WiFi-Direct is a P2P wireless interconnection technology

WiFi Direct allows devices in a wireless network to connect to each other without going through a wireless router. Similar in principle to Bluetooth technology, the standard allows wireless devices to be connected point-to-point. More importantly, WiFi Direct allows a single WiFi device to establish multiple wireless connections at the same time, which is the key technology for many new forms of WiFi applications.

WiFi Direct is a P2P wireless interconnection technology, and the network established by it is an improved AD hoc network, which adopts wireless communication mode and WiFi network mode: Infrastructure Mode and Ad Hoc Mode, WiFi Direct mainly solve the connection problem of physical layer, including device discovery and service discovery. Related technologies are NFC and DLNA.

(1) Features of WiFi Direct:

Mobile portability; Immediate availability; Ease of use; Secure and simple connections

(2) Target of WiFi Direct:

Share content; Synchronize data; Direct printing; Gaming social

(3) Other features of WiFi Direct:

No AP or router is required. soft AP is built into the device. Only one of the two parties in the peer connection needs to support WiFi Direct to realize wireless interconnection. Devices can be connected in a one-to-one or one-to-many manner. WiFi Direct CERTIFIED must comply with 802.11g protocol

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