Pilot Allocation Scheme for Pseudo-random Sequence Scrambling in Massive MIMO System
In this paper，a scheme of joint polar coordinate pilot assignment and pseudo-random code pilot design is proposed to solve the pilot contamination caused by the reuse of the same pilot sequence in each cell of the Massive MIMO system. First，all users in each cell were marked with polar coordinates，a...
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| Format: | Article |
| Language: | zho |
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Harbin University of Science and Technology Publications
2021-02-01
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| Series: | Journal of Harbin University of Science and Technology |
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| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1926 |
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| author | HAN Zhi-yu DONG Jing-wei YAN Ning WANG Xin LI Jia |
| author_facet | HAN Zhi-yu DONG Jing-wei YAN Ning WANG Xin LI Jia |
| author_sort | HAN Zhi-yu |
| collection | DOAJ |
| description | In this paper，a scheme of joint polar coordinate pilot assignment and pseudo-random code pilot design is proposed to solve the pilot contamination caused by the reuse of the same pilot sequence in each cell of the Massive MIMO system. First，all users in each cell were marked with polar coordinates，and pilot sequences were allocated according to the size of the user's polar angle. Then，pseudo-random codes with different time delays were used to disturb to users using the same pilot sequence in different cells，so as to improve the accuracy of channel estimation. Through theoretical derivation and data simulation analysis，the scheme can effectively reduce the minimum mean square error of channel estimation and improve the signal-to-noise ratio and average transmission rate of uplink transmission. Thus the adverse effect of pilot contamination on channel estimation is reduced and the channel throughput is improved. |
| format | Article |
| id | doaj-art-85810f18565542f8bc7c7be4b4676556 |
| institution | DOAJ |
| issn | 1007-2683 |
| language | zho |
| publishDate | 2021-02-01 |
| publisher | Harbin University of Science and Technology Publications |
| record_format | Article |
| series | Journal of Harbin University of Science and Technology |
| spelling | doaj-art-85810f18565542f8bc7c7be4b46765562025-08-20T02:55:03ZzhoHarbin University of Science and Technology PublicationsJournal of Harbin University of Science and Technology1007-26832021-02-01260111512110.15938/j.jhust.2021.01.016Pilot Allocation Scheme for Pseudo-random Sequence Scrambling in Massive MIMO SystemHAN Zhi-yu0DONG Jing-wei1YAN Ning2WANG Xin3LI Jia4School of Measure-Control Technology and Communication Engineering，Harbin University of Science and Technology，Harbin 150080，ChinaSchool of Measure-Control Technology and Communication Engineering，Harbin University of Science and Technology，Harbin 150080，ChinaSchool of Measure-Control Technology and Communication Engineering，Harbin University of Science and Technology，Harbin 150080，ChinaSchool of Measure-Control Technology and Communication Engineering，Harbin University of Science and Technology，Harbin 150080，ChinaSchool of Measure-Control Technology and Communication Engineering，Harbin University of Science and Technology，Harbin 150080，ChinaIn this paper，a scheme of joint polar coordinate pilot assignment and pseudo-random code pilot design is proposed to solve the pilot contamination caused by the reuse of the same pilot sequence in each cell of the Massive MIMO system. First，all users in each cell were marked with polar coordinates，and pilot sequences were allocated according to the size of the user's polar angle. Then，pseudo-random codes with different time delays were used to disturb to users using the same pilot sequence in different cells，so as to improve the accuracy of channel estimation. Through theoretical derivation and data simulation analysis，the scheme can effectively reduce the minimum mean square error of channel estimation and improve the signal-to-noise ratio and average transmission rate of uplink transmission. Thus the adverse effect of pilot contamination on channel estimation is reduced and the channel throughput is improved.https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1926massive mimopilot contaminationchannel estimationpilot sequencesmean square err |
| spellingShingle | HAN Zhi-yu DONG Jing-wei YAN Ning WANG Xin LI Jia Pilot Allocation Scheme for Pseudo-random Sequence Scrambling in Massive MIMO System Journal of Harbin University of Science and Technology massive mimo pilot contamination channel estimation pilot sequences mean square err |
| title | Pilot Allocation Scheme for Pseudo-random Sequence Scrambling in Massive MIMO System |
| title_full | Pilot Allocation Scheme for Pseudo-random Sequence Scrambling in Massive MIMO System |
| title_fullStr | Pilot Allocation Scheme for Pseudo-random Sequence Scrambling in Massive MIMO System |
| title_full_unstemmed | Pilot Allocation Scheme for Pseudo-random Sequence Scrambling in Massive MIMO System |
| title_short | Pilot Allocation Scheme for Pseudo-random Sequence Scrambling in Massive MIMO System |
| title_sort | pilot allocation scheme for pseudo random sequence scrambling in massive mimo system |
| topic | massive mimo pilot contamination channel estimation pilot sequences mean square err |
| url | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1926 |
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