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Orthogonal Model Division Multiple Access | IEEE Journals & Magazine | IEEE Xplore

Abstract:

Multiple access technologies are critical technologies in every communication era. As a promising paradigm for next-generation mobile communication, semantic communicatio...Show More

Abstract:

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.
Published in: IEEE Transactions on Wireless Communications ( Volume: 23, Issue: 9, September 2024)
Page(s): 11693 - 11707
Date of Publication: 18 April 2024

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