频率选择性衰落信道中的时间反转正交空时分组码设计

董宇; 赵慧; 王文博

您当前的位置：

首页 >

文章列表页 >

频率选择性衰落信道中的时间反转正交空时分组码设计

更新时间：2025-07-09

- 频率选择性衰落信道中的时间反转正交空时分组码设计
- Time-Reversal Orthogonal Space-Time Block Coding Design for Frequency-Selective Fading Channels
- 西安交通大学学报 2009年43卷第8期页码：53-58
- 作者机构：
  
  北京邮电大学泛网无线通信教育部重点实验室,北京,100876
- 作者简介：
- 基金信息：
  
  : 2008-12-02. 作者简介: 董宇(1980-),男,博士生;王文博(联系人),男,教授,博士生导师. 基金项目: 国家自然科学基金资助项目(60802082)
- DOI：
  中图分类号： TN911.22
- 网络首发：2009-08-10，
  
  纸质出版：2009
- 稿件说明：
移动端阅览
董宇, 赵慧, 王文博. 频率选择性衰落信道中的时间反转正交空时分组码设计[J]. 西安交通大学学报, 2009,43(8):53-58.

Time-Reversal Orthogonal Space-Time Block Coding Design for Frequency-Selective Fading Channels[J]. 2009, 43(8): 53-58.
董宇, 赵慧, 王文博. 频率选择性衰落信道中的时间反转正交空时分组码设计[J]. 西安交通大学学报, 2009,43(8):53-58. DOI：

Time-Reversal Orthogonal Space-Time Block Coding Design for Frequency-Selective Fading Channels[J]. 2009, 43(8): 53-58. DOI：

摘要

针对空时分组码在频率选择性衰落信道中误码率性能损失严重的问题

提出了一种时间反转坐标交织正交码设计方案(TR-CIOD).先将空时码的部分传输数据进行时间反转

按照特定数据格式改变符号时序进行传输

然后利用正交空时分组码等效信道矩阵的正交性和循环矩阵的乘法特性

在接收端进行空时匹配滤波.TR-CIOD方案能够降低符号间干扰对数据传输的影响

在保证获得空时码多天线分集增益的同时

还能有效合并信道多径

获得多径分集增益.仿真结果表明

在2径信道、误码率为10

-5

时

TR-CIOD方案比平坦信道中的坐标交织正交码设计方案的信噪比增益提高了5.5 dB.

Abstract

Focusing on the problem that the bit error rate performance of the space-time block codes decreases in frequency-selective fading channels

a time-reversal coordinate interleaved orthogonal coding design(TR-CIOD)is proposed. Data symbols are transmitted in designed format and some of the symbols are time-reversed. It is the orthogonality of the equivalent channel matrix and the multiplication property of the circulant matrix that the influence on performance caused by intersymbol interference is greatly reduced after matching filters at receivers. TR-CIOD can achieve multi-antenna diversity gain as well as multi-path diversity gain. Simulation results with 10

-5

bit error rate and 2-ray channels and comparisons with the coordinate interleaved orthogonal design in frequency flat channel show that TR-CIOD performs obviously better

and achieves about 5.5 dB SNR gain.

关键词

Keywords

references

ALAMOUTI S M. A simple transmit diversity technique for wireless communications[J]. IEEE Journal of Selective Communications, 1998, 16(8):1451-1458.

JAFARKHANI H. A quasi-orthogonal space-time block code[J]. IEEE Transactions on Communications, 2001, 49(1): 1-4.

WANG Dong, XIA Xianggen. Optimal diversity product rotations for quasi-orthogonal STBC with MPSK symbols [J]. IEEE Communications Letters, 2005, 9(5): 420-422.

AKAY E, AYANOGLU E. Achieving full frequency and space diversity in wireless systems via BICM, OFDM, STBC, and Viterbi decoding [J]. IEEE Transactions on Communications, 2006, 54(12): 2164-2172.

DING Zhiguo, WARD D B, WOON H C. A general scheme for equalization of space-time block-coded systems with unknown CSI [J]. IEEE Transactions on Signal Processing, 2006, 54(7): 2737-2746.

张贤达. 矩阵分析与应用[M]. 北京:清华大学出版社, 2004: 133-136.

KHAN M Z A, RAJAN B S, LEE H H. Rectangular co-ordinate interleaved orthogonal designs[C]∥Proceedings of IEEE Globe Telecommunications Conference, GLOBECOM 2003. Piscataway,NJ, USA: IEEE Press, 2003: 2004-2009.

KHAN M Z A, RAJAN B S. Single-symbol maximum likelihood decodable linear STBCs [J]. IEEE Transactions on Information Theory, 2006, 52(5): 2062-2091.

TAROKH V, SESHADRI N, CALDERBANK A R. Space-time codes for high data rate wireless communication: performance criterion and code construction[J]. IEEE Transactions on Information Theory, 1998, 44(2):744-765.

LINDSKOG E, FLORE D. Time-reversal space-time block coding and transmit delay diversity-separate and combined [C]∥Proceedings of Asilomar Conference on Signals, Systems and Computers 2000. Piscataway, NJ, USA: IEEE Press, 2000: 572-577.

SONG Lingyang, DE LAMARE R C, BURR A G. Successive interference cancellation schemes for time-reversal space-time block codes [J]. IEEE Transactions on Vehicular Technology, 2008, 57(1): 642-648.

HE Lei, GE Hongya. Quasi-orthogonal space-time block coded transceiver systems over frequency selective wireless fading channels [C]∥Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2004. Piscataway,NJ, USA: IEEE Press, 2004: 321-324.

MHEIDAT H, UYSAL M, AL-DHAHIR N. Quasiorthogonal time-reversal space-time block coding for frequency-selective channels [J].IEEE Transactions on Signal Processing, 2007,55(2):772-778.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

面向高海拔空冷发电机防晕性能演化规律的电热耦合研究

水蒸气掺混对氨裂解气旋流燃烧与排放特性的影响研究

融合物理信息与深度算子网络的变压器绕组热-流场快速计算方法

不同板叠材料热声热机能量转换过程数值模拟研究

冷库水平空气幕热湿阻隔性能数值模拟研究