Mobile phones

Mobile phones

Industry: Mobile communications

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Mobile phones

Attenuation

Mobile communications; Mobile phones

The loss of signal energy due to absorption, reflection, or diffusion during transmission.

Authentication

Mobile communications; Mobile phones

The verification process to assure that a wireless device and its user are compatible with and authorised to access a wireless network. This process is accomplished through transmission of ...

Roaming agreement

Mobile communications; Mobile phones

An agreement between two or more wireless telephone companies outlining the terms and conditions under which the participating companies will provide wireless service to each others subscribers. ...

Radio frequency (RF)

Mobile communications; Mobile phones

The spectrum of electromagnetic energy between audio and light: 500 KHz to 300 GHz.

Radio waves

Mobile communications; Mobile phones

Electromagnetic energy with frequencies in the 3000 hertz (3 kHz) to 300 billion Hertz (300 GHz) portion of the electromagnetic spectrum.

Radio-frequency fingerprinting

Mobile communications; Mobile phones

A process that identifies a cellular phone by the unique "fingerprint" that characterises its signal transmission. RF fingerprinting is one process used to prevent cloning fraud, because a cloned ...