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| 基于判决域半径的码字错误率估计 | |
| 引用本文： | 戴利云,杨鸿文,陈晓刚.基于判决域半径的码字错误率估计[J].北京邮电大学学报,2011,34(5):63-66. |
| 作者姓名： | 戴利云 杨鸿文 陈晓刚 |
| 作者单位： | 1. 北京邮电大学信息与通信工程学院,北京100876;江西财经大学软件与通信工程学院,南昌330013 2. 江西财经大学软件与通信工程学院,南昌,330013 3. 英特尔(中国)有限公司,北京,100876 |
| 基金项目： | 国家自然科学基金项目(61072059);国家高技术研究发展计划项目(2010AA012500);江西省教育厅科技项目(GJJ10124) |
| 摘 要： | 针对目前典型通信中对错误概率的估计主要是依靠蒙特卡罗仿真的局限性，给出一种利用判决域的半径来估计错误率的方法，将伯努利实验样本用判决域半径样本替换. 由于半径样本所含的信息量更加丰富，可以减少所需的样本数. 同时，由于判决域的几何结构基本上与信噪比(SNR)无关，所以估计错误率时不必随SNR重新测量半径，基于同一组半径样本即可估计出任意SNR下的错误率. |
| 关 键 词： | 码字错误率 判决域 判决域半径 蒙特卡罗仿真 |
| 收稿时间： | 2010-12-10 |
An Estimation of WER Based on the Radius of Decision Region |
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| DAI Li-yun,YANG Hong-wen,CHEN Xiao-gang.An Estimation of WER Based on the Radius of Decision Region[J].Journal of Beijing University of Posts and Telecommunications,2011,34(5):63-66. | |
| Authors: | DAI Li-yun YANG Hong-wen CHEN Xiao-gang |
| Affiliation: | 1.School of Telecommunication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China; 2.School of Software and Communication Engineering,Jiangxi University of Finance and Economics,Nanchang 330013,China; 3.Intel(China) Company of Limited,Beijing 100876,China) |
| Abstract: | In current communications, error probability estimation mainly relies on Monte Carlo simulation. A method based on the radius of decision region to estimate the word error rate (WER) is presented. The Bernoulli experiment samples is replaced with the samples of radius, that can reduce the required number of samples due to the more information provided by radii. Meanwhile, the geometry of decision region is of little to do with the signal to noise ratio (SNR), so the same group of radii can be used to estimate the different error probability at any SNR without repeated measure in different groups of radii under every SNR. |
| Keywords: | word error rate decision region radius of decision region Monte Carlo simulation |
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