MUSA系统中一种快速多用户检测算法
多用户共享接入是一种5G非正交多址接入方案,由于采用了串行干扰消除（SIC）检测算法,算法运行时间较长,时延和复杂度较大。针对5G低时延、高可靠性的需求,提出了一种基于并行干扰消除（PIC）结构的快速非线性检测算法,该算法不需要多级PIC结构。首先让接收信号经过最小均方误差（MMSE）检测器,并把MMSE检测器的输出作为PIC检测器的输入。该算法避免了串行干扰消除算法中多次排序和对矩阵多次求逆的问题,在不降低符号错误率的情况下,算法的运行时间减小了54%,复杂度降低了一个级别。...
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| Published in | 电子技术应用 Vol. 42; no. 8; pp. 130 - 132 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
重庆邮电大学移动通信技术重点实验室,重庆,400065
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0258-7998 |
| DOI | 10.16157/j.issn.0258-7998.2016.08.032 |
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| Abstract | 多用户共享接入是一种5G非正交多址接入方案,由于采用了串行干扰消除（SIC）检测算法,算法运行时间较长,时延和复杂度较大。针对5G低时延、高可靠性的需求,提出了一种基于并行干扰消除（PIC）结构的快速非线性检测算法,该算法不需要多级PIC结构。首先让接收信号经过最小均方误差（MMSE）检测器,并把MMSE检测器的输出作为PIC检测器的输入。该算法避免了串行干扰消除算法中多次排序和对矩阵多次求逆的问题,在不降低符号错误率的情况下,算法的运行时间减小了54%,复杂度降低了一个级别。 |
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| AbstractList | 多用户共享接入是一种5G非正交多址接入方案,由于采用了串行干扰消除（SIC）检测算法,算法运行时间较长,时延和复杂度较大。针对5G低时延、高可靠性的需求,提出了一种基于并行干扰消除（PIC）结构的快速非线性检测算法,该算法不需要多级PIC结构。首先让接收信号经过最小均方误差（MMSE）检测器,并把MMSE检测器的输出作为PIC检测器的输入。该算法避免了串行干扰消除算法中多次排序和对矩阵多次求逆的问题,在不降低符号错误率的情况下,算法的运行时间减小了54%,复杂度降低了一个级别。 TN92; 多用户共享接入是一种5G非正交多址接入方案,由于采用了串行干扰消除(SiC)检测算法,算法运行时间较长,时延和复杂度较大.针对5G低时延、高可靠性的需求,提出了一种基于并行干扰消除(PIC)结构的快速非线性检测算法,该算法不需要多级PIC结构.首先让接收信号经过最小均方误差(MMSE)检测器,并把MMSE检测器的输出作为PIC检测器的输入.该算法避免了串行干扰消除算法中多次排序和对矩阵多次求逆的问题,在不降低符号错误率的情况下,算法的运行时间减小了54％,复杂度降低了一个级别. |
| Author | 武汉 邵凯 庄陵 王光宇 |
| AuthorAffiliation | 重庆邮电大学移动通信技术重点实验室,重庆400065 |
| AuthorAffiliation_xml | – name: 重庆邮电大学移动通信技术重点实验室,重庆,400065 |
| Author_FL | Wang Guangyu Wu Han Shao Kai Zhuang Ling |
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| Author_xml | – sequence: 1 fullname: 武汉 邵凯 庄陵 王光宇 |
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| DocumentTitleAlternate | A fast multi-user detection algorithm for MUSA system |
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| Keywords | MUSA 串行干扰消除 非正交多址接入 symbol error rate non-orthogonal multiple access parallel interference cancellation 多用户共享接入 符号错误率 并行干扰消除 successive interference cancellation |
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| Notes | Wu Han, Shao Kai, Zhuang Ling, Wang Guangyu （Chongqing Key Laboratory of Mobile Communications Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China） Multi- User Shared Access is a non- orthogonal multiple access scheme of 5G, which has a long running time, a large time delay and a high computational complexity due to the usage of successive interference cancellation detection algorithm. As for the demands of low latency and high reliability of 5G, a fast nonlinear detection algorithm is proposed which is based on PIC structure, and it does not require multi- stage structure of PIC. In the algorithm, the received signal goes through the MMSE detec-tor, and its outputs are regarded as the inputs of PIC detector. The proposed algorithm avoids the repeated ordering and the repeat-ed inverse matrix calculation of the SIC algorithm, which reduces the running time by 54 % and the computational complexity to a lower level without SER performance degradation. MUSA; non-orthogonal mul |
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| PublicationTitle | 电子技术应用 |
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| Publisher | 重庆邮电大学移动通信技术重点实验室,重庆,400065 |
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| SubjectTerms | 串行干扰消除 多用户共享接入 并行干扰消除 符号错误率 非正交多址接入 |
| Title | MUSA系统中一种快速多用户检测算法 |
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