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.
The encryption method assigns different keys to the concealed data acquired from different nodes, and BS can correctly distinguish them in the aggregation process . Assume that k types of query are supported by a network. Therefore, k public and private key pairs are required. We take the following steps to generate the key pairs.
Key words- Location privacy, wireless sensor networks, location monitoring system, aggregate query processing, spatial histogram 1 INTRODUCTION The advance in wireless sensor technologies has resulted in many new applications for military and/or civilian purposes. Many cases of these applications rely on the information of personal …
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 …
Request PDF | On Sep 1, 2018, Xiaocui Li and others published Multi-Attribute Query Processing Through In-Network Aggregation in Edge Computing | Find, read and cite all the research you need on ...
The issue is with the query processing, specifically with regards to determining which data from the network are required, as well as the collecting frequency of the data. ... Fuzzy logic-based two-level clustering for data aggregation in WSN. 2020 17th International Multi-Conference on Systems, Signals & Devices (SSD), Monastir, …
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 …
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 ...
The data collected from wireless sensor network indicate the system status, the environment status, or the health condition of human being, and we can use the wireless sensor network data to carry out appropriate work by processing it.
There are various sensor network query processors (SNQPs) (implementing in-network declarative query processing) that provide data reduction, aggregation, logging, and auditing facilities. These SNQPs view the wireless sensor network as a distributed database over which declarative query processor can be used to program a WSN …
We present a privacy data aggregation protocol called Queries Privacy Protection for Data Aggregation (QPPDA) which involves three phases: the grid …
A sensor network consists of the random deployment of large numbers of tiny sized sensor nodes in a region of interest to detect the physical/environmental events and transmit the relevant data to ...
Data aggregation processes are essential constituents for data management in modern computer systems, such as decision support systems and Internet of Things systems, many with timing constraints. Understanding the common and variable features of data aggregation processes, especially their implications to the time-related …
Summary This chapter contains sections titled: Introduction Query Processing in Wireless Sensor Networks Data Aggregation in Wireless Sensor Networks Summary and Future …
Data aggregation algorithms play a primary role in WSN, as it collects and aggregates the data in an energy efficient manner so that the life expectancy of the network is extended. This paper intends to develop a query-based aggregation model for WSN using the advanced optimization algorithm called group search optimization …
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.
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 …
This can be achieved by introducing database query processing (QP) and in-network aggregation (fusion) techniques234 into WSN. While the distributed query engines proposed by Brayner et al. [5 ...
Fig. 18 a shows how the query result assumes different approximations of the correct result, based on three approaches: (i) proactive, used in ADAGA to monitor energy and memory availability, in order to adjust sensor activities; (ii) reactive, which consists of processing in-network aggregation without monitoring resource usage, thus this ...
DBStream: an Online Aggregation, Filtering and Processing System for Network Traffic Monitoring Arian Bär, Pedro Casas Lukasz Golab Alessandro Finamore FTW - Telecommunications Research Center Vienna {baer, casas}@ftw.at University of Waterloo [email protected] Politecnico di Torino fi[email protected] Abstract—Network …
In [41], the authors realize the fact that existing privacy homomorphism based in-network processing protocols can only work for some specific query-based aggregation functions, e.g., sum, average, etc. Hence, instead of privacy homomorphism, the authors take advantage of digital watermarking and propose an end-to-end, …
In this paper, we propose an adaptive in-network aggregation operator for query processing in sensor nodes of a WSN, called ADAGA (ADaptive AGgregation …
following that without proper set of protocols and various other systems the query processing cannot be used in the wireless system networks. 3. Conclusions This deliverable presents the state of the art in query optimization and processing over data produced by sensor networks, considering current networking and architectural
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 …
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 ...
We highlight how query processing in WSNs is handled by the current literature on sensor network query processors, the expressiveness of their query …
In-network data aggregation has been recently proposed as an effective means to reduce the number of messages exchanged in wireless sensor networks. ... The Cougar approach to in-network query processing in sensor networks, SIGMOD Rec. 31 (3) (2002) 9-18.]] ... This paper investigates strategies for prolonging the system lifetime for wireless ...
We propose an efficient in-network aggregate algorithm when an object is detected multiply by several sensor nodes.We extend our algorithm to support sliding window aggregate queries ... J.M. Hellerstein, W. Hong, Tinydb: an acquisitional query processing system for sensor networks, ACM TODS 30 (1) (2005) 122-173. ... A wireless sensor …
In-network adaptive query optimization for Wireless Sensor Networks (WSNs) database considered as a distributed database has been a wide research field. Due to.
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 …
DOI: 10.1016/jpenvurbsys.2009.01.006 Corpus ID: 19829817; Optimizing query processing using selectivity-awareness in Wireless Sensor Networks @article{Umer2009OptimizingQP, title={Optimizing query processing using selectivity-awareness in Wireless Sensor Networks}, author={Muhammad Fahad Umer and Lars …
The main goal of in-network processing is to increase the longevity of a network by minimizing the resource utilization in the sensor nodes. ... BS broadcasts the query to the system. 2. Initialization ... Maivizhi, R., Yogesh, P. (2018). Efficient and Robust Secure In-Network Aggregation in Wireless Sensor Networks. In: …
The existing spatial range aggregation query algorithms Tiny AGgregation (TAG), 7 R tree, 8 and STWinFlood 9 rely on preconfigured network topologies such as the tree rooted at the base station. But they do not take privacy protection into account. In addition, due to factors such as the environment and node failure, the network topology …
investigate issues related to the data collection and query optimization in a wireless sensor network. In the TAG [12, 13], sensors are organized in a spanning tree rooted at the sink. TAG proposes an in-network aggregation [12] technique which allows nodes to combine its own value with data received from all children and then
1 Introduction. Wireless sensor networks have been widely used in many environmental monitoring applications [1]. In most of these applications, aggregate queries, such as …
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 ...
In wireless sensor networks, users often submit spatial window aggregation queries to obtain the summary information about a local area in the monitored region, for example, "retrieving the ...
B. Query processing and optimization In WSN efficient communication is achieved using data aggregation and [16] query processing. Query processing and optimization are essential method for the DBMS and are used for timeframe method. Query processing refers to data extraction from the database. The updating of data and