Mobile telephony without base stations

A dissertation at Linköping University in Sweden presents a program that runs on telephones and can deliver messages even when the infrastructure for telecommunication has been knocked out.

Natural disasters in recent years have shown how vulnerable our society is to unforeseen and disruptive events. At the same time we have seen that there is a strong will to help people in crisis areas. But for rescue operations to work, telecommunications need to be up and running.

Mobile telephone base stations and satellite telephones are of major importance, but they have their limitations in terms of cost, construction time, and access on a large scale. Mikael Asplund, a doctoral candidate in computer science, is now presenting, among other things, a complement to existing communication channels in a crisis.

The idea is to use the new generation of mobile phones to send messages directly from one phone to another. The advantage of this type of spontaneous network is that it can be used by everyone, without any special equipment, and it can be set up virtually instantly to solve problems that arise in a specific place.

But such networks bring not only great potential but also challenges, as gaps and network partitions can arise, so that nobody can forward a message. At the same time the use of batteries necessitates great energy efficiency. Mikael Asplund and his associates have designed a program that overcomes these difficulties when it is run on telephones, making it possible to deliver messages under extremely severe conditions.

The first part of the dissertation also deals with network partitions in a more controlled environment. This problem can arise, for example, when an Internet bank experiences disruptions in its network connection to other parts of the bank. The dissertation presents a method for the bank to continue to provide service to its customers despite such breakdowns.

The dissertation Disconnected discoveries: Availability studies in partitioned networks is published by LiU Electronic Press

Contact: Mikael Asplund +46 (0)13-282668, +46 (0)707-481462, mikael.asplund@liu.se

Pressofficer Åke Hjelm; ake.hjelm@liu.se; +46-13 281 395

Media Contact

Åke Hjelm idw

Alle Nachrichten aus der Kategorie: Information Technology

Here you can find a summary of innovations in the fields of information and data processing and up-to-date developments on IT equipment and hardware.

This area covers topics such as IT services, IT architectures, IT management and telecommunications.

Zurück zur Startseite

Kommentare (0)

Schreib Kommentar

Neueste Beiträge

Scientists achieve higher precision weak force measurement between protons, neutrons

Through a one-of-a-kind experiment at the Department of Energy’s Oak Ridge National Laboratory, nuclear physicists have precisely measured the weak interaction between protons and neutrons. The result quantifies the weak…

High-performance single-atom catalysts for high-temperature fuel cells

Individual Pt atoms participate in catalytic reaction to faciitate the electrode process by up to 10 times. Single-atom Pt catalysts are stable at 700 degrees Celsius and expected to stimulate…

New method allows precise gene control by light

A novel optical switch makes it possible to precisely control the lifespan of genetic “copies”. These are used by the cell as building instructions for the production of proteins. The…

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close