A variety of applications for wireless sensor network technology have become practical and available including environment, healthcare, civil, and military, leading to greater interest in boththe research and industr...
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ISBN:
(纸本)9781479938599
A variety of applications for wireless sensor network technology have become practical and available including environment, healthcare, civil, and military, leading to greater interest in boththe research and industrial community. Despite several distinctive features, i.e., tiny size and portable, embedded various sensing capability, and cost-effectiveness, among routing and reliability, localization is one of the key challenges. Due to the cost and limitation of additional hardware nodes, a range-free localization scheme based on the absolute point-to-point distance estimation, is promising and is being pursued as a cost-effective approach. thus, we propose a novel hybrid localization algorithm utilizing distinctive characteristics of centroid-based and DV-Hop-based approaches with a heterogeneous number of reference nodes. In addition, an extra weight derived from a fuzzy logic function using signal intensity is employed. these combinations are Hybrid Fuzzy Centroid and DV-Hop Localization leading to outstanding performance in terms of location error reduction when compared to other state-of-the-art range-free localization schemes.
In spite of using unreliable resource-constrained devices, sensor networks can nowadays deliver 99.9% of their data with duty cycles well below 1%. this remarkable performance is, however, dependent on one or more of ...
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ISBN:
(纸本)9781450320276
In spite of using unreliable resource-constrained devices, sensor networks can nowadays deliver 99.9% of their data with duty cycles well below 1%. this remarkable performance is, however, dependent on one or more of the following assumptions: low traffic rates, medium size densities and static nodes.
this interactive demo presents and compares two diferent paradigms for image analysis in visual sensor networks (VSN), using a testbed based on battery-operated BeagleBone platforms with sight and wireless communicati...
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ISBN:
(纸本)9781450320276
this interactive demo presents and compares two diferent paradigms for image analysis in visual sensor networks (VSN), using a testbed based on battery-operated BeagleBone platforms with sight and wireless communication capabilities.
the information-preserving sampling properties of compres- sive sensing have found a number of successful applications, such as sensor scheduling, localisation and tracking to deal withthe resource constraints of the...
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ISBN:
(纸本)9781450320276
the information-preserving sampling properties of compres- sive sensing have found a number of successful applications, such as sensor scheduling, localisation and tracking to deal withthe resource constraints of the embeddedsystems. In this paper, we investigate an approach to improve the perfor- mance of compressive sensing applications through a novel strategy for optimising the projection matrix. We formu- late the projection matrix optimisation problem and ap- ply greedy algorithm to solve the optimisation problem efficiently. We evaluate the proposed approach by an emerging background subtraction method designed specifically for the embeddedsystems and show the proposed approach outper- forms existing approaches significantly with little overhead.
As embedded networks are evolving to open systems, it's becoming possible to create new applications on top of these existing embeddedsystems. However, developing new applications can be dificult due to the large...
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ISBN:
(纸本)9781450320276
As embedded networks are evolving to open systems, it's becoming possible to create new applications on top of these existing embeddedsystems. However, developing new applications can be dificult due to the large diversity of protocols that exist today. In this paper, the authors demonstrate how employing the CoAP protocol can enable rapid application development by re-using well-known principles from theWeb development world. Furthermore, we also demonstrate how a number of extensions to CoAP help to lower the barrier for developing applications even further.
the poor performance of TCP over wireless and lossy links has hindered its use in low power networks. the Low Power Wireless Bus (LWB) offers high reliable and low latency communication in IEEE 802.15.4 networks. In t...
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ISBN:
(纸本)9781450320276
the poor performance of TCP over wireless and lossy links has hindered its use in low power networks. the Low Power Wireless Bus (LWB) offers high reliable and low latency communication in IEEE 802.15.4 networks. In this paper, we argue that TCP can be used to provide reliable connectivity between sensor nodes in an LWB-based sensor network and external Internet hosts.
Comparing experimental results obtained on diferent wireless sensor network deployments is typically very cumbersome and in most cases unfeasible. this is due to the lack of a methodology to describe the properties of...
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ISBN:
(纸本)9781450320276
Comparing experimental results obtained on diferent wireless sensor network deployments is typically very cumbersome and in most cases unfeasible. this is due to the lack of a methodology to describe the properties of network deployments and the experimental conditions under which experiments have been run. Our work focuses on the design and development of a site properties assessment framework, called SiteWork, that aims at providing the means to quickly, automatically and accurately quantify their properties. this poster abstract describes the preliminary design and evaluation of the basic site properties assessment mechanisms provided by SiteWork.
Portolan is a crowdsourcing system, aimed at monitoring and measuring large-scale networks, that uses smartphones as mobile observation elements. Currently, Portolan is able to collect information about both wired and...
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ISBN:
(纸本)9781450320276
Portolan is a crowdsourcing system, aimed at monitoring and measuring large-scale networks, that uses smartphones as mobile observation elements. Currently, Portolan is able to collect information about both wired and wireless net- works, in particular it is used to obtain the graph of the Internet with unprecedented resolution and to associate per- formance indexes (received signal strength, maximum through- put) of cellular networks to geographic locations.
In this paper we introduce a novel sophisticated collusion attack scenario against a number of existing iterative filtering algorithms. To address this security issue, we propose an improvement for iterative filtering...
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ISBN:
(纸本)9781450320276
In this paper we introduce a novel sophisticated collusion attack scenario against a number of existing iterative filtering algorithms. To address this security issue, we propose an improvement for iterative filtering techniques by providing an initial approximation for such algorithms which makes them not only collusion robust, but also more accurate and faster converging.
the proceedings contain 58 papers. the topics discussed include: low-power wireless bus;how was your journey? uncovering routing dynamics in deployed sensor networks with multi-hop network tomography;broadcast-free co...
ISBN:
(纸本)9781450311694
the proceedings contain 58 papers. the topics discussed include: low-power wireless bus;how was your journey? uncovering routing dynamics in deployed sensor networks with multi-hop network tomography;broadcast-free collection protocol;loud-enabled privacy-preserving collaborative learning for mobile sensing;accurate caloric expenditure of bicyclists using cellphones;indoor pseudo-ranging of mobile devices using ultrasonic pulse compression;city-scale trac estimation from a roving sensor network;low cost crowd counting using audio tones;acc: generic on-demand accelerations for neighbor discovery in mobile applications;exploiting ephemeral link correlation for mobile wireless networks;efficient background subtraction for real-time tracking in embedded camera networks;doorjamb: unobtrusive room-level tracking of people in homes using doorway sensors;and proving indoor localization with social interactions.
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