Device-to-Device (D2D) Communication

//Device-to-Device (D2D) Communication

Device-to-Device (D2D) Communication

Device-to-Device (D2D) Communication

Device-to-Device (D2D) Communication

Voice and data traffic between two mobile devices usually go from one mobile device to the radio network, from the radio network to the core network, and from the radio network to the other  mobile device.

However, Device-to-Device (D2D) communication allows two mobile devices to directly exchange voice or data traffic without this traffic traveling through the network.

D2D communication allows communication between the devices that are within a pre-defined proximity range such as 20-500 m.

D2D communication is part of the overall framework of Proximity Services (ProSe) that includes several other aspects of direct communications. D2D communication is often referred as LTE-Direct.

Example Applications of D2D Communication

D2D Communication is very useful in a variety of scenarios. Some of these scenarios today are served with non-cellular mechanisms. However, support for these scenarios would open up new market segments for cellular service providers.

Friends and relatives and colleagues can be automatically discovered within the target proximity.

Vehicle-to-Vehicle communication can help alleviate traffic congestion and even accidents.

Shops can send out real-time advertisements about their sale to interested wireless  subscribers.

Public Safety personnel, such as firemen and medical staff, can communicate with one another when needed.

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