Methods and systems for dynamic fragmentation of packets by communication network nodes

A computer-readable data storage medium storing program instructions that, when executed by a processor in a first node in a communication network having a plurality of nodes, control the first node to perform a method for dynamically fragmenting packets, said method comprising:

• generating a plurality of fragments by splitting a packet based on a value of a fragment size parameter;
• sending a first of said plurality of fragments to a receiving node;
• determining a value of a transmission success parameter for the first fragment, the transmission success parameter indicating whether the first fragment was successfully received;
• updating a value of a link quality parameter based on the value of the transmission success parameter, the value of the link quality parameter representing a chance a second fragment having the same size as the first fragment will be successfully received;
• comparing the value of the link quality parameter and a value of a quality threshold parameter;
• and
• changing the value of the fragment size parameter based on a result of the comparison.

A node in a network having a plurality of nodes, said node comprising:

• a processor and a computer-readable data storage medium coupled to the processor;
• and
• program instructions stored in the computer-readable medium, the program instructions, when executed by the processor, controlling the node to:
• generate a plurality of fragments by splitting a packet based on a value of a fragment size parameter;
• send a first of said plurality of fragments to a receiving node;
• determine a value of a transmission success parameter for the first fragment, the transmission success parameter indicating whether the first fragment was successfully received;
• update a value of a link quality parameter based on the value of the transmission success parameter, the value of the link quality parameter representing a chance a second fragment having the same size as the first fragment will be successfully received;
• compare the value of the link quality parameter and a value of a quality threshold parameter;
• and
• change the value of the fragment size parameter based on a result of the comparison.