Excess Distortion Exponent Analysis for Semantic-Aware MIMO Communication Systems

Yuxuan Shi; Shuo Shao; Yongpeng Wu; Wenjun Zhang; Xiang Gen Xia; Chengshan Xiao

doi:10.1109/TWC.2023.3238463

Excess Distortion Exponent Analysis for Semantic-Aware MIMO Communication Systems

Yuxuan Shi, Shuo Shao^*, Yongpeng Wu^*, Wenjun Zhang, Xiang Gen Xia, Chengshan Xiao

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

In this paper, the analysis of excess distortion exponent for joint source-channel coding (JSCC) in semantic-aware communication systems is presented. By introducing an unobservable semantic source, we extend the classical results by Csiszar to semantic-aware communication systems. Both upper and lower bounds of the exponent for the discrete memoryless source-channel pair are established. Moreover, an extended achievable bound of the excess distortion exponent for MIMO systems is derived. Further analysis explores how the block fading and numbers of antennas influence the exponent of semantic-aware MIMO systems. Our results offer some theoretical bounds of error decay performance and can be used to guide future semantic communications with joint source-channel coding scheme.

Original language	English
Pages (from-to)	5927-5940
Number of pages	14
Journal	IEEE Transactions on Wireless Communications
Volume	22
Issue number	9
DOIs	https://doi.org/10.1109/TWC.2023.3238463
Publication status	Published - 1 Sept 2023
Externally published	Yes

Keywords

MIMO block fading channel
Semantic-aware communication
excess distortion exponent
joint source-channel coding

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title = "Excess Distortion Exponent Analysis for Semantic-Aware MIMO Communication Systems",

abstract = "In this paper, the analysis of excess distortion exponent for joint source-channel coding (JSCC) in semantic-aware communication systems is presented. By introducing an unobservable semantic source, we extend the classical results by Csiszar to semantic-aware communication systems. Both upper and lower bounds of the exponent for the discrete memoryless source-channel pair are established. Moreover, an extended achievable bound of the excess distortion exponent for MIMO systems is derived. Further analysis explores how the block fading and numbers of antennas influence the exponent of semantic-aware MIMO systems. Our results offer some theoretical bounds of error decay performance and can be used to guide future semantic communications with joint source-channel coding scheme.",

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AU - Shao, Shuo

AU - Wu, Yongpeng

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AU - Xiao, Chengshan

PY - 2023/9/1

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AB - In this paper, the analysis of excess distortion exponent for joint source-channel coding (JSCC) in semantic-aware communication systems is presented. By introducing an unobservable semantic source, we extend the classical results by Csiszar to semantic-aware communication systems. Both upper and lower bounds of the exponent for the discrete memoryless source-channel pair are established. Moreover, an extended achievable bound of the excess distortion exponent for MIMO systems is derived. Further analysis explores how the block fading and numbers of antennas influence the exponent of semantic-aware MIMO systems. Our results offer some theoretical bounds of error decay performance and can be used to guide future semantic communications with joint source-channel coding scheme.

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Excess Distortion Exponent Analysis for Semantic-Aware MIMO Communication Systems

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