ИСТИНА

This article discusses a new model for building applied mobile services that use location information and operate in a certain limited spatial area. As a basis for building such applications, a new interpretation of the standard features of Wi-Fi Direct is used. The Wi-Fi Direct specification, in addition to defining the form of device connection, also introduces the concept of a service, when one device offers some service functions to another within the framework of a Wi-Fi Direct connection. Each device can both represent several services and send out search requests for other services. Based on the network proximity architecture, where connections are not used, and wireless network advertising tools are used to convey user information, Wi-Fi Direct services can be considered as key-value databases that exist on mobile devices and can be searched by keys in some local areas. It is these storages that underlie the two models of application services presented in the article that use the spatial proximity of mobile devices: direct messaging between devices without centralized control and the hyper-local Internet model.