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• W4322720736 abstract "<p>6G will connect heterogeneous intelligent agents to make them natively operate complex cooperative tasks. When connecting intelligence, two main research questions arise to identify how artificial intelligence and machine learning models behave depending on: i) their input data quality, affected by errors induced by interference and additive noise during wireless communication; ii) their contextual effectiveness and resilience to interpret and exploit the meaning behind the data. Both questions are within the realm of semantic and goal-oriented communications. With this paper we investigate on how to effectively share communication spectrum resources between a legacy communication systems (i.e., data-oriented) and a new goal-oriented edge intelligence one. Specifically, we address the scenario of an enhanced Mobile Broadband (eMBB) service, i.e., a user uploading a video stream to a radio access point, interfering with an edge inference system, in which a user uploads images to a Mobile Edge Host that runs a classification task. Our objective is to achieve, through cooperation, the eMBB service highest data rate, subject to a target goal-effectiveness of the edge inference service, namely the probability of confident inference on time. We first formalize a general definition of goal in the context of wireless communications. This includes the goal-effectiveness, (i.e., the goal achievability rate, or the probability of achieving the goal), as well as that of goal cost (i.e., the network resource consumption needed to achieve the goal with target effectiveness). We argue and show, through numerical evaluations, that communication reliability and goal-effectiveness are not straightforwardly linked. Then, after a performance evaluation aiming to clarify the difference between communication performance and goal-effectiveness, a long-term optimization problem is formulated and solved via Lyapunov stochastic network optimization tools, to guarantee the desired target performance. Finally, our numerical results assess the advantages of the proposed optimization, and the superiority of the goal-oriented strategy against baseline 5G compliant legacy approaches, under both stationary and non-stationary communication (and computation) environments. </p>" @default.
• W4322720736 created "2023-03-03" @default.
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• W4322720736 date "2023-03-02" @default.
• W4322720736 modified "2023-10-14" @default.
• W4322720736 title "6G goal-oriented communications: How to coexist with legacy systems?" @default.
• W4322720736 doi "https://doi.org/10.36227/techrxiv.22189879.v1" @default.
• W4322720736 hasPublicationYear "2023" @default.
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