Improved RLS Based Adaptive Decision Directed MC-CDMA Receiver for Rayleigh Fading Channels

被引：0

作者：

Al-Quzwini, Mahmoud M. ^{[1
]}

Abdullah, S. N. ^{[2
]}

机构：

[1] Nahrain Univ, Dept Elect & Commun, Baghdad, Iraq

[2] Univ Baghdad, Dept Elect & Commun, Baghdad, Iraq

来源：

ICSPC: 2007 IEEE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATIONS, VOLS 1-3, PROCEEDINGS | 2007年

关键词：

Adaptive detection; channel estimation; multicarrier code-division multiple-access (MC-CDMA) detection; multicarrier-CDMA; orthogonal frequency division multiplexing (OFDM)-CDMA;

D O I：

暂无

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

In this paper an Improved RLS (ImRLS) Based Adaptive MMSE Decision Directed MC-CDMA Receiver for Rayleigh Fading Channels is developed. The technique adopted by the ImRLS, is to reduce the noise components in the RLS-estimated channel frequency response before applying it to the MMSE adaptive detector. This is done by an IFFT, limiting window and an FFT. Simulation results in rayleigh fading multiuser environments shows the ImRLS to outperforms the RLS in terms of BER and channel estimation average mean square error (avmse) with only an additional IFFT/FFT complexity increase. Furthermore, the ImRLS shows less sensitivity to MAI than the RLS.

引用

页码：1095 / +

页数：3