Content Relevance-Oriented Data Transport Framework for Interplanetary Networks
Robil Daher, Martin Krohn, Mario Donick, Djamshid Tavangarian · 2010
The physical restrictions on network performance due to the large propagation delay between planets as well as the intermittent connect ivity form the main challenge for interaction effectiveness and efficiency of communi cations within Interplanetary Networks (IPNs) as well as other types of Deep-Space Communication Networks (DSCNs). To reduce the influence of this relatively large delay on the efficiency and effectiveness of the communication process, the known solutions intend to prioritize and schedule the files/contents in conjunction with certain prioriti zation schemes. However, because often only a few number of data blocks (DBs) of those fil es, which are addressed to be as most important, are really relevant, the prioritization of such DBs over the rest within the related contents adds new dimension for increasing the effe ctiveness of the communication process, especially in sense of reducing arrival time of rel evant DBs. Therefore, this paper focuses on transporting DBs basing on the “Most Relevant First Transmission (MRFT)” concept on content-level. Accordingly, a novel concept, called Content Relevance-Oriented Data Transport (CRODT), with related system model is presented for prioritizing not only events and application-related data files and packets/mess ages, but also prioritizing data blocks in relation with MRFT concept. In that respect, this p aper discusses the phases of CRODT operation and describes the related system components. After that, a brief use scenario describes the CRODT functionality in a certain envi ronment. Finally, CRODT concept can also be used to improve the performance and response time of terrestrial networks.