Orthogonal Model Division Multiple Access

被引：6

作者：

Liang, Haotai ^{[1
]}

Liu, Kaijun ^{[1
]}

Liu, Xiaoyi ^{[1
]}

Jiang, Hongchao ^{[1
]}

Dong, Chen ^{[1
]}

Xu, Xiaodong ^{[1
,2
]}

Niu, Kai ^{[3
,4
]}

Zhang, Ping ^{[1
,2
]}

机构：

[1] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China

[2] Peng Cheng Lab, Dept Broadband Commun, Shenzhen 518066, Guangdong, Peoples R China

[3] Beijing Univ Posts & Telecommun, Key Lab Universal Wireless Commun, Minist Educ, Beijing 100876, Peoples R China

[4] Peng Cheng Lab, Shenzhen 518066, Peoples R China

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2024年 / 23卷 / 09期

关键词：

Semantic orthogonal signals; orthogonal-model multiple access (O-MDMA); deep joint source and channel coding (Deep[!text type='JS']JS[!/text]CC);

D O I：

10.1109/TWC.2024.3384421

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Multiple access technologies are critical technologies in every communication era. As a promising paradigm for next-generation mobile communication, semantic communication has explored new semantic information space resources. Based on the characteristic that different semantic models cannot understand semantic information generated by other models, we propose the concept of semantic orthogonal signals. Combining the advantages of Deep joint source and channel coding (DeepJSCC), an Orthogonal-Model Division Multiple Access (O-MDMA) technology that can be applied to any semantic model is proposed. The essence of O-MDMA is to migrate the anti-interference capability of DeepJSCC to the multi-user capacity. Compared with Non-Orthgonal Multiple Access (NOMA) and Model Division Multiple Access (MDMA) technologies, O-MDMA has better performance. The O-MDMA can be integrated with NOMA, and experimental results show that the combined technique can save more bandwidth.

引用

页码：11693 / 11707

页数：15

共 35 条

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