sensor network

ZDNet Resources

• sort by:
• Relevance
• Date
• Popularity

Application of Middleware and Agent Technologies to a Representative Sensor Network

Sensor networks are Distributed Real-time Embedded DRE systems that often operate in open environments where operating conditions, workload, resource availability, and connectivity cannot be accurately characterized a priori. The South East Alaska MOnitoring Network for Science, Telecommunications, Education, and Research SEAMONSTER project illustrates many common system management and dynamic operation...

Tags: Network, Agent, Sensor, Vanderbilt University, Sensor Network, Real Estate, Networking, Middleware, Business Operations, Enterprise Software, Software

White papers 2008-05-21

Providing Anonymity in Wireless Sensor Networks

Sensor networks are often used to monitor sensitive information from the environment or track sensitive objects' movements. Anonymity has become an important problem in sensor networks, and has been widely researched in wireless ad hoc and wired networks. The limited capacity and resources of current sensor networks have brought new...

Tags: Network, Wireless Sensor Network, Anonymity, Wireless, Sensor Network, Networking

White papers 2007-04-27

Collaborative Signal Reinforcement in Sensor Networks

Sensor networks can be used for various application areas such as health, military, and home. Research in collaborative methods and wireless communication has enabled the development of sensor networks. This paper presents a collaborative signal reinforcement scheme for sensor networks in which a cluster of mobile, independent and interchangeable nodes...

Tags: Virginia Polytechnic Institute, Network, Sensor, Reinforcement, Sensor Network, Wi-Fi, Wireless, Networking

White papers 2007-02-23

Distributed TCP Caching for Wireless Sensor Networks

Many applications of wireless sensor networks are useful only when connected to an external network. Previous research on transport layer protocols for sensor networks has focused on designing protocols specifically targeted for sensor networks. The deployment of TCP/IP in sensor networks would, however, enable direct connection between the sensor network...

Tags: Network, Wireless Sensor Network, TCP, Freie Universitat Berlin, Sensor Network, Tcp/Ip, Networking, Wi-Fi, Wireless

White papers 2007-01-01

Impact of Mobile Sink Speed on the Performance of Wireless Sensor Networks

This paper investigates the impact of mobile sink speed on the performance of Wireless Sensor Networks WSNs. Sensor networks are distinguished from traditional networks by characteristics such as deeply embedded routers, highly dynamic networks, resource constrained nodes, frequent topology change and unreliable and asymmetric links. This paper proposes a novel,...

Tags: Performance, Mobile, Network, Wireless Sensor Network, Wireless, Sensor Network, Simulation Result, Networking

White papers 2007-01-01

The arrival of geosensor networks

In a very interesting article, Location Intelligence describes how the capture of geospatial information traditionally done by using cameras, laser scanners and GPS sensors, is being revolutionized by recent advances in advances in nanotechnology. In fact, "nanotechnology has made it both feasible and economically viable to develop and deploy low-cost,...

Tags: geosensor network, sensor, network

Blog posts 2006-03-16

A Security Framework for Wireless Sensor Networks

Wireless sensor networks are result of developments in micro electro mechanical systems and wireless networks. These networks are made of tiny nodes which are becoming future of many applications where sensor networks are deployed in hostile environments. The deployment nature where sensor networks are prone to physical interaction with environment...

Tags: Network, Wireless Sensor Network, University Of Sydney, Sensor Network, Security Measure, Security, Wireless

White papers 2006-02-09

Energy-Efficient TCP Operation in Wireless Sensor Networks

Many applications of wireless sensor networks require connectivity to external networks to let monitoring and controlling entities communicate with the sensors. By using the TCP/IP protocols inside the sensor network, external connectivity can be achieved anywhere in the sensor network. In such IP-based sensor networks, TCP can be used for...

Tags: Network, Wireless Sensor Network, TCP, Wireless, University Of Berne, Sensor Network, Tcp/Ip, Networking

White papers 2005-03-02

Constructing Wireless Sensor Networks Via Effective Topology Maintenance and Querying

The ability of properly covering the terrain under investigation and collecting measurements from redundantly sensed portions of the terrain are two important objectives for monitoring applications using wireless sensor networks. Here, a new architectural view of information retrieval for XML compliant environmental monitoring applications is introduced. The sensor network is...

Tags: Network, Wireless Sensor Network, Monitoring, Wireless, Monitoring Application, Sensor Network

White papers

Additional Resources

PRTG Network Monitor 7.2.3.4990 (Windows)

An advanced, easy-to-use monitoring solution for your entire network. The software's features include: up/downtime monitoring, traffic and usage monitoring, packet sniffing, in-depth analysis and concise reporting. A user-friendly web-based interface allows users to quickly auto-discover and configure the network devices and sensors they wish to monitor. All common methods for...

