Lagrange optimized LMK criteria feed-forward neural network blind multi-user detection

doi:10.3778/j.issn.1002-8331.2010.18.046

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (18): 146-148.DOI: 10.3778/j.issn.1002-8331.2010.18.046

• 数据库、信号与信息处理 • Previous Articles Next Articles

Lagrange optimized LMK criteria feed-forward neural network blind multi-user detection

LI Yan-qin¹，ZHANG Li-yi^2，3，GUO Chun-sheng¹，CHU Lin-lin¹

1.College of Disaster Prevention Equipment，Institute of Disaster Prevention Science and Technology，Beijing 101601，China
2.Department of Information Engineering，Tianjin University of Commerce，Tianjin 300134，China
3.Department of Electric Information Engineering，Tianjin University，Tianjin 300072，China

Received:2008-12-08 Revised:2009-02-20 Online:2010-06-21 Published:2010-06-21
Contact: LI Yan-qin

Lagrange优化的LMK神经网络盲多用户检测

李艳琴¹，张立毅^2，3，郭纯生1，储琳琳¹

1.防灾科技学院防灾仪器系，北京 101601
2.天津商业大学信息工程学院，天津 300134
3.天津大学电子信息工程学院，天津 300072

通讯作者: 李艳琴

Abstract

Abstract: A novel blind multi-user detection algorithm based on Feed-Forward Neural Network（FNN） is proposed.A cost function based on Least Mean Kurtosis criterion and the restraint condition of cost function is founded.Weights and parameters of feed-forward neural network are optimized by Lagrange multiple.Iterative formulas of feed-forward neural network are obtained，and then blind multi-user detection algorithm is realized.Simulation results indicate the novel algorithm possesses lower bit-error ratio，better convergence ability and so on.

Key words: blind multi-user detector, forward neural network, Least Mean Kurtosis（LMK） criteria, Lagrange multiple

摘要： 提出一种基于LMK准则的前馈神经网络盲多用户检测算法，给出算法的代价函数和约束条件，利用Lagrange方法对带约束的代价函数进行优化，获得前馈神经网络网络权值的迭代公式，从而实现神经网络盲多用户检测。仿真结果表明，新算法具有良好的误码率性能和收敛速度。

关键词: 盲多用户检测, 前馈神经网络, 最小平均峰度（LMK）准则, Lagrange乘子

CLC Number:

TN911.4

LI Yan-qin¹，ZHANG Li-yi^2，3，GUO Chun-sheng¹，CHU Lin-lin¹. Lagrange optimized LMK criteria feed-forward neural network blind multi-user detection[J]. Computer Engineering and Applications, 2010, 46(18): 146-148.

李艳琴¹，张立毅^2，3，郭纯生1，储琳琳¹. Lagrange优化的LMK神经网络盲多用户检测[J]. 计算机工程与应用, 2010, 46(18): 146-148.

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Lagrange optimized LMK criteria feed-forward neural network blind multi-user detection

Lagrange优化的LMK神经网络盲多用户检测

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