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- Wireless Sensor Networks Powered by Ambient Energy Harvesting (WSN-HEAP) - Survey and Challenges
- Wireless Sensor Networks WSNs research has predominantly assumed the use of a portable and limited energy source, viz. batteries, to power sensors. Without energy, a sensor is essentially useless and cannot contribute to the utility of the network as a whole. Consequently, substantial research efforts have been spent on designing...
- Tags: Network, Wireless Sensor Network, Sensor, Survey, Wireless, Institute For Infocomm Research, Networking
- White papers 2009-03-07
- Overcoming Radio Link Asymmetry in Wireless Sensor Networks
- This paper derives two new energy efficient reliable data transport protocols for overcoming the negative impact of asymmetric radio links in wireless sensor networks. The energy efficiency of these algorithms is explicitly derived using their theoretical model, and validated by results obtained from simulations and field trials. The analytical, simulation...
- Tags: Network, Wireless Sensor Network, Radio, IEEE, Wireless
- White papers 2009-01-06
- Honeycomb Architecture for Energy Conservation in Wireless Sensor Networks
- Reducing energy consumption has been a recent focus of wireless sensor network research. Topology control explores the potential that a dense network has for energy savings. One such approach is Geographic Adaptive Fidelity GAF. GAF is proved to be able to extend the lifetime of self-configuring systems by exploiting redundancy...
- Tags: Network, Wireless Sensor Network, IEEE, Wireless, Geographic Adaptive Fidelity, Networking
- White papers 2009-01-06
- Supporting Aggregate Queries Over Ad-Hoc Wireless Sensor Networks
- This paper shows how the database community's notion of a generic query interface for data aggregation can be applied to ad-hoc networks of sensor devices. As has been noted in the sensor network literature, aggregation is important as a data-reduction tool; networking approaches, however, have focused on application specific solutions,...
- Tags: Network, Aggregation, Wireless Sensor Network, Wireless, Networking, Storage, Databases, Hardware, Enterprise Software, Software, Data Management
- White papers 2009-01-01
- Ad-Hoc Wireless Sensor Networks for Exploration of Solar-System Bodies
- This work evaluates the exploration of the Solar system by ad-hoc Wireless Sensor Networks WSN, i.e. networks where all nodes either moving or stationary can both provide and relay data. The two aspects of self-organization and localization are the major challenges to achieve a reliable network for a variety of...
- Tags: Network, Wireless Sensor Network, Wireless, EPFL, Networking
- White papers 2009-01-01
- Energy-Balancing Strategies for Wireless Sensor Networks
- The lifetime of wireless sensor network is crucial, since autonomous operation must be guaranteed over an extended period. As all the sensor data has to be forwarded to an observer via multi-hop routing, the traffic pattern is highly nonuniform, putting a high burden on the sensor nodes close to the...
- Tags: Network, Wireless Sensor Network, Hop, Wireless, University Of Notre Dame, Networking
- White papers 2009-01-01
- Resilient Event Detection in Wireless Sensor Networks
- As wireless sensor networks become widely used, the need to provide fault tolerant, user-friendly middleware for detecting sensed events increases. Their contribution is the motivation, design, implementation and evaluation of ResTAG, which provides fault-tolerant aggregate queries in the popular, user-friendly TinyDB middleware. If a sensor becomes mis-calibrated or physically compromised,...
- Tags: Fault-tolerance, Network, Wireless Sensor Network, Western Washington University, Wireless
- White papers 2009-01-01
- Implementation of an On-Demand Routing Protocol for Wireless Sensor Networks
- This paper presents their experiences in implementing and validating the on-demand EYES Source Routing protocol ESR in a real Wireless Sensor Network WSN environment. ESR has a fast recovery mechanism relying on MAC layer feedback to overcome frequent network topology changes resulting from node mobility and unreliability. A geographically restricted...
- Tags: Network, Environment, On-demand, Wireless Sensor Network, Wireless, University Of Twente, ESR, Managed Hosting, Cloud Computing, Wireless And Mobility
- White papers 2009-01-01
- Routing Techniques in Wireless Sensor Networks: A Survey
- Wireless Sensor Networks WSNs consist of small nodes with sensing, computation, and wireless communications capabilities. Many routing, power management, and data dissemination protocols have been specifically designed for WSNs where energy awareness is an essential design issue. The focus, however, has been given to the routing protocols which might differ...
- Tags: Technique, Network, Wireless Sensor Network, Survey, Wireless, Productivity, Wi-Fi, Wireless And Mobility, Networking
- White papers 2009-01-01
- Approach to Learning Research With Wireless Sensor Networks in an Outdoor Setting
- Automated collection of environmental data may be accomplished with Wireless Sensor Networks WSNs. In this paper, a general discussion of WSNs is given for the gathering of data for educational research. WSNs enhance the scope of a researcher to include multiple streams of data: environmental, cyberdata, video, and RFID. A...
