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应用科学学报 ›› 2006, Vol. 24 ›› Issue (5): 463-468.

• 论文 • 上一篇    下一篇

基于迹准则的空频格码的设计

耿嘉, 曹秀英, 毕光国   

  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:2005-07-28 修回日期:2005-11-23 出版日期:2006-09-30 发布日期:2006-09-30
  • 作者简介:耿嘉,博士生,研究方向:MIMO通信技术,E-mail:gengjia_cn@163.com;曹秀英,教授,博导,研究方向:信息安全、卫星通信,E-mail:cao_xy@seu.edu.cn;毕光国,教授,博导,研究方向:超宽带无线通信,E-mail:bigg@seu.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(60272047)

Design of Space-Frequency Trellis Codes Based on Trace Criterion

GENG Jia, CAO Xiu-ying, BI Guang-guo   

  1. National Mobile Communication Research Laboratory, Southeast University, Nanjing 210096, China
  • Received:2005-07-28 Revised:2005-11-23 Online:2006-09-30 Published:2006-09-30

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摘要： 通过对空时格码与空频格码内在联系的理论分析,提出原本用于设计空时格码的迹准则也可以用于空频格码的设计,且仿真表明用迹准则设计出的空频格码性能明显优于已知的其他空频格码.文中还通过对迹准则的改进,使其设计出的空频格码性能进一步提高.径时延、交织以及编码器状态数对码性能的影响也在文中进行了分析.

关键词: 空时格码, 迹准则, 空频格码, 正交频分复用

Abstract: By analyzing the relation between space-frequency trellis codes (SFTC) and space-time trellis codes (STTC), it is demonstrated that the trace criterion can be used in the design of SFTCs although this criterion is originally proposed for STTCs.Simulation results show that the codes designed by the trace criterion outperform other known SFTCs.In addition, the code performance can be further improved by enhancement of the trace criterion.Effects of path delay, interleaving and encoder states on the code performance are analyzed.

Key words: space-frequency trellis codes, OFDM, trace criterion, space-time trellis codes

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