Method of data caching in delay tolerant network based on information centric network, computer readable medium and device for performing the method

A computer-readable non-transitory recording medium having recorded thereon a computer program for performing the method of data caching, the method comprising:

• checking a remaining buffer amount and a buffer usage amount of node;
• when the remaining buffer amount of the node exceeds greater than a preset remaining buffer amount threshold, caching data received from other node in the node according to a data caching policy;
• when the buffer usage amount of the node is less than a preset buffer usage amount threshold, deleting data cached in the node from the node according to a data deletion policy;
• and
• setting an initial Time-to-Live (TTL) value of the data received from other node or updating a TTL of the data cached in the node using information of the data received from other node or information of the node.

A device of data caching in delay tolerant network based on information centric network, the, device comprising:

• a processor and a memory;
• a buffer check unit which checks a remaining buffer amount and a buffer usage amount of node;
• a caching policy unit which when the remaining buffer amount of the node is greater than a preset remaining buffer amount threshold, controls to cache data received from other node in the node according to a data caching policy, and when the buffer usage amount of the node is less than a preset buffer usage amount threshold, controls to delete data cached in the node from the node according to a data deletion policy;
• and
• a Time-To-Live (TTL) setting unit which sets an initial TTL value of the data received from other node or updates a TTL of the data cached in the node using information of the data received from other node or information of the node.