With the development trend of wireless communication, the main application scenarios of D2D communication in 5G network are as follows:
Local service
Local service generally can be understood as the user side of the business data is not through the network side (such as the core network) and directly for the local transmission.
A typical case of local business is the application of social, social characteristics can be regarded as the application of adjacent D2D technology application based on one of the most basic scenes. For example, the user through the discovery of D2D function to find areas adjacent to interested users; through the D2D communication function, can transmit data between adjacent users, such as content sharing, interactive …show more content…
If the D2D technology combines with the Internet of things, it is possible to produce a real sense of the interconnection of wireless communications network. One of the D2D communication scenarios for networking enhancements to the car networking in V2V (Vehicle-to-Vehicle) communication. For example, when running at high speed, it can make an alarm to other vicinal vehicles through D2D communication before the operation of lane change and deceleration, and other vehicles around the vehicle based on the received warning to warn their drivers, even an emergency situation that vehicle autonomous control themselves, to reduce emergency response time of the driver, to reduce the incidence of traffic accidents. In addition, through the D2D discovering technology, the vehicle can be more reliably detect and identify specific vehicles in the vicinity, such as potentially dangerous vehicles when passing crossing or with specific properties need to pay special attention to the vehicle (such as carrying dangerous goods vehicles, buses, …show more content…
The wireless channel is an open channel, any wireless device can have the appropriate per capita the information obtained by tapping the wireless channel. Although the wired communication network may also have been tapped, but this requires wiretapping eavesdropper can contact the communication cable is eavesdropping, but also the need for communication cables for special treatment, so it is easy to be found. While wireless eavesdropping is relatively easy, just need the right the wireless receiving device, and it is difficult to be
Local service
Local service generally can be understood as the user side of the business data is not through the network side (such as the core network) and directly for the local transmission.
A typical case of local business is the application of social, social characteristics can be regarded as the application of adjacent D2D technology application based on one of the most basic scenes. For example, the user through the discovery of D2D function to find areas adjacent to interested users; through the D2D communication function, can transmit data between adjacent users, such as content sharing, interactive …show more content…
If the D2D technology combines with the Internet of things, it is possible to produce a real sense of the interconnection of wireless communications network. One of the D2D communication scenarios for networking enhancements to the car networking in V2V (Vehicle-to-Vehicle) communication. For example, when running at high speed, it can make an alarm to other vicinal vehicles through D2D communication before the operation of lane change and deceleration, and other vehicles around the vehicle based on the received warning to warn their drivers, even an emergency situation that vehicle autonomous control themselves, to reduce emergency response time of the driver, to reduce the incidence of traffic accidents. In addition, through the D2D discovering technology, the vehicle can be more reliably detect and identify specific vehicles in the vicinity, such as potentially dangerous vehicles when passing crossing or with specific properties need to pay special attention to the vehicle (such as carrying dangerous goods vehicles, buses, …show more content…
The wireless channel is an open channel, any wireless device can have the appropriate per capita the information obtained by tapping the wireless channel. Although the wired communication network may also have been tapped, but this requires wiretapping eavesdropper can contact the communication cable is eavesdropping, but also the need for communication cables for special treatment, so it is easy to be found. While wireless eavesdropping is relatively easy, just need the right the wireless receiving device, and it is difficult to be