With the continuous upgrading of wireless communication technology, the types of mobile service businesses continue to increase, and the number of communication terminal equipment has also increased sharply, greatly increasing people's demand for wireless data traffic and network coverage. As one of the research hotspots of wireless transmission, multi-antenna technology can improve system transmission rate, improve spectrum utilization and expand network coverage. According to the different implementation methods, this paper discusses the research status of three typical multi-antenna technologies, such as antenna diversity technology, beamforming technology and spatial multiplexing technology, and looks forward to the potential research direction of multi-antenna technology in the future.
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Wu et al. (2024) studied this question.
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