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Semantic_Source_Coding_for_Two_Users_with_Heterogeneous_Goals.pdf (396.96 kB)
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Semantic Source Coding for Two Users with Heterogeneous Goals

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posted on 25.05.2022, 22:33 authored by Pouya AgheliPouya Agheli, Nikolaos PappasNikolaos Pappas, Marios Kountouris
We study a multiuser system in which an information source provides status updates to two monitors with heterogeneous goals. Semantic filtering is first performed to select the most useful realizations for each monitor. Packets are then encoded and sent so that each monitor can timely fulfill its goal. In this regard, some realizations are important for both monitors, while every other realization is informative for only one monitor. We determine the optimal real codeword lengths assigned to the selected packet arrivals in the sense of maximizing a weighted sum of semantics-aware utility functions for the monitors. Our analytical and numerical results provide the optimal design parameters for different arrival rates and highlight the improvement in timely status update delivery using semantic filtering and source coding.

Funding

Semantics-empowered Wireless Connectivity: Theoretical and Algorithmic Foundations

European Research Council

Find out more...

Swedish Research Council (VR), ELLIIT, and CENIIT

History

Email Address of Submitting Author

pouya.agheli@eurecom.fr

ORCID of Submitting Author

0000-0003-3178-0911

Submitting Author's Institution

EURECOM

Submitting Author's Country

France