Method of congestion control in information centric network based environment with delay tolerant networking and recording medium and device for performing the same

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

• when a first node contacts a second node, exchanging information with the second node;
• identifying whether anti-flag is stored in messages in the first node, wherein the anti-flag is assigned when each message arrives at a destination node;
• first flooding the messages in the first node which do not include the anti-flag to the second node;
• and
• second flooding the messages in the first node which include the anti-flag to the second node according to at least one of the following situation information including:
• a hop count, a Time-To-Live (TTL), a number of requester nodes of the corresponding message, and a mobility pattern of the first node, or restricting the second flooding to the second node.

A congestion control device for controlling message flooding between nodes in reply to situation information of an information centric network environment with delay tolerant networking, the congestion control device comprising:

• a memory and a processor;
• a message storage unit which stores a message list including messages to deliver to another node and information associated with the messages;
• a Pending Anti Interest and Data (PAID) table storage unit which stores a PAID table having a record of anti-flag for a message delivered to a destination node that provides data of the message among the messages stored in the message storage unit;
• and
• a message flooding unit which exchanges the message list with other node upon contact with another node, identifies the presence or absence of anti-flag of the messages included in the message list using the PAID table, floods a non-anti-flagged. message among the messages included in the message list to other node, and floods an anti-flagged message among the messages included in the message list to other node according to at least one of situation information including a hop count, a Time-To-Live (TTL), and a number of requester nodes of the corresponding message and a mobility pattern of a node, or restricts the flooding to other node.