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Performance Limits of a Deep Learning-Enabled Text Semantic Communication Under Interference
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DOI：10.1109/TWC.2024.3370497.png)
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Although deep learning (DL)-enabled semantic communication (SemCom) has emerged as a 6G enabler by minimizing irrelevant information transmission - minimizing power usage, bandwidth consumption, and transmission delay, its benefits can be limited by radio frequency interference (RFI) that causes substantial semantic noise. Such semantic noise's impact can be alleviated using an interference-resistant and robust (IR2) SemCom design, though no such design exists yet. To stimulate fundamental research on IR2 SemCom, the performance limits of a popular text SemCom system named DeepSC are studied in the presence of (multi-interferer) RFI. By introducing a principled probabilistic framework for SemCom, we show that DeepSC produces semantically irrelevant sentences as the power of (multi-interferer) RFI gets very large. We also derive DeepSC's practical limits and a lower bound on its outage probability under multi-interferer RFI, and propose a (generic) lifelong DL-based IR2 SemCom system. We corroborate the derived limits with simulations and computer experiments, which also affirm the vulnerability of DeepSC to a wireless attack using RFI.
Keyword:
Semantics
Decoding
Wireless communication
Symbols
Vectors
Receivers
Transformers
6G
DL
RFI
IR2 SemCom
performance limits
probabilistic framework
期刊
IF:
10.7
论文数:
1.3W
被引数:
5.3W
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