A Novel Spatial-Multiplexing OFDM System with Transmit Diversity Based on SFBC

被引：0

作者：

Chen, Zhe ^{[1
]}

Chang Yongyu ^{[1
]}

Yang, Dacheng ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Wireless Theories & Technol Lab, Beijing 100088, Peoples R China

来源：

2010 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS - ICC 2010 | 2010年

关键词：

orthogonal frequency-division multiplexing; space-frequency block code; multiple-input multiple-output; diversity gain; multiplexing gain; EQUALIZATION; PERFORMANCE;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel spatial-multiplexing orthogonal frequency-division multiplexing (OFDM) transmission system with transmit diversity provided by space-frequency block code (SFBC) is proposed in this paper. The proposed scheme combines Alamouti scheme and Bell Labs layered space-time (BLAST) together, thus can achieve transmit diversity and spatial multiplexing gains altogether. Two-step iterative detection algorithm is also proposed for this system, in which MMSE detection is performed firstly and then SFBC decoding coupled with successive interference cancellation (SIC) is performed separately and iteratively for each layer. Simulation results show that the proposed system with iterative detection algorithm can achieve better tradeoff between transmission rate and bit error rate (BER) performance than existing multiple-input multiple-output (MIMO) OFDM systems.

引用

页数：5

共 12 条

[1] Space-time turbo equalization in frequency-selective MIMO channels [J].