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arXiv 2104.01402eess.SPcs.ITmath.IT
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第六代无线通信网络中的稀疏码多址接入技术:最新进展与未来发展方向

Sparse Code Multiple Access for 6G Wireless Communication Networks: Recent Advances and Future Directions

Lisu Yu, Zilong Liu, Miaowen Wen, Donghong Cai, Shuping Dang, Yuhao Wang, Pei Xiao

摘要:

随着5G网络在许多不同国家的推出,现在是时候研究如何将其升级和扩展到6G,后者有望实现万物互联,并为智能生活发展一个无处不在的智能移动世界。为了实现通信的这一史诗般的飞跃,本文对稀疏码多址(SCMA)在6G无线通信系统中的应用进行了概述和展望,SCMA是一种新兴的破坏性非正交多址接入(NOMA)方案,用于实现大规模连接。我们建议将SCMA应用于大规模分布式接入系统(MDAS),其架构基于基于光纤的可见光通信(FVLC),超密集网络(UDN)和NOMA。在这个框架下,我们考虑了光前传和无线接入链路之间的相互作用。为了刺激更多即将到来的研究在这一领域,我们概述了一些有前途的方向与SCMA更快,更可靠,更有效的多址接入在未来的6G通信网络。

英文摘要:

As 5G networks rolling out in many different countries nowadays, the time has come to investigate how to upgrade and expand them towards 6G, where the latter is expected to realize the interconnection of everything as well as the development of a ubiquitous intelligent mobile world for intelligent life. To enable this epic leap in communications, this article provides an overview and outlook on the application of sparse code multiple access (SCMA) for 6G wireless communication systems, which is an emerging disruptive non-orthogonal multiple access (NOMA) scheme for the enabling of massive connectivity. We propose to apply SCMA to a massively distributed access system (MDAS), whose architecture is based on fiber-based visible light communication (FVLC), ultra-dense network (UDN), and NOMA. Under this framework, we consider the interactions between optical front-hauls and wireless access links. In order to stimulate more upcoming research in this area, we outline a number of promising directions associated with SCMA for faster, more reliable, and more efficient multiple access in future 6G communication networks.

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