Performance Analysis of Linear and Non-Linear Equalizer in Rician Channel

被引：4

作者：

Agarwal, Amit ^{[1
]}

Sur, S. N. ^{[1
]}

Singh, Arun Kumar ^{[1
]}

Gurung, Hemanth ^{[1
]}

Gupta, Abhishek Kumar ^{[1
]}

Bera, R. ^{[1
]}

机构：

[1] Sikkim Manipal Inst Technol, Rangpo 737136, Sikkim, India

来源：

2ND INTERNATIONAL CONFERENCE ON COMPUTER, COMMUNICATION, CONTROL AND INFORMATION TECHNOLOGY (C3IT-2012) | 2012年 / 4卷

关键词：

Equalization; Decision Feedback Equaliser; MMSE; Rician channel; FEEDBACK;

D O I：

10.1016/j.protcy.2012.05.111

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

In this paper, equalization algorithms applying soft-decision feedback, designed for quaternary phase-shift keying (QPSK) and 8PSK (phase-shift keying) transmission are introduced. The method employed is a minimum mean-squared error (MMSE) in which each iteration is done in order to refine the data estimates. The rule for generating soft decisions is adapted continuously to the current state of the algorithm. We show that standard Decision Feedback Equalization (DFE-Non linear Equaliser) methods are clearly outperformed the minimum mean-squared error (MMSE linear Equaliser). We use the MATLAB to show that the MMSE-DFE provide better performance with the increasing value of SNR in scattering environment. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of C3IT

引用

页码：687 / 691

页数：5

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