Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Future smart mobile has to be a true chameleon


By continously adapting the receiver settings of a mobile phone to the current conditions, the advantage is twofold; facing bad reception, the connection can be improved while in good conditions, the energy consumption can be reduced. This is possible by an automatic controller developed by Lodewijk Smit of the University of Twente in The Netherlands. Smit did his PhD work on this, within the Centre of Telematics and Information Technology (CTIT).

The mobile connection can be optimized by frequently evaluating the quality and adapting the receiver of the mobile device to this level. The conditions are continuously changing. Hence, the quality of the reception is fluctuating. Modern phones will adapt to the service level required (speech, data or video) and not to the reception quality.
By using the advanced control method Smit has developed, the amount of calculation the receiver has to perform, can be decreased drastically. “In this way, it doesn’t have to work harder than strictly necessary. In bad conditions, this means using all resources for the actual signal, thus saving energy. In fair or good conditions, this means saving the battery. This is a major advantage as well. New applications put a growing strain on the battery, while the battery is not improving at the same speed.”

Lodewijk Smit started with a method for evaluating the quality in a simple and accurate way. Current methods send a lot of information over the mobile network, apart from the actual data, before quality level is determined. Smits method decreases this amount of overhead. He calculates a statistical analysis of the data received, to evaluate the probability that a sent symbol is received in the wrong way. The receiver can then be adjusted until the error level is obtained. A limited number of remaining errors is acceptable, as there are standard error-correcting codes in wireless and mobile communication.

Furthermore, Smit is able to predict the influence of the changed settings on energy consumption and connection quality. Up to now, this is not possible without complex calculation models. A major difference with current approaches is that Smit performs a global optimization of the various parts of the receiver. Usually, the parts are optimized separately: this is not necessarily an optimization of the whole.

The research is part of the CHAMELEON-project of the Centre of Telematics and Information Technology (CTIT) of the University of Twente. Within this context, new architectures are developed for energy-efficient architectures of mobile equipment. Too often, according to the CTIT-researchers, mobile devices are designed in basically the same way as desktop devices in which energy consumption is not an issue. Smit expects his method to be easily integrated into the circuits of new generations of mobiles.

Wiebe van der Veen | alfa
Further information:

More articles from Communications Media:

nachricht Product placement: Only brands placed very prominently benefit from 3D technology
07.07.2016 | Alpen-Adria-Universität Klagenfurt

nachricht NASA Goddard network maintains communications from space to ground
02.03.2016 | NASA/Goddard Space Flight Center

All articles from Communications Media >>>

The most recent press releases about innovation >>>

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

Im Focus: Etching Microstructures with Lasers

Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.

This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...

Im Focus: Light-driven atomic rotations excite magnetic waves

Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion

Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

VDI presents International Bionic Award of the Schauenburg Foundation

26.10.2016 | Awards Funding

3-D-printed magnets

26.10.2016 | Power and Electrical Engineering

Advanced analysis of brain structure shape may track progression to Alzheimer's disease

26.10.2016 | Health and Medicine

More VideoLinks >>>