Delay Tolerant Networking (DTN)

Intermittent DTN I. Introduction, basically the network communication link exists only temporarily, not creating the end to terminate the data transmission connection. The delay tolerant network (DTN) extended existing protocols and systematically cleanly adjusted to improve interruption of network communication when connections are intermittent, intermittent, and / or prone to occur It is a new research field in the network field including devising a new protocol in a way. And when doing, the basic need to use multiple heterogeneous networks for data transmission.

This delay / interruption / tolerant network (DTN) program for trillion is transferred to Internet (IOT) of trillion things of "things", 1 billion people earn the following $ 1 day 2 . We are familiar with them (please refer to the explanation widely, Ignacio that mass to see with reference to the following organizational communication and design by combining with human communication) Most people are non - Since there is a high possibility that an official communication interruption will occur, stable communication between the source node and the source node of the target route at the time must be stored in each node unless it is a forward chronotope. A plurality of nodes DTN for data transfer between the source node and the destination node to achieve a balance between automatic pricing control relay auction data bits and expansion with clock coin impact beam, power and deflation, It is caused by unlimited supply

Communication other than the conventional spacecraft in the earth orbit point link is performed by the deep space network. You need to manually configure each of these scheduling and data links. In the late 1990s, NASA and Google decided to delay the research tolerant network (DTN), a new network protocol, automate this process, and allow the network-mediated transmission node, considering that the spacecraft , Temporarily lost contact with that fact and because they are behind the moon or the planet, or because of space weather, the connection is interrupted. In this case, the DTN looks like a standard TCP / IP internet protocol, such as discarding them instead of retransmitting the data packets. NASA conducted its so-called first field test in November 2008 "Deep Space Internet." Since March 2009, between the Earth and the International Space Station (now known as resistance to interference networks) DTN communication test is engaged in. I expected this to last until March 2014