下一代多址技术的挑战与关键进展

摘要：下一代多址技术将突破以正交性为基础的设计原则，通过非正交性的设计和更先进的信息处理技术获得更高的谱效和能效。针对海量随机接入与非正交多址（NOMA）面临的不同挑战，认为不同的接入方法与接收机设计可大幅提升大规模接入与数据传输的效率。此外，人工智能、大规模多输入多输出（MIMO）和多基站协作等技术的蓬勃发展也为下一代多址技术的发展提供了新的可能。

关键词：海量随机接入；非正交多址；人工智能；大规模MIMO

Abstract: The next generation of multiple access technology will break through the design principles based on orthogonality, and achieve higher spectral and energy efficiency through non-orthogonality design and more advanced information processing technologies. In response to the different challenges faced by massive random access and non-orthogonal multiple access (NOMA), it is believed that different access methods and receiver designs can significantly improve the efficiency of large-scale access and data transmission. In addition, the flourishing development of technologies such as artificial intelligence, massive multiple input multiple output (MIMO), and multi-cell cooperation has also provided new possibilities for the development of next-generation multiple access technology.

Keywords: massive random access; non-orthogonal multiple access; artificial intelligence; massive MIMO