Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Wireless networks can now be truly wireless

20.04.2009
It is difficult and expensive to create wireless networks in sparsely populated areas or to cover a whole city, for example.

Each wireless connection point requires, notwithstanding the name, a cable with a connection to the Internet. But these problems are now being solved by Andreas Kassler, professor of computer science at Karlstad University in Sweden, and his research team.

This research has been underway for a couple of years at the university. Now they are launching collaboration with Deutsche Telekom Laboratories to test new technology. During the year the technology will be tested in Vänern House at Karlstad University and after that in a real urban environment in Berlin. These tests will primarily involve IP telephony.

"We are researching entirely wireless connection points, or Mesh nodes, that is, the points where users connect their computers to the Internet," says Andreas Kassler.

The idea behind the new technology is that the nodes communicate with each other instead of each node having to have its own connection to the Internet. Today, however, this technology poses a problem, since the capacity of the networks drops rapidly. The connection nodes have a hard time communicating with several nodes at the same time. This problem will be eradicated by the research being pursued by Andreas Kassler's team. Karlstad University has one of the first experimental environments in Sweden in which each node can use several network cards and communicate on different frequencies simultaneously. This means that the capacity is the same throughout the network.

Telephone and Internet operators are interested in this technology since it makes it less costly to build networks. This should ultimately lead to lower costs for users, according to Andreas Kassler.

Andreas Kassler, Professor in telematics (datavetenskap)
Karlstad university; +46-54 700 21 68; +46-706 841 901; Andreas.kassler@kau.se
Pressofficer Christina Celsing; +46-708 25 66 77; christina.celsing@kau.se

Christina Celsing | idw
Further information:
http://www.kau.se
http://www.vr.se

More articles from Information Technology:

nachricht Intelligent maps will help robots navigate in your home
19.06.2018 | Schwedischer Forschungsrat - The Swedish Research Council

nachricht Football through the eyes of a computer
14.06.2018 | Universität Konstanz

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Overdosing on Calcium

Nano crystals impact stem cell fate during bone formation

Scientists from the University of Freiburg and the University of Basel identified a master regulator for bone regeneration. Prasad Shastri, Professor of...

Im Focus: AchemAsia 2019 will take place in Shanghai

Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.

Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...

Im Focus: First real-time test of Li-Fi utilization for the industrial Internet of Things

The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.

Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.

Im Focus: Sharp images with flexible fibers

An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.

Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...

Im Focus: Photoexcited graphene puzzle solved

A boost for graphene-based light detectors

Light detection and control lies at the heart of many modern device applications, such as smartphone cameras. Using graphene as a light-sensitive material for...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Munich conference on asteroid detection, tracking and defense

13.06.2018 | Event News

2nd International Baltic Earth Conference in Denmark: “The Baltic Sea region in Transition”

08.06.2018 | Event News

ISEKI_Food 2018: Conference with Holistic View of Food Production

05.06.2018 | Event News

 
Latest News

Carbon nanotube optics provide optical-based quantum cryptography and quantum computing

19.06.2018 | Physics and Astronomy

How to track and trace a protein: Nanosensors monitor intracellular deliveries

19.06.2018 | Life Sciences

New material for splitting water

19.06.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>