| 一种低复杂度的Turbo均衡算法 |
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| 引用本文： | 魏启蒙,朱红,杨先桂. 一种低复杂度的Turbo均衡算法[J]. 实验科学与技术, 2008, 6(1): 7-9 |
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| 作者姓名： | 魏启蒙 朱红 杨先桂 |
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| 作者单位： | 电子科技大学电子工程学院,成都,610054 |
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| 摘 要： | Turbo均衡的提出是为了消除无线通信信道中的ISI干扰，它是把均衡和迭代译码相结合的技术。该文重点对一种低复杂度的基于MMSE的Turbo均衡进行探讨，同时研究此方法应用于两种不同Pmakis信道的性能，仿真结果表明随着比特信噪比的增大系统误码性能改善明显；多次迭代也能改善系统误码性能，但迭代到一定次数时系统误码性能改善不明显。
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| 关 键 词： | 码间干扰 Turbo均衡 无线通信 |
| 文章编号： | 1672-4550(2008)01-0007-03 |
| 修稿时间： | 2007-09-03 |
Turbo Equalization Algorithm with Low Complexity |
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| WEI Qi-meng,ZHU Hong,YANG Gui-xian. Turbo Equalization Algorithm with Low Complexity[J]. Experiment Science & Technology, 2008, 6(1): 7-9 |
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| Authors: | WEI Qi-meng ZHU Hong YANG Gui-xian |
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| Affiliation: | WEI Qi-meng, ZHU Hong, YANG Gui-xian ( School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China) |
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| Abstract: | Turbo equalization is used to reduce and eliminate intersymbol interference(ISI),which is a technique that combines Turbo principle with equalization.This article focuses on exploring a low-complexity Turbo equalization based on MMSE criteria.and furthers on the study of the performance of BER of the low-complexity Turbo equalization in two different Proakis channels.Simulation results demonstrate that the performance of BER of the low-complexity Turbo equalization is improved significantly with the increases of SNR.It also shows that the performance of BER is improved by several iterations,while the improvement of BER through iteration diminishes after certain times of iteration. |
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| Keywords: | ISI Turbo equalization wireless communications |
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