Design of Massive Unsourced Random Access over Rician Channels

被引：2

作者：

Tian, Feiyan ^{[1
]}

Chen, Xiaoming ^{[1
]}

Liu, Lei ^{[2
]}

Ng, Derrick Wing Kwan ^{[3
]}

机构：

[1] Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou, Peoples R China

[2] Japan Adv Inst Sci & Technol, Sch Informat Sci, Nomi, Ishikawa, Japan

[3] Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW, Australia

来源：

SPAWC 2021: 2021 IEEE 22ND INTERNATIONAL WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS (IEEE SPAWC 2021) | 2020年

关键词：

Unsourced random access; 6G; mMTC;

D O I：

10.1109/SPAWC51858.2021.9593137

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we investigate an unsourced random access protocol for massive machine-type communications (mMTC) in the sixth-generation (6G) wireless networks with sporadic data traffic. Firstly, a universal framework of massive unsourced random access, including a two-layer signal coding, i.e., an outer code and an inner code, is provided to achieve efficient massive access with low complexity. Then, considering Rician fading in the scenario of mMTC, we design a novel algorithm for codeword activity detection in unsourced random access based on the distribution of the received signal by exploiting the maximum likelihood (ML) estimation. Finally, simulation results validate the effectiveness of the proposed algorithm.

引用

页码：341 / 345

页数：5

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