Abstract
Delay Tolerant Network (DTN) provides communication in environments composed of nodes with heterogeneous characteristics such as frequent disconnections, limited transmission range, dynamic topology, and scarce resources. Data delivery is achieved via the mobility of nodes by employing multi-copy protocols in which each node is allowed to create and transmit multiple copies of each message. The data is delivered at a higher consumption of node energy, buffer space, and network bandwidth. Similarly, buffer space is a critical resource to store and carry messages. Effective management can reduce message drops and increase delivery rate. The existing techniques observe message transmissions to evaluate energy consumption and basic buffer management policies to overcome congestion. In this paper, we have proposed an Energy Estimation based Routing Protocol (EERP) in which instead of number of transmissions the energy quota has been assigned to each message. In addition, buffer management of DTN node has been considered more critical. Therefore, we have proposed a buffer management policy in which messages are dropped based on their level of energy consumption. The simulation results prove that the proposed EERP has performed better in terms of increasing delivery ratio, buffer time average, and reducing message transmission, drop, and hop count average.









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Mr. Qaisar Ayyub and Dr. Sulma Rashid wrote the main manuscript text. Sulma Rashid do the simulations and Dr. Qaisar Ayyub prepared all figures. All authors reviewed the manuscript.”
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Ayub, Q., Rashid, S. Energy Estimation Based Routing Protocol for Delay Tolerant Network. Wireless Pers Commun 138, 1363–1383 (2024). https://doi.org/10.1007/s11277-024-11569-3
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DOI: https://doi.org/10.1007/s11277-024-11569-3