Determining Device In-Range Proximity

A client node, comprising:

• a database comprising fingerprint data associated with the client node and a plurality of second client nodes, the fingerprint data including signal strength data of a plurality of communication endpoints measured by each of the client node and the plurality of second client nodes;
• and
• processing logic configured to process the signal fingerprint data to identify an individual second client node of said plurality of second client nodes within a viable range for device-to-device (D2D) communication, the viable range determined to exist in response to a match between a first fingerprint of the client node and a second fingerprint of the individual second client node,
• wherein said processing logic is further operable to initiate a D2D communications session with said individual second client node that is within said viable range for D2D communication.