Читать книгу Fog Computing - Группа авторов - Страница 38

Mobility context includes a number of movement-related factors that influence the accessibility and connectivity between the tenant-side client and the fog node. In particular, mobility context includes the following elements [27, 62, 63]:

 Current location and destination, which represents the current physical geo-location and the destination of the tenant-side client and the fog node, which are the basic parameters to identify the potential encounter rate between the two nodes, based on measuring the possible movement routes.

 Movement, which includes the moving frequency (i.e. how often the entity is moving), maximum and average moving speed, acceleration rate (i.e. moving speed of a specific time), moving direction, moving path, and route. Specifically, the system requires continual up-to-date information of these factors in order to adjust the mobility context reasoning.