Title:
LOW-COMPLEXITY SIGNAL DETECTION METHOD FOR OTFS-SCMA SYSTEM BASED ON LIST SPHERE DECODING
Document Type and Number:
WIPO Patent Application WO/2024/078068
Kind Code:
A1
Abstract:
Disclosed and provided in the present invention is a low-complexity detection method applied to an OTFS-SCMA system. In the method, a list sphere decoding algorithm is introduced into an OTFS-SCMA uplink system, thereby reducing the computation complexity of traditional MPA detection; and a controllable number of auxiliary computation points are introduced to replenish and update a list sphere decoding search result, thereby improving the convergence of a detector, and obtaining the same detection precision as traditional MPA detection while ensuring that the computation complexity is significantly reduced.
Inventors:
WANG HUA (CN)
KANG ZIQI (CN)
HE DONGXUAN (CN)
YANG TIANCHENG (CN)
KANG ZIQI (CN)
HE DONGXUAN (CN)
YANG TIANCHENG (CN)
Application Number:
PCT/CN2023/106807
Publication Date:
April 18, 2024
Filing Date:
July 11, 2023
Export Citation:
Assignee:
BEIJING INSTITUTE TECH (CN)
International Classes:
H04L25/03; H04L1/00
Domestic Patent References:
| WO2016115531A1 | 2016-07-21 |
Foreign References:
| CN115632916A | 2023-01-20 | |||
| CN109660473A | 2019-04-19 | |||
| CN111314030A | 2020-06-19 | |||
| CN113438191A | 2021-09-24 |
Other References:
LI WANCHEN: "An SCMA System Multi-User Detection Algorithm Based on Threshold Improvement", CHINA NEW TELECOMMUNICATION, no. 2, 20 January 2020 (2020-01-20), pages 68 - 69, XP093158237
TIAN GUODONG: "Multiuser detection algorithm for SCMA based on sphere decoding improvement", CHINA SCIENCEPAPER, vol. 13, no. 8, 23 April 2018 (2018-04-23), pages 943 - 949, XP093158246
ZHANG XUNING: "Partial code-words SCMA detection algorithm based on error compensation", CHINA SCIENCEPAPER, vol. 14, no. 3, 15 March 2019 (2019-03-15), pages 268 - 272, XP093158261
XIAOTIAN FU: "A Simplified Sphere Decoding-Based Detector for Generalized SCMA Codebooks", IEEE ACCESS, IEEE, USA, vol. 10, 4 January 2022 (2022-01-04), USA , pages 516 - 534, XP093158266, ISSN: 2169-3536, DOI: 10.1109/ACCESS.2021.3136303
TIAN GUODONG: "Multiuser detection algorithm for SCMA based on sphere decoding improvement", CHINA SCIENCEPAPER, vol. 13, no. 8, 23 April 2018 (2018-04-23), pages 943 - 949, XP093158246
ZHANG XUNING: "Partial code-words SCMA detection algorithm based on error compensation", CHINA SCIENCEPAPER, vol. 14, no. 3, 15 March 2019 (2019-03-15), pages 268 - 272, XP093158261
XIAOTIAN FU: "A Simplified Sphere Decoding-Based Detector for Generalized SCMA Codebooks", IEEE ACCESS, IEEE, USA, vol. 10, 4 January 2022 (2022-01-04), USA , pages 516 - 534, XP093158266, ISSN: 2169-3536, DOI: 10.1109/ACCESS.2021.3136303
Attorney, Agent or Firm:
SHOUCHUANG JUNHE PATENT AGENT CO., LTD.XIAMEN (CN)
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