| Turbo均衡在Non-CP SC-FDE系统中的应用 |
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| 引用本文： | 吴世奇.Turbo均衡在Non-CP SC-FDE系统中的应用[J].现代电子技术,2013(23):23-25,29. |
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| 作者姓名： | 吴世奇 |
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| 作者单位： | 中国西南电子技术研究所,四川成都610036 |
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| 摘 要： | 针对无循环前缀的单载波频域均衡(Non-CP SC-FDE)系统中的符号间干扰(ISI),提出了一种Turbo均衡与循环重构联合迭代算法。通过循环重构技术消除ISI,并采用频域均衡频域判决反馈(FDE-FDDF)方式,将Turbo均衡算法与循环重构算法结合在一起进行迭代。仿真结果表明,Non-CP SC-FDE系统使用该算法能实现与传统有CP系统近似的误码性能,在大幅提高传输效率的同时能够有效消除多径干扰。
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| 关 键 词： | 联合迭代算法 Turbo均衡 单载波频域均衡 符号间干扰 循环重构 |
Application of Turbo equalization in Non-CP SC-FDE system |
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| WU Shi-qi.Application of Turbo equalization in Non-CP SC-FDE system[J].Modern Electronic Technique,2013(23):23-25,29. |
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| Authors: | WU Shi-qi |
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| Affiliation: | WU Shi-qi (Institute of Electronic Technology in Southwest China, Chengdu 610036, China) |
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| Abstract: | A joint iterative algorithm of Turbo equalization and cyclic reconstruction is proposed to avoid Inter-Symbol Inter- ference （ISI） in single carrier frequency-domain equalization （SC-FDE） system without cyclic prefix （CP）. The algorithm can- cels ISI by using cyclic reconstruction technology, and puts the Turbo equalization iterative algorithm and cyclic reconstruction iterative algorithm together by frequency-domain equalization frequency-domain decision feedback （FDE-FDDF） scheme. The simulation results show that Non-CP SC-FDE system has approximative bit error rate performance with traditional CP system, and it can raise transmission efficiency evidently and eliminate multipath interference in the meantime. |
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| Keywords: | joint iterative algorithm Turbo equalization SC-FDE ISI cyclic reconstruction |
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