Mapping migrations by using mobile phone data

Researchers from the Complex Systems Group (GSC) at Universidad Politécnica de Madrid (UPM) have used mobile phone data generated by 9 million users to study the mobility of population from Senegal. Results show a clear ...

Weakness of 2G mobile phone networks revealed

The encryption scheme used for second generation (2G) mobile phone data can be hacked within seconds by exploiting weaknesses and using common hardware, A*STAR researches show. The ease of the attack shows an urgent need ...

Power amplifiers for 5G made of gallium nitride

The wireless data transmission via mobile communication is reliable and affordable. However, data volume per user is rising exponentially. Causes are not only the continuously growing number of smartphones, but also trends ...

Satellite communication of the future

In disasters, rescuers usually communicate via satellite if phone and mobile telecommunication is out. But that has drawbacks: Once the data lines are overloaded, the connection disconnects. In addition, there barely are ...

Finding solitude in an era of perpetual contact

Being alone has many benefits. It grants freedom in thought and action. It boosts creativity. It offers a terrain for the imagination to roam. Solitude also enriches our connections with others by providing perspective, which ...

Bridging the 'gray divide'

While close to 99 percent of seniors aged 65 and older in the United States and Europe use mobile phones, there appears to be a "gray divide" in how seniors use information and communication technology, according to a Ben-Gurion ...

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