Goal-Oriented Communications for Interplanetary and Non-Terrestrial Networks

Abstract

The recent surge in satellite connectivity and deep space exploration calls for scalable communication network architectures that can effectively support increasing numbers of bursty flows, such as those occurring in remote monitoring and in-orbit computation. Yet communications over space links face challenges beyond delay alone: a contact window is a rare chance, and it can be wasted by data that loses task value before feedback returns. This article presents a goal-oriented networking framework for SpaceNets, organized around a common question: will the information still matter when it arrives? The framework has three pillars: (1) goal-oriented sampling and scheduling that can handle highly variable delay processes with memory, (2) grant-free access policies replacing exogenous arrivals with goal-oriented traffic shaping, and (3) flow-control and routing mechanisms that rank, reprocess, forward, or discard packets/bundles according to goal-oriented metrics at intermediate relays. Together, these mechanisms form a store-compute-forward perspective in which application goals guide protocol-level decisions across sampling, access, and relay operation.

7 pages, 5 figures