In this demo we show how the Lorien operating system [5] supports lightweight, efficient and safe online channges to any aspect of the software running on sensor nodes - and how this promotes reuse of deployed sensor ...
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ISBN:
(纸本)9781450303446
In this demo we show how the Lorien operating system [5] supports lightweight, efficient and safe online channges to any aspect of the software running on sensor nodes - and how this promotes reuse of deployed sensor networks through run-time software evolution. Copyright 2010 acm.
this demonstration shows our versatile heterogeneous sensor networks testbed. this testbed supports high speed embedded WLAN node, medium speed IEEE802.15.4 node, wired computer and so on with powerful supervision pla...
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ISBN:
(纸本)9781450303446
this demonstration shows our versatile heterogeneous sensor networks testbed. this testbed supports high speed embedded WLAN node, medium speed IEEE802.15.4 node, wired computer and so on with powerful supervision platform. the unique features of the testbed are as follows: (1) Supporting heterogeneous sensor networks;(2) Owning powerful testbed nodes;(3) Emulating the interference and noise withthe USRP2 replaying the real signal. Copyright 2010 acm.
Withthe advancement of the sensor network technology and cyber physical systems [2], the merging between the virtual cyber space and the real physical world is bound to happen, which will impact the lifestyle of the ...
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ISBN:
(纸本)9781450303446
Withthe advancement of the sensor network technology and cyber physical systems [2], the merging between the virtual cyber space and the real physical world is bound to happen, which will impact the lifestyle of the human being. the metropolitan area sensor networks, composed of millions of heterogeneous sensors and penetrating every aspect of the city life, provide gigantic amount of real-time information of the city, which makes it possible to reconstruct the real world in an on-line cyber space.
Existing sensor network simulators are not appropriate for indoor sensor network systems. We present RealSSim, the sensor network simulator especially developed for indoor sensor networks. RealSSim considers the struc...
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ISBN:
(纸本)9781450303446
Existing sensor network simulators are not appropriate for indoor sensor network systems. We present RealSSim, the sensor network simulator especially developed for indoor sensor networks. RealSSim considers the structure of buildings and the quality of construction materials for accu- rate radio propagation analysis. It also supports an attractive visualization of the level as commercial products. In our demonstration, we show the whole process of simulation for two indoor sensor network systems. Copyright 2010 acm.
In mission-critical applications such as battlefield reconnaissance or industrial safety and security, a large number of sensor nodes are deployed in a large area to detect and report event related information to the ...
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ISBN:
(纸本)9781450303446
In mission-critical applications such as battlefield reconnaissance or industrial safety and security, a large number of sensor nodes are deployed in a large area to detect and report event related information to the end-users. When a critical event in the monitoring region is detected by a node, alarm should be broadcast to all the other nodes in the neighborhood. this effect is shown in Figure 1.
We propose DisCord, an opportunistic protocol for neighbor discovery and data exchange coordination in sensor networks. DisCord allows multiple low-end nodes within radio range to discover each other, self-organize in...
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ISBN:
(纸本)9781450303446
We propose DisCord, an opportunistic protocol for neighbor discovery and data exchange coordination in sensor networks. DisCord allows multiple low-end nodes within radio range to discover each other, self-organize into a network, and exchange data in an autonomous fashion. DisCord can successfully cope with node mobility and unstable network dynamics. Copyright 2010 acm.
An increasing number of sensor networks have been deployed to monitor a variety of conditions and situations. At the same time, more and more applications are starting to rely on the data from sensor networks to provi...
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ISBN:
(纸本)9781450303446
An increasing number of sensor networks have been deployed to monitor a variety of conditions and situations. At the same time, more and more applications are starting to rely on the data from sensor networks to provide users with (near) real-time information and conditions. this increasing demand of users for accurate information about natural and surrounding phoenomena is creating a business case for application providers.
Powertron is a web-based application that visualizes wireless sensor network deployment data. In this particular demo, we use Powertron to show application-level power data collected from more than 250 sensor nodes. I...
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ISBN:
(纸本)9781450303446
Powertron is a web-based application that visualizes wireless sensor network deployment data. In this particular demo, we use Powertron to show application-level power data collected from more than 250 sensor nodes. In addition, we expose the routing layer of the deployment by providing real-time interactive visual representation of links, routes, and CTP-related statistics. We hope that the community will have feedback on how such a tool can be extended and generalized to fit a variety of wireless sensor network applications. Copyright 2010 acm.
Wireless sensor Networks (WSNs) have been deployed in a wide range of applications with different sensing and communication requirements. As a consequence, various MAC solutions have been proposed suiting to different...
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ISBN:
(纸本)9781450303446
Wireless sensor Networks (WSNs) have been deployed in a wide range of applications with different sensing and communication requirements. As a consequence, various MAC solutions have been proposed suiting to different application characteristics [1]. However, MAC protocols are typically implemented in a monolithic fashion - specific to a particular hardware platform. this hinders the possibility of code re-use across different platforms, which makes both implementation and porting cumbersome. It also imposes difficulties in protocol redesign when the application requirements change since the entire radio stack needs to be modified.
this poster presents an innovative dual-mode medium access control scheme that combines the ultra low power MAC protocol WiseMAC withthe wireless sensor networking standard IEEE 802.15.4. Each network device can inde...
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ISBN:
(纸本)9781450303446
this poster presents an innovative dual-mode medium access control scheme that combines the ultra low power MAC protocol WiseMAC withthe wireless sensor networking standard IEEE 802.15.4. Each network device can independently and autonomously switch between the two modes depending on its residual energy resources and the current application traffic. We observe that this approach can reduce the power consumption and the average latency by almost two orders of magnitude. Copyright 2010 acm.
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