Adaptive Forwarding to Match Mobility Characteristics in Delay Tolerant Networks

摘要: In this paper, we propose an adaptive and opportunistic forwarding mechanism that is able to match mobility characteristics in Delay Tolerant Networks (DTNs). Our protocol, Seeker, empowers nodes with the ability estimate future contact opportunities based on a history of pair-wise contacts. Furthermore, Seeker adjust rewind buffering decisions fly. This ensures good trade-off between reliability resource-efficiency, even when disconnections are frequent hard predict. Essentially, novelties (1) its relays without having global network view (2) flexibility operate under different conditions. These features particularly important as DTNs, devices further restricted by strict resource constraints contemporaneous path may never exist two network. Using simulations synthetic model real traces, show adapt accordingly diverse scenarios achieves high performance low overhead.