Research on the Buffer Management Algorithm in DTN

In Delay and Disruption Tolerant Networks (DTN), because of its intermittent connectivity features, resulting in packet transmission process cannot ensure end to end path, usually employ a "store - carry - forwards" approach to forward the message. Currently the key method to solve information exchange in DTN is select forwarding nodes effectively. Made the information deliver to the destination successfully within a short time and reduce resource overhead. At the same time, the load of selected nodes will be increased correspondingly and the requirement to the buffer also increased, then the management of the buffer become particularly important. The buffer management not only includes the message dropping, but also includes message forwarding. In this paper, we mainly analysis of the existing buffer management algorithm, and also analysis some social attributes in favor of selecting forwarding nodes in DTN. We put forward the buffer management algorithm based on social attributes in DTN in future work.