- Tags: Network, Wireless Sensor Network, Wireless
- White papers 2008-10-27
- Wireless Sensor Networks for Resources Tracking at Building Construction Sites
- This paper evaluates the technical feasibility of applying emerging wireless network technologies for resources tracking at building construction sites. They first identify practical constraints in solving resource-tracking problems in an enclosed or partially covered environment. They then compare pros and cons of available localization principles and examine the latest wireless...
- Tags: Network, Wireless Sensor Network, Wireless, Wi-Fi, Ultrawideband (UWB), Wireless And Mobility
- White papers 2008-10-01
- LIDeA: A Distributed Lightweight Intrusion Detection Architecture for Sensor Networks
- Wireless sensor networks are vulnerable to adversaries as they are frequently deployed in open and unattended environments. Preventive mechanisms can be applied to protect them from an assortment of attacks. However, more sophisticated methods, like intrusion detection systems, are needed to achieve a more autonomic and complete defense mechanism, even...
- Tags: Network, Wireless Sensor Network, Sensor, Intrusion Detection System, Association For Computing Machinery, LIDeA, Intrusion Detection, Network Security, Security, Networking
- White papers 2008-09-25
- Implementation of a Security System Based on RFID and WSN Technology
- Over the last few year the author has observed a convergence of Wireless Sensor Networks WSNs and RFID systems. In the next generation "Super RFID technology" traditional passive tags will be replaced using dedicated WSNs that extend standard tags to allow data acquisition and data storage, e.g. for monitoring purposes....
- Tags: Network, Wireless Sensor Network, Wireless, Wireless Sensor Network Node, RFID, Wireless And Mobility, Security, Biometrics
- White papers 2008-09-18
- Reliable Multicast in Wireless Sensor Networks
- Multicasting in Wireless Sensor Networks WSNs is an efficient way to disseminate the same data to multiple receivers. For critical tasks such as code updates, reliability would be a desirable feature, in order to use multicasting for such scenarios. Due to the nature of WSNs, several problems exist that make...
- Tags: Network, Wireless Sensor Network, Multicasting, Wireless, University Of Berne, Networking
- White papers 2008-08-29
- Wireless networks mimicking biological systems
- The goal of the EU-funded WINSOC project is to build self-organizing networks of wireless sensors by applying principles learned from living organisms. These wireless sensors will be used for a wide range of environmental monitoring purposes. As says the WINSOC scientific coordinator, 'Living systems are intrinsically robust against cells dying...
- Tags: Network, Wireless Sensor Network, Sensor, Wireless Network, Measurement Data, Wi-Fi, Wireless, Networking, Roland Piquepaille
- Blog posts 2008-08-28
- Wireless Sensor Networks: A Great Opportunity for Researchers in Developing Countries
- This paper advocates the use of wireless sensor networks in Developing Countries as one foresees they have a great role to play not only to expedite novel solutions that help mitigate development problems, but also to facilitate research activities in crucial scientific areas such as environmental monitoring, physics of complex...
- Tags: Developing Country, Network, Wireless Sensor Network, Wireless, University Of Cape Town
- White papers 2008-08-15
- Multicast Routing in Wireless Sensor Networks
- This paper deals with the state of the nowadays research of the multicast routing protocols for wireless sensor networks. They describe how to establish efficient multicast tree for wireless sensor network environment and introduce the two base groups of the multicast routing protocols. For these groups, blind flooding and geographic...
- Tags: Network, Wireless Sensor Network, Routing Protocol, Wireless
- White papers 2008-08-15
- IP-based Wireless Sensor Network for Asset Tracking and Management
- This white paper gives an introduction of how to utilize Sensinode IP-based 6LoWPAN Internet Protocol, wireless sensor and embedded networking technology in asset tracking and management. To monitor and manage enterprise assets is a huge task and has been basically impossible until today, at least on a large scale, in...
- Tags: Asset, Network, Wireless Sensor Network, IP, Wireless, Sensinode, Asset Management, Wi-Fi, Wireless And Mobility, Operational Planning, Business Operations
- White papers 2008-08-03
- Optimal Cluster Number Selection in Ad-Hoc Wireless Sensor Networks
- In clustering-based Wireless Sensor Networks WSNs, a certain sensing area is divided into many sub-areas. Cluster formation and cluster head selection are well done in the setup phase. With the predetermined probability and random, every round in the WSNs has the different cluster numbers and cluster heads. However, the well...
- Tags: Network, Wireless Sensor Network, Wireless
- White papers 2008-08-01
- Design of a Low Cost Radio Based Ad Hoc Communication System for Rural Areas
- Mobile ad hoc network is a collection of wireless mobile hosts which are interconnected by a communication media like radio. The communication network is formed without the aid of any centralized authority or preexisting infrastructure. By its characteristic this type of network is self-starting and self-organizing. It has been observed...
- Tags: Advertisement, Mobile, Network, Wireless Sensor Network, Radio, Wireless, Communication Network, Advertising & Promotion, Networking, Marketing
- White papers 2008-07-18
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