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The Delay/Disruption Tolerant Network (DTN) architecture as shown in the figure is intended to deal with the interruptions and significant delays that come with space communications. DTN uses a store-and-forward transmission technique with optional custody transfer, which allows data to be transferred in small bundles and stored at intermediate nodes until a link becomes available.
The Bundle Protocol (BP) is a DTN stack protocol that provides custody-based data transport in space communications. LTP augments BP by assisting in data loss over space channels via heavy retransmission, hence minimizing the impacts of severe data loss.
In this study, we present a method of bundle aggregation with optimal delivery time in a multi-hop scenario. Several PC-based tests were carried out considering the distance between nodes, the contact time and error rate caused by several factors.
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IEEE/ICACT20240287 Slide.12
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