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应用科学学报 ›› 2002, Vol. 20 ›› Issue (2): 129-134.

• 论文 • 上一篇    下一篇

优化空时格码的性能准则及串联级联卷积编码空时格码

程健, 陈明, 程时昕   

  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:2001-04-25 修回日期:2001-10-14 出版日期:2002-06-30 发布日期:2002-06-30
  • 作者简介:程健(1973-),男,安徽肥西人,博士生;程时昕(1936-),男,湖北鄂城人,教授,博导.

Optimized Performance Criterion for STTC and the Serially Concatenated Convolution ally Coded STTC

CHENG Jian, CHEN Ming, CHENG Shi-xin   

  1. National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
  • Received:2001-04-25 Revised:2001-10-14 Online:2002-06-30 Published:2002-06-30

PDF

87

被引次数

3

摘要： 讨论一种优化的空时格码的性能准则;再应用串联级联卷积编码加格雷映射实现一种新的空时格码.通过仿真可见,这种新空时格码比经典空时格码和编码增益优化了的空时格码在性能上都要好,具有性能好、容易构造等优点.

关键词: 空时码, 空时格码, 瑞利衰落, 串联级联卷积码的空时格码, 无线通信

Abstract: In this paper, an improved criterion for STTC construction is discussed. Next a new kind of STTC construction using serially concatenated convolutionally coded modulation with QPSK with Gray mapping is proposed. Simulation shows that Gray mapping is much better than direct mapping, and the serially concatenated convolutionally coded STTCs with Gray mapping outperform the classical STTC proposed by Tarokh or the improved ones proposed by Bäro. The serially concatenated convolutionally coded STTC has good performance and is easy to construct.

Key words: wireless communications, space-time code, space-time trellis code (STTC), serially concatenated convolutionally coded STTC, Rayleigh fading

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