| 基于干扰消除的MIMO-OTFS系统信号检测研究 |
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| 引用本文： | 苗豪伟,唐智灵.基于干扰消除的MIMO-OTFS系统信号检测研究[J].计算机应用研究,2021,38(7):2141-2143. |
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| 作者姓名： | 苗豪伟 唐智灵 |
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| 作者单位： | 桂林电子科技大学 广西无线宽带通信和信号处理重点实验室,广西 桂林541004 |
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| 基金项目： | 国家自然科学基金资助项目(61461013);广西区自然科学基金资助项目(2018GXNSFAA281179);广西区研究生创新计划资助项目(2020YCXS041) |
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| 摘 要： | 高迁移率条件下正交时频空间(OTFS)调制技术的性能优于正交频分复用(OFDM),而在常规的多输入多输出系统(MIMO)信号检测中,基于干扰消除信号检测技术的复杂度较大.针对此缺点,提出了一种改进的基于信干噪比(SINR)排序的信号检测算法.该算法先算出每一层信号的信干噪比,然后利用信息传递(MP)检测技术检测出每一层信号并通过干扰消除检测出全部信号.最后通过仿真对算法进行了验证,结果表明改进后的算法具有更好的性能.
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| 关 键 词： | 正交时频空间调制 信号检测 信干噪比排序 干扰消除 |
| 收稿时间： | 2020/10/20 0:00:00 |
| 修稿时间： | 2020/12/12 0:00:00 |
Study on signal detection of MIMO-OTFS system based on interference elimination |
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| Miao Haowei and Tang Zhiling.Study on signal detection of MIMO-OTFS system based on interference elimination[J].Application Research of Computers,2021,38(7):2141-2143. |
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| Authors: | Miao Haowei and Tang Zhiling |
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| Affiliation: | Guangxi Key Laboratory of Wireless Broadband Communication Signal Processing,Guilin University of Electronic Technology,Guilin Guangxi 541004, |
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| Abstract: | The performance of OTFS modulation is better than that of orthogonal frequency division multiplexing(OFDM) under the condition of high mobility, while in conventional multi-input and multi-output(MIMO) system signal detection, the detection technology based on interference elimination signal is very complex. To solve this problem, this paper proposed an improved signal detection algorithm based on SINR(signal to interference plus noise ratio) sorting. This algorithm first calculated the SINR of each layer, then used MP(message passing) detection technology to detect each layer and eliminate all signals through interference elimination. Finally, the simulation results show that the improved algorithm has better performance. |
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| Keywords: | otfs modulation signal detection SINR sorting interference elimination |
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