Nested Construction of Polar Codes for Blind Detection

被引：6

作者：

Wang, Xinyi ^{[1
]}

Cao, Congzhe ^{[2
]}

Sun, Ce ^{[1
]}

Fei, Zesong ^{[1
]}

Yuan, Jinhong ^{[3
]}

Xiao, Ming ^{[4
]}

机构：

[1] Beijing Inst Technol, Sch Informat & Elect, Beijing 10081, Peoples R China

[2] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 1H9, Canada

[3] Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia

[4] KTH Royal Inst Technol, Sch Elect Engn & Comp Sci, S-10044 Stockholm, Sweden

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2020年 / 9卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Polar codes; 5G mobile communication; Decoding; Indexes; Generators; Reliability; blind detection; nested construction; DESIGN;

D O I：

10.1109/LWC.2020.2966624

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this letter, we propose a novel polar coding scheme for blind detection in 5G systems. In the proposed scheme, the codewords for different aggregation levels (ALs) are constructed in a nested fashion, and a low-latency detection scheme is proposed. The nested construction is exploited to help locate the target physical downlink control channel (PDCCH) candidate. Specifically, the user equipment (UE) firstly attempts to decode PDCCH candidates with a lower AL. In case of decoding failure, a set of candidates with a higher AL are properly selected and decoded. Simulation results show that the proposed scheme can significantly reduce the latency of blind detection in 5G systems with miss-detection rate (MDR) performance close to exhaustive search.

引用

页码：711 / 715

页数：5

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