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MAX, Silberstein [19] presents a novel query processing algorithm called HAT with the goal of minimizing message traffic cost in a network while guaranteeing data accuracy. …
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Figure 1: The architecture of sensor node Query Processing in Wireless Sensor Network 5 Hence in the whole pretext described above we can only make a result out of the following that without proper set of protocols and various other systems the query processing cannot be used in the wireless system networks. 3.
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Request PDF | Distributed Query Processing Optimization in Wireless Sensor Network Using Artificial Immune System | With the great advancement in wireless technology, number of wireless sensor ...
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Among the available aggregation methods, in-network processing plays a major role to reduce the amount of data to be transmitted in the network. ... Xia F, Xia F, Wang Z, Sun Y (2006) An energy-efficient In-network aggregation query algorithm for wireless sensor networks. In: Proceedings of the first international conference on …
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Previous studies propose in-network aggregate query processing, in which sensor nodes use aggregate operators to reduce the number of messages, thereby conserving energy [28] [29] [43]. When multiple aggregate queries are submitted to wireless sensor networks, it is possible to generate the intermediate results of these …
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This paper presents a highly efficient aggregation query processing method for large-scale multidimensional data. Recent developments in network technologies have led to the generation of a large amount of multidimensional data, such as sensor data. Aggregation...
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There are various sensor network query processors (SNQPs) (implementing in-network declarative query processing) that provide data reduction, aggregation, logging, and auditing facilities.
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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 the resource-constrained wireless sensor network, it is important to efficiently perform these queries.
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A range aggregate query returns summarized information about the points falling in a hyper-rectangle (e.g., the total number of these points instead of their concrete ids). This paper studies spatial indexes that solve such queries efficiently and ...
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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.
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Query Processing in Wireless Sensor Network 3 FIGURE 1(a): Centeralised Data Approach for WSN The following protocols are followed in the Query processing: 2.1 TinyDB TinyDB is a simple protocol which provides Structured Query Language (SQL) Interface which allows user to query the network using declarative queries (retrieves
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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.
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In this paper, we introduce a general framework for distributed processing of spatio-temporal queries in a sensor network that has two main phases: (1) routing the query to the spatial area ...
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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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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 …
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tree (STAT), based on which an efficient in-network aggregation routing path for query results can be found. Through extensive simulation, we demonstrate that ESTA can save more than 50% of the energy consumption compared with the baseline algorithm. Keywords: UAV networks, query processing, spatial-temporal query, spatial …
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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 ...
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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 monitoring for plant …
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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 to reduce the …
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This thesis presents a system (MaD-WiSe) for the efficient management of data in Wireless Sensor Networks (WSN) in static scenarios and provides various optimization techniques validated by ...
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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 ...
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routing, localization, clustering, data aggregation, query processing and medium access control. Here, an issue is functional if it is essential to the basic operation of the wireless sensor network. • Section IV investigates machine learning solutions in WSNs for fulfilling non-functional requirements, i.e.
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We highlight how query processing in WSNs is handled by the current literature on sensor network query processors, the expressiveness of their query …
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To avoid relying on a pre-constructed topology and to reduce the energy consumption of the nodes in query processing, this paper proposes a privacy-preserving and dynamic spatial range aggregation query algorithm, named E 2 PDA, in a wireless sensor network.. Figure 1 shows the execution procedure of the E 2 PDA algorithm, …
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The top–k query is an important type of query for the wireless sensor network. In this paper, we present an iterative algorithm to process the top–k query, which is a distributed algorithm combining the in–network aggregation and the trace back techniques. By using the in–network aggregation technique, the iterative algorithm …
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We propose an efficient in-network aggregate algorithm when an object is detected multiply by several sensor nodes.We ... J.M. Hellerstein, W. Hong, Tinydb: an acquisitional query processing system for sensor networks, ACM TODS 30 (1) (2005) 122-173. ... V. Ailawadhi, G.J. Pottie, Protocols for self-organization of a wireless sensor network ...
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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, …
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Radix-Partition-Based Over-the-Air Aggregation and Low-Complexity State Estimation for IoT Systems Over Wireless Fading Channels. Authors: Minjie Tang. ... IoT sensors monitor a dynamic plant and deliver the state measurements to a remote state estimator over an unreliable wireless network. We propose novel radix-partition-based over-the-air ...
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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 ...
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Query Processing in Wireless Sensor Networks. Data Aggregation in Wireless Sensor Networks. Summary and Future Directions. References
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