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应用科学学报 ›› 2004, Vol. 22 ›› Issue (1): 10-15.

• 论文 • 上一篇    下一篇

Turbo码和空时块码接连调制系统的研究

阿哈麦德, 潘志文, 高西奇, 尤肖虎   

  1. 东南大学移动通信国家重点实验室 江苏南京 210096
  • 收稿日期:2002-11-05 修回日期:2003-04-07 出版日期:2004-03-31 发布日期:2004-03-31
  • 作者简介:阿哈麦德(1963-),male,Iraqi,engineer,Ph.D.
  • 基金资助:
    Project supported by the National 863 progra

Serial Concatenation of Space-Time Block Codes with Turbo Coded Modulation Systems

AHMED J. Jameel, PAN Zhi-wen, GAO Xi-qi, YOU Xiao-hu   

  1. National Mobile Communications Research Laboratory, Department of Radio Engineering, Southeast University, Nanjing 210096, China
  • Received:2002-11-05 Revised:2003-04-07 Online:2004-03-31 Published:2004-03-31
  • Supported by:
    Project supported by the National 863 progra

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79

被引次数

1

摘要： 采用空时分组编码与Turbo码级联技术,提高了经过衰落信道的无线通信系统可靠性.利用双天线发送分集和单天线接收系统,其中将1/2 Turbo码作为外码、简单的空时分组码作为内码.叠代解码方案基于MAP算法.解码的复杂程度取决于外码格栅复杂程度.仿真结果表明,利用空时分组编码的发送分集,可在几乎不增加额外处理量的情况下显著提高系统的接收性能

关键词: 空时编码, 格栅码解调, Turbo码解调

Abstract: In this paper, the concatenation of Turbo codes with space time block codes (STBCs) to improve the reliability of wireless communication over fading channels is considered. We combined rate 1/2 Turbo code as outer code and a simple two-antenna space-time block code as inner code for transmitting diversity and one receiver antenna. The iterative decoding scheme is based on MAP algorithm. The decoding complexity is mainly determined by the trellis complexity of the outer code. Simulation results show that exploiting transmit-diversity by using space-time block codes provides remarkable performance at the expense of almost no extra processing.

Key words: trellis coded modulation, Turbo coded modulation, space-time codes

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