As sensornetworks gain popularity and technology scaling allows further processing in each network node, the programming of these distributed computational structures becomes a serious bottleneck. Interpreted languag...
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ISBN:
(纸本)9783642042836
As sensornetworks gain popularity and technology scaling allows further processing in each network node, the programming of these distributed computational structures becomes a serious bottleneck. Interpreted languages adoption may allow a smaller programming effort, and since they show a denser code representation than their directly executed counterpart, interpreted code exhibits smaller power dissipation during over-the-air reprogramming. As technology scales, the processing energy cost tends to reduce more than communication energy, which is bounded by the required irradiated radio power. By allowing the execution of more complex software WSN can be used for more refined applications, like image processing, compression and recognition. Also, interpretation can allow the use of object oriented technology software, allowing high productivity gains. However, the interpretation overhead cost and the extra memory required in Java, for example, argue against interpreted languages adoption in WSN. In this paper we show the design space for interpreted languages, and demonstrate that there is a large application domain where interpretation benefits can be used together with energy efficiency.
The decentralized detection of events is a primary task in many applications of wireless sensornetworks. Since energy consumption is the main constraint in networks of battery-powered sensors, as it limits their life...
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With the current sensor network technology and embedded technology integration, this paper is about research in wireless sensor network architecture. Its design includes an collection layer, transport layer, processin...
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In recent years, various small sensor nodes have been devel- oped for recognizing real world situations and events for the development of context-aware systems. We consider that the acceleration sensor is one crucial ...
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ISBN:
(纸本)9781605583662
In recent years, various small sensor nodes have been devel- oped for recognizing real world situations and events for the development of context-aware systems. We consider that the acceleration sensor is one crucial element for recogniz- ing various types of situations because it has rich and simple information. An application system using acceleration data requires the following features: 1) rapid processing of data without large memory since the amount of acceleration data is much greater than the amount of other sensor data, 2) a node that reduces the amount of data sent to a server, and 3) systems that can be easily configured by users at low cost. Current sensor nodes, however, do not have enough func- tions to satisfy these requirements. We propose a rule-based data processing engine for processing acceleration data. Our proposed engine rewrites the rules on each node with a few bytes of data. We evaluated our rule-based engine on our small sensor node called the Motion sensing and Communi- cation Minimized Chip (MoCoMi-Chip). Copyright 2008 ACM.
作者：
Lie, S.Leyman, R.Chew, Y.H.
Digital Wireless Department TeleTech Park Singapore Science Park II 20 Science Park Road #02-34/37 Singapore117674 Singapore
This paper proposes a closed-form estimation technique for a wideband constant amplitude polynomial-phase signal embedded in white Gaussian noise. It is shown that it is possible to jointly estimate the highest order ...
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In this work, we develop a target coverage-aware clustering algorithm for directional sensornetworks, namely TRACE, that enhances the network lifetime. The TRACE nodes exploit single-hop neighborhood information only...
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ISBN:
(纸本)9781538637906
In this work, we develop a target coverage-aware clustering algorithm for directional sensornetworks, namely TRACE, that enhances the network lifetime. The TRACE nodes exploit single-hop neighborhood information only to elect cluster heads (CHs) and gateways. Thus, the TRACE is a fully distributed and light-weight clustering algorithm. The TRACE CHs greedily maximize the number of targets covered by as minimum number of sensor nodes as possible. The performances of the proposed TRACE system are studied on Network Simulator version 3 (ns- 3), and the results show that, it outperforms a state-of-the-art- work.
Based on computational geometry method, a coverage algorithm for wireless sensor network based on matrix is proposed in this paper. In the algorithm, the whole monitored area is simplified to be a matrix. Each vertex ...
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A study on the feasibility of applying database correlation methods to locate mobile stations (MSs) within a live GSM cellular network is presented. The mobile station's signal strength values, extracted from the ...
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ISBN:
(纸本)9781424416875
A study on the feasibility of applying database correlation methods to locate mobile stations (MSs) within a live GSM cellular network is presented. The mobile station's signal strength values, extracted from the periodic MS measurement reports at the Abis interface, were correlated with the values obtained from a radio network coverage prediction tool, available at the operator's premises, to predict the user's location. The main advantage of this solution is that it uses information that already resides, or is being exchanged, within the network and does not necessitate any additional hardware in the infrastructure. The results obtained were compared with actual road tests, utilizing global positioning systems (GPS), to determine the error of the system. The resulting error correlates well with other studies which do not use dedicated location detection infrastructures.
In this paper we present a knowledge base for the generation and optimization of query execution plans for parallel database systems. This knowledge base builds the basis of a novel extended blackboard architecture fo...
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This paper presents a robust and optimized data compression and suppression based on DCT and Image overlapping methods to transfer panorama images through the Wireless sensornetworks (WSN). First, we will receive the...
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