Iterative Joint Optimization of Transmit/Receive Frequency-Domain Equalization in Single Carrier Wireless Communication Systems

被引：0

作者：

Yuan Xiaogeng ^{[1
]}

Muta, Osamu ^{[1
]}

Akaiwa, Yoshihiko ^{[1
]}

机构：

[1] Kyushu Univ, Grad Sch Informat Sci & Elect Engn, Nishi Ku, Fukuoka 8190395, Japan

来源：

68TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, FALL 2008 | 2008年

关键词：

Frequency-domain equalization; Transmit/receive equalization; Single carrier transmission;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

An iterative optimization method of transmit/receive frequency domain equalization (FDE) is proposed for single carrier transmission systems, where both transmit and receive FDE weights are iteratively determined with a recursive algorithm so as to minimize the error signal at a virtual receiver. The computer simulation results show that SC systems using the proposed transmit/receive equalization method achieves better BER performance than those using the conventional receive FDE. BER performance of SC systems using the proposed method was improved by about 2.7dB at BER= 10(-3) compared to case of those using conventional receive FDE in attenuated 6-path quasistatic Rayleigh fading with normalized delay spread value of tau/T = 0.769. In addition, when decision feedback equalizer (DFE) with sufficient number of feedback taps is adopted in both systems, the proposed system achieves better BER performance than the conventional system in a low E(b)/N region and BER performance of the proposed system becomes close to that of the conventional one as E(b)/N(0) increases in the above channel condition.

引用

页码：910 / 914

页数：5