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- W4214925498 abstract "This paper considers a heterogeneous communication model combining (i) conventional unsourced random access, where individual messages are recovered at the receiver, and (ii) semantics-aware random access, where messages of the transmit-ting users are inherently correlated due to a commonly observed physical phenomenon. We leverage sparse superposition coding with Bayesian message passing decoder performing approximate inference on a graphical model that encodes the underlying correlations, and accounts for the structure of the applied sparse superposition code. We consider noncoherent operation without channel state information at the transmitter and at the receiver. We perform numerical simulations to characterize the trade-offs between the two operational modes." @default.
- W4214925498 created "2022-03-05" @default.
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- W4214925498 date "2021-10-31" @default.
- W4214925498 modified "2023-10-03" @default.
- W4214925498 title "Sparse Superposition Coding with Bayesian Detection for Correlated Unsourced Random Access" @default.
- W4214925498 doi "https://doi.org/10.1109/ieeeconf53345.2021.9723293" @default.
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