Performance Comparison of Adaptive Algorithms RLS and LMS on Space-Time Coded MC-CDMA Systems

被引：2
作者：
Garg, Ashish [1 ]
Rajoria, Rajkumar [1 ]
机构：
[1] Inst Informat Technol & Management, Dept Elect & Commun, Gwalior, India
来源：
2014 FOURTH INTERNATIONAL CONFERENCE ON COMMUNICATION SYSTEMS AND NETWORK TECHNOLOGIES (CSNT) | 2014年
关键词：
D O I：
10.1109/CSNT.2014.52
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper analyzes the performance of well known Least-mean-square (LMS) and Recursive-least-squares (RLS) adaptive algorithms in terms of bit error rate (BER) verses signal to noise ratio (SNR) performances on the space-time coded multicarrier CDMA (STC-MC-CDMA) systems in frequency selective environments. For system we consider Alamouti's space-time coding scheme that involves two transmit antennas and provide transmit diversity at transmitting end. We compare the performance of RLS and LMS detector with help of computer simulation. It is found that BER performance of RLS detector is always considerably better than that of LMS detector. Thus, RLS detector outperforms the LMS detector. In this paper, we propose an application of the RLS algorithm for the detection of space-time coded MC-CDMA system. Simulation results presented in this paper confirms the performance analysis.
引用
收藏
页码：228 / 232
页数：5
相关论文
共 9 条
[1]   A simple transmit diversity technique for wireless communications [J].
Alamouti, SM .
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1998, 16 (08) :1451-1458
[2]  
Benesty Jacob, 2005, RECURSIVE ESTIMATION
[3]  
Khunabut, 2004, P 2004 IEEE INT C NE, P1160, DOI [10.1109/ICNSC.2004.1297111, DOI 10.1109/ICNSC.2004.1297111]
[4]  
Liang Yong-ming, 2007, J ZHEJIANG U SCI A, P507
[5]  
Lin Pei, 2005, IEEE T INFORM THEORY
[6]  
Sun W., 2002, P 2002 IEEE WIR COMM, P3452
[7]  
Trivedi, 2007, IEEE T INFORM THEORY
[8]  
Wang ZD, 2000, IEEE SIGNAL PROC MAG, V17, P29
[9]   Hierarchical RLS algorithm for adaptive transversal FIR filters [J].
Woo, TK .
ELECTRONICS LETTERS, 2000, 36 (24) :2049-2050
1