面向6G 移动通信的极化多址接入技术

摘要：极化码是第一种达到信道容量的编码方案，是5G信道编码方案之一。面对6G更高可靠度、更低时延、更大连接的业务需求，提出面向6G的极化多址接入技术。极化多址接入技术能够充分利用多用户之间的极化效应，以实现更高的系统容量和系统接入能力。有源极化编码接入方案能够满足6G大容量高可靠的传输需求，无源极化编码随机接入方案能够提高系统的接入能力。这些方案表明，极化多址接入技术能够满足6G移动通信系统的超高可靠、高频谱效率、大容量的传输需求，是重要的候选技术之一。

关键词：多址接入；极化编码；随机接入；非正交多址接入

Abstract: Polar codes are the first encoding scheme to achieve channel capacity and are employed in one of the channel coding schemes in 5G. Faced with the demands of 6G for higher reliability, lower latency, and increased connectivity, multiple polar-coded multiple access techniques tailored for 6G are proposed. The polar-coded multiple access technique leverages the polarization effect among multiple users to achieve higher system capacity and access capability. The sourced polar-coded multiple access scheme can meet the high-capacity and high-reliability transmission requirements of 6G, while the unsourced polar-coded random access scheme enhances the system's access capability. These approaches indicate that polar-coded multiple access technologies can address the ultra-high reliability, high spectral efficiency, and large-capacity transmission requirements of 6G mobile communication systems, making them a crucial candidate technology.

Keywords: multiple access, polar codes, random access, non-orthogonal multiple access