Abstract
Until fifth-generation communications, researchers focused on transmitting the data fast and accurately for many users. For this, many studies have been shown around the relay system, with achievable rate maximization considering the co-interference. These are the first Shannon communication level, which focuses on bit transmission. Spurred by the advance of deep learning, the fusion of artificial intelligence (AI) and communications or networks emerged. In the second and third level of the Shannon-Weaver model, contextual meaning and reasoning are the objectives of transmission. Fortunately, AI has shown tremendous empirical results for contextual reasoning. In the physical (PHY) layer, joint source-channel coding (JSCC) is studied broadly. The variational autoencoder shows a strong background in research. In this chapter, we introduce the concepts of semantic communication (SC) and semantic networking. In addition, we introduce the performance enhancements such as loss of information, rate maximization, and robustness of noisy channels. Moreover, we provide the performance gain cited from research papers.
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Yun, W.J., Park, S., Lee, R., Park, J., Ko, YC., Kim, J. (2024). Semantic Communications and Networking. In: Lin, X., Zhang, J., Liu, Y., Kim, J. (eds) Fundamentals of 6G Communications and Networking. Signals and Communication Technology. Springer, Cham. https://doi.org/10.1007/978-3-031-37920-8_29
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DOI: https://doi.org/10.1007/978-3-031-37920-8_29
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