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A Comparative Analysis of Well-known Drop and Buffer Management Policies in Delay Tolerant Networks

Youssef Harrati and Abdelmounaïm Abdali
Cadi Ayyad University, faculty of Sciences & Techniques, Marrakech, Morocco
Abstract—Delay Tolerant networks (DTN) are mobile networks that aim to bypass classic networks limits in difficult environments characterized by intermittent connectivity, power outages, and difficult topographies. Delay tolerant networks follow the Store-Carry-and-Forward mechanism. Hence, a node Stores messages in its own memory and carry it for long time until the rise of a delivery or forward opportunity, then it transmits it to the other node(s). In the present article, we are comparing famous DTN routing protocols to a set of buffer management policies and scheduling algorithms by changing TTL values and at the end of our simulations we analyze the results we obtained in terms of number of delivered messages, the network overhead and the average latency.
 
Index Terms—Delay tolerant network; drop policy; routing; scheduling; congestion

Cite: Youssef Harrati and Abdelmounaïm Abdali, "A Comparative Analysis of Well-known Drop and Buffer Management Policies in Delay Tolerant Networks," Journal of Communications, vol. 14, no. 4, pp. 275-280, 2019. Doi: 10.12720/jcm.14.4.275-280
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