Transitional approaches in DTN routing algorithm

We propose the routing algorithm which improves nonstandard parts in ProPhet while keeping its interoperability with the standard. Key idea is that contact duration is reflected for delivery predictability (DP) calculation, and bundle forwarding decision and sorting algorithm are optimized based on how many times each bundle is forwarded. Through the analysis, we show that the proposed DP calculation method is robust even in DP distortion environments, and increases the possibility to improve the performance of forwarding decision and sorting.