Contextual Wireless Video Semantic Communication in MIMO-OFDM Systems
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866909011391021056 |
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| author | Xie, Bingyan Zhou, Cong Shi, Yuxuan Feng, Biqian Wu, Yongpeng Zhang, Wenjun |
| author_facet | Xie, Bingyan Zhou, Cong Shi, Yuxuan Feng, Biqian Wu, Yongpeng Zhang, Wenjun |
| contents | This paper proposes a MIMO-OFDM-based context video semantic transmission framework, namely M-CVST, for robust video communication over multi-path multiple-input multiple-output (MIMO) channels. It introduces a context-subcarrier correlation map that aligns video feature context with groups of MIMO subcarriers. To leverage the time-correlated nature of multi-path channels, a recursive subcarrier sampling method paired with time-correlated reference embedding is designed, enabling the use of previously sampled MIMO subcarrier CSI to enhance channel state awareness in the entropy coding model. Numerical results verify the superiority of proposed M-CVST over MIMO multi-path channels compared to other semantic schemes and traditional separated schemes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_01798 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Contextual Wireless Video Semantic Communication in MIMO-OFDM Systems Xie, Bingyan Zhou, Cong Shi, Yuxuan Feng, Biqian Wu, Yongpeng Zhang, Wenjun Multimedia This paper proposes a MIMO-OFDM-based context video semantic transmission framework, namely M-CVST, for robust video communication over multi-path multiple-input multiple-output (MIMO) channels. It introduces a context-subcarrier correlation map that aligns video feature context with groups of MIMO subcarriers. To leverage the time-correlated nature of multi-path channels, a recursive subcarrier sampling method paired with time-correlated reference embedding is designed, enabling the use of previously sampled MIMO subcarrier CSI to enhance channel state awareness in the entropy coding model. Numerical results verify the superiority of proposed M-CVST over MIMO multi-path channels compared to other semantic schemes and traditional separated schemes. |
| title | Contextual Wireless Video Semantic Communication in MIMO-OFDM Systems |
| topic | Multimedia |
| url | https://arxiv.org/abs/2605.01798 |