B-LMMSE-PIC iterative detection method for OTSM in high-speed mobile environment
To improve the reliability of orthogonal time sequency multiplexing (OTSM) transmission in high-speed mobile environments, a block linear minimum mean square error with parallel interference cancellation (B-LMMSE-PIC) iterative detection method was proposed. The MMSE-PIC symbol estimation was perfor...
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| Format: | Article |
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Editorial Department of Journal on Communications
2025-01-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2025010/ |
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| author | LI Guojun ZHENG Xiang WANG Jie |
| author_facet | LI Guojun ZHENG Xiang WANG Jie |
| author_sort | LI Guojun |
| collection | DOAJ |
| description | To improve the reliability of orthogonal time sequency multiplexing (OTSM) transmission in high-speed mobile environments, a block linear minimum mean square error with parallel interference cancellation (B-LMMSE-PIC) iterative detection method was proposed. The MMSE-PIC symbol estimation was performed in the time domain by block, and the Neumann series approximation was used for matrix inversion, which reduced the computational complexity to linear order. Subsequently, the mean and variance of the estimated symbols in the delay-sequency domain were calculated to provide prior information for the next iteration. Simulation results demonstrated that, under conditions of 540 km/h mobile speed and 16QAM modulation with a BER of 10<sup>-4</sup>, the proposed method achieves a performance gain of 2.48 dB compared to the widely used iterative rake detection algorithm based on maximum ratio combining (MRC). |
| format | Article |
| id | doaj-art-2c61aac0ffb34e44943fcbb4ecb09878 |
| institution | OA Journals |
| issn | 1000-436X |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-2c61aac0ffb34e44943fcbb4ecb098782025-08-20T02:13:56ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2025-01-0146132282296419B-LMMSE-PIC iterative detection method for OTSM in high-speed mobile environmentLI GuojunZHENG XiangWANG JieTo improve the reliability of orthogonal time sequency multiplexing (OTSM) transmission in high-speed mobile environments, a block linear minimum mean square error with parallel interference cancellation (B-LMMSE-PIC) iterative detection method was proposed. The MMSE-PIC symbol estimation was performed in the time domain by block, and the Neumann series approximation was used for matrix inversion, which reduced the computational complexity to linear order. Subsequently, the mean and variance of the estimated symbols in the delay-sequency domain were calculated to provide prior information for the next iteration. Simulation results demonstrated that, under conditions of 540 km/h mobile speed and 16QAM modulation with a BER of 10<sup>-4</sup>, the proposed method achieves a performance gain of 2.48 dB compared to the widely used iterative rake detection algorithm based on maximum ratio combining (MRC).http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2025010/orthogonal time sequency multiplexinglinear minimum mean square errorparallel interference cancellationNeumann series |
| spellingShingle | LI Guojun ZHENG Xiang WANG Jie B-LMMSE-PIC iterative detection method for OTSM in high-speed mobile environment Tongxin xuebao orthogonal time sequency multiplexing linear minimum mean square error parallel interference cancellation Neumann series |
| title | B-LMMSE-PIC iterative detection method for OTSM in high-speed mobile environment |
| title_full | B-LMMSE-PIC iterative detection method for OTSM in high-speed mobile environment |
| title_fullStr | B-LMMSE-PIC iterative detection method for OTSM in high-speed mobile environment |
| title_full_unstemmed | B-LMMSE-PIC iterative detection method for OTSM in high-speed mobile environment |
| title_short | B-LMMSE-PIC iterative detection method for OTSM in high-speed mobile environment |
| title_sort | b lmmse pic iterative detection method for otsm in high speed mobile environment |
| topic | orthogonal time sequency multiplexing linear minimum mean square error parallel interference cancellation Neumann series |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2025010/ |
| work_keys_str_mv | AT liguojun blmmsepiciterativedetectionmethodforotsminhighspeedmobileenvironment AT zhengxiang blmmsepiciterativedetectionmethodforotsminhighspeedmobileenvironment AT wangjie blmmsepiciterativedetectionmethodforotsminhighspeedmobileenvironment |