Robust iterative multiuser receiver for coded CDMA systems in non-Gaussian channels

IEICE Electronics Express

Teong Chee Chuah¹  Ivan Ku¹  Sze Wei Lee¹ 

[1] Faculty of Engineering, Multimedia University

关键词: turbo principle;    M-Estimation;    non-Gaussian;    DS-CDMA;   

DOI  :  10.1587/elex.4.380

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(7)A robust front-end pre-filter incorporating non-quadratic signal processing techniques is proposed. We will demonstrate the effectiveness of this filter in suppressing impulsive noises in a coded direct sequence code-division multiple access (DS-CDMA)communication system. Based on M-Estimation approach, the pre-filter works by minimizing an appropriate penalty function in an iterative fashion with minimal increase in computational complexity of the system. With the use of this pre-filter in the system, performance enhancement in excess of 6dB in non-Gaussian impulsive channels is demonstrated while maintaining comparable performance in Gaussian channel.

【 授权许可】

Unknown