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 Interactive software tool makes complex mold design simple
16.08.2018 | Institute of Science and Technology Austria

nachricht Fraunhofer HHI develops next-generation quantum communications technology in the UNIQORN project
16.08.2018 | Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut, HHI

All articles from Information Technology >>>

The most recent press releases about innovation >>>

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

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

Im Focus: Lining up surprising behaviors of superconductor with one of the world's strongest magnets

Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur

What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

2018 Work Research Conference

25.07.2018 | Event News

 
Latest News

Staying in Shape

16.08.2018 | Life Sciences

Diving robots find Antarctic seas exhale surprising amounts of carbon dioxide in winter

16.08.2018 | Earth Sciences

Protein droplets keep neurons at the ready and immune system in balance

16.08.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>