Semantic-Forward Relaying: A Novel Framework Toward 6G Cooperative Communications

This letter proposes a novel relaying framework, semantic-forward (SF), for cooperative communications towards the sixth-generation (6G) wireless networks. The SF relay extracts and transmits the semantic features, which reduces forwarding payload, and also improves the network robustness against in...

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Bibliographic Details
Published in:IEEE communications letters Vol. 28; no. 3; pp. 518 - 522
Main Authors: Lin, Wensheng, Yan, Yuna, Li, Lixin, Han, Zhu, Matsumoto, Tad
Format: Journal Article
Language:English
Published: New York IEEE 01.03.2024
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
6G mobile communication
Algorithms
cooperative communica- tions
Data mining
Decoding
Encoding
Feature extraction
Payloads
Relaying
relaying systems
Relays
semantic communications
Semantic-forward
Semantics
side information
Wireless networks
ISSN:1089-7798, 1558-2558
Online Access:Get full text
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Summary:This letter proposes a novel relaying framework, semantic-forward (SF), for cooperative communications towards the sixth-generation (6G) wireless networks. The SF relay extracts and transmits the semantic features, which reduces forwarding payload, and also improves the network robustness against intra-link errors. Based on the theoretical basis for cooperative communications with side information and the turbo principle, we design a joint source-channel coding algorithm to iteratively exchange the extrinsic information for enhancing the decoding gains at the destination. Surprisingly, simulation results indicate that even in bad channel conditions, SF relaying can still effectively improve the recovered information quality.
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ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2024.3352916