information from stored data.
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A Location Based Aggregation Algorithm for Selective Aggregate Queries in Sensor Networks Muhammad Umer Lars Kulik Egemen Tanin National ICT Australia Department of Computer Science and Software Engineering University of Melbourne, Victoria 3010, Australia {mumer,lars,egemen}@csse.unimelb.edu.au ABSTRACT consumption by …
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The vehicle-to-grid (V2G) network is an infrastructure for electric vehicles (EVs) to be charged and discharged. As EVs are increasingly connected to V2G networks, V2G networks are facing serious data security problems. Attackers may eavesdrop on, tamper with, and forge the electricity transaction data, which will seriously damage the security of …
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Themajority ofthese efforts focuses onanswering aggregate queries, whichareofgreat importance tosurveillance applications (1), (2)andonenabling in-network processing bycombining individual sensor ...
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They emphasized that processing sensor data inside the network (in-network) before any further processing helps save limited resources and prevent excessive data duplication. ... It implies that IoT should have the ability to ingest, aggregate, and compress real-time data from sensor devices at the edge. In this …
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In what follows, we classify and explain the secure data aggregation protocols based on the requirement of decrypting sensor data at data aggregators. 4.1. Secure data aggregation using plain sensor data. Earlier work on secure data aggregation is focused on symmetric key cryptography and aggregation of plain data.
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This paper presents a novel approach to processing continuous aggregate queries in sensor networks, which lifts the assumption of tree-based routing. Given a query workload and a special-purpose gateway node where results are expected, the query optimizer exploits query correlations in order to generate an energy-efficient distributed ...
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Aggregate query processing in sensor networks has received a lot of attention recently [28, 30, 37]. The common approach to answering aggregate range queries.
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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. Slideshow 1782187 by emmet
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Abstract. Wireless sensor networks have been widely used in many applications, such as soil temperature monitoring for plant growth and abnormal event …
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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 ...
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0306-4379. Keywords. Aggregate queries, approximation, sensor networks. Abstract. In-network data aggregation has been recently proposed as an effective 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 ...
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In this paper, we have proposed an efficient and provably secure certificateless aggregate signature scheme of short length for wireless sensor networks. Our scheme adopted CL-PKC that guarantees the validity of the public key without a certificate signed by TTP. Also, it greatly reduces the computational cost and …
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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 …
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After wireless sensor network is deployed, users often submit spatial window aggregation queries to obtain statistical information of the regions of interest, such as maximum temperature, average humidity etc. Existing spatial window aggregation query processing algorithms are based on the assumption that the communication links are …
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Previous approaches for computing duplicate-sensitive aggregates in wireless sensor networks have used a tree topology, in order to conserve energy and to avoid double-counting sensor readings.
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A wireless sensor network consists of three main components: nodes, gateways, and a base station. The nodes, also known as sensor nodes, are small, low-power, autonomous devices that are deployed in the environment to measure and monitor various parameters. They are typically equipped with sensors, such as temperature, humidity, air pressure ...
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Glensanda Granite Quarry. Occupying a remote peninsula north of Oban, Glensanda is an immense coastal super-quarry. The facility includes a processing plant, a small aircraft landing strip, a coastal deep-water berth on Loch Linnhe, which can serve ships up to 120,000 tonnes, and a small harbour that receives a private ferry which crosses the ...
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The prediction of the average size of fragments in blasted rock piles produced after blasting in aggregate quarries is essential for decresing the cost of crushing and secondary breaking. There are several conventional and advanced processes to estimate the size of blasted rocks. Among these, the empirical prediction of the expected …
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