Design of Space-Time Block Coded Unique Word OFDM Systems

被引：0

作者：

Cheema, Sher Ali ^{[1
]}

Zhang, Jianshu ^{[1
]}

Huemer, Mario ^{[2
]}

Haardt, Martin ^{[1
]}

机构：

[1] Ilmenau Univ Technol, Commun Res Lab, Ilmenau, Germany

[2] Johannes Kepler Univ Linz, Inst Signal Proc, Linz, Austria

来源：

2017 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP) | 2017年

关键词：

Orthogonal Frequency Division Multiplexing (OFDM); Cyclic Prefix (CP); Unique Word (UW); Space-Time Block Codes (STBCs); Multiple-Input Multiple-Output (MIMO); SELECTIVE FADING CHANNELS;

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this paper we develop space-time block codes for unique word -orthogonal frequency division multiplexing (UW-OFDM) systems to fully exploit the diversity gain when the channel state information is not available at the transmitter. To this end, we propose two novel space-time block codes (STBCs) for UW-OFDM systems, namely a frequency domain space-time block code and a time-reversal space-time code (TR-STC). The former one is an extension of the traditional spacefrequency block codes (SFBCs) for CP-OFDM systems to UW-OFDM systems while the latter one makes use of the frame structure of the UW-OFDM symbols and has a low complexity decoder. Simulation results show that both of the proposed space-time block codes achieve a significant gain compared to the SFBC based CP-OFDM. Moreover, the frequency domain STBC yields a slightly better performance as compared to the TR-STC but has a higher computational complexity.

引用

页码：3341 / 3345

页数：5

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