Tags: Network, Monitoring, Sensor, Microsoft Windows, Paessler, PRTG Network Monitor, Commercial Editions, Networking

Software downloads 2009-11-26

Let's get rid of usernames and passwords for good

RE: Let's get rid of usernames and passwords for goodIf you think technology can solve your security problems, then you don't understand the problems and you don't understand the technology. -Bruce SchneierCommon sense & best practicesFirst off social networking sites are a DISASTER waiting to happen, private data into a...

Tags: password, security

Discussion threads 2009-11-23

Toshiba DMF82XKU 8-inch Digital Media Frame

Digital frames can be divided into two categories: connected digital media frames and digital photo frames. The Toshiba DMF82XKU 8-inch Digital Media Frame, is--surprise--one of the former. It easily connects to a Wi-Fi network for access to photo collections from a variety of online sources as well as letting you...

Tags: photograph, Toshiba Corp., digital media

Product reviews 2009-10-07

Recognizing Daily Activities With RFID-Based Sensors

This paper explores a dense sensing approach that uses RFID sensor network technology to recognize human activities. In the setting, everyday objects are instrumented with UHF RFID tags called WISPs that are equipped with accelerometers. RFID readers detect when the objects are used by examining this sensor data, and daily...

Tags: Sensor, RFID, Networking, Wireless And Mobility, Security, Biometrics

White papers 2009-10-03

HTC Touch Pro2 (Verizon Wireless)

Photo gallery:HTC Touch Pro2 Verizon WirelessThe HTC Touch Pro2 is making the rounds to the various carriers; first showing up at T-Mobile, then to Sprint, and now Verizon Wireless. Verizon's version of the Windows Mobile smartphone isn't all that different from the other models, delivering a powerful business device capable...

Tags: Smart phones, Handhelds, Cellular phones, Verizon HTC Touch Pro2, Verizon Wireless, High Tech Computer Corp., HTC Touch, HTC Touch Pro2, Verizon Communications Inc., smart phone

Product reviews 2009-09-22

First impressions: HTC Hero Android smartphone on Sprint [review]

I recently got a chance to put my grubby paws all over the HTC Hero smartphone, a Google Android-based device on Sprint. Needless to say, it's a pretty slick device. In fact, it's the slickest touchscreen Android phone currently on the market. ...

Tags: High Tech Computer Corp., Google Android, Phone, Smart Phone, Sprint Communications, HTC Hero, Mobile Operating Systems, Smart Phones, Keyboards, Consumer Electronics, Personal Technology, Hardware, Peripherals, Andrew Nusca

Blog posts 2009-09-22

An electrical circuit that runs entirely off power in trees

You've probably already heard of the idea of harvesting electricity from body heat to power small devices, such as those in the far-flung idea of a body area network. Now, a similar idea has been applied to trees. There's enough power in trees for University of Washington researchers to run...

Tags: Tree, Team Management, Management, Chris Jablonski

Blog posts 2009-09-08

Western Digital debuts 2TB, 7200RPM enterprise-class hard drives

Western Digital on Tuesday announced that it is now shipping 2TB, 7200RPM enterprise-class desktop hard drives with WD's 500 gigabytes-per-platter technology. The company's family of Caviar Black drives (pictured, below) is intended for gaming, high-performance desktop systems and workstations; while the 2TB WD...

Tags: Hard Drive, Performance, Positioning, High-performance, Western Digital Corp., Branding, Leadership, Performance Management, Processors, Marketing, Management, Human Resources, Workforce Management, Semiconductors, Hardware, Components, Andrew Nusca

Blog posts 2009-09-01

Data Management of Mobile Object Tracking Applications in Wireless Sensor Networks

This paper focuses on the data management problem of object tracking applications in wireless sensor networks. The paper proposes link-segment storage and query protocol to track mobile object in wireless sensor network dynamically. The main idea of the protocol is to combine advantages of local storage with data centric storage...

Tags: Mobile, Network, Wireless Sensor Network, Wireless, Academy Publisher, Data Management, Storage, Hardware

White papers 2009-09-01

System Framework and Its Application in Mobile RFID Service Network

Mobile RFID Radio Frequency Identification is a newly emerging technology which uses the mobile phone as an RFID reader with a wireless technology and provides new valuable services to the user by integrating RFID and ubiquitous sensor network infrastructure with mobile communication and wireless internet. UHF Mobile RFID technology is...

Tags: Mobile, Network, UHF Mobile RFID Technology, RFID, Wireless And Mobility, Security, Biometrics

White papers 2009-07-11

NSA will monitor private-sector networks

The Bushization of Obama continues with a plan to involve the NSA in screening private-sector networks, The Washington Post reports. The plan not only uses the NSA to monitor private networks but it does so in a way that makes it unclear who exactly is in charge...

Tags: Monitor, Network, AT&T Corp., U.S. Department Of Homeland Security, NSA, Post Story, Privacy Advocate, Networking, Telecom & Utilities, Telecommunications, Security, Richard Koman

Blog posts 2009-07-06