On the Potential of Enhancing Delay-Tolerant Routing Protocols via Age of Information

On the Potential of Enhancing Delay-Tolerant Routing Protocols via Age of Information

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In this paper, we study the potential of using the metric of Age of Information (AoI) for enhancing delay-tolerant routing protocols.The latter have been proposed for alleviating the impact of long roundtrip time in networks operating in harsh environments, e.g., in distributed applications deployed in a desert/sparsely populated sukin body lotion woolworths area without infrastructure, a space network, etc.Delay-tolerant routing protocols can prevent excessive packet timer expiration, but do not provide any packet delivery time guarantee.

Thus, they are unsuitable for time-sensitive applications that are more intensely desired nowadays in the next generation networking applications.By incorporating AoI into the operation of delay-tolerant routing protocols, we aim at devising routing protocols that can cope with both long propagation times and challenges related to time-sensitivity in packet delivery.More specifically, fuchsia velvet tablecloth in this work, we modify the operation of a well-known delay-tolerant routing protocol, namely FRESH, to make AoI-based packet forwarding decisions, aiming at achieving specific delay guarantees regarding the end-to-end delivery time.We investigate the advantages and disadvantages of such an approach compared to the traditional FRESH protocol.This work serves as a cornerstone for successfully demonstrating the potential of exploiting AoI in delay-tolerant routing and its applications.