带有并行分支的级连网格空时码研究

带有并行分支的级连网格空时码研究

李颖;王新梅

(西安电子科技大学综合业务网理论及关键技术国家重点实验室, 陕西西安 710071)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2004-12-20 发布日期:2004-12-20

Research on serially concatenated space-time trellis codes with parallel transitions

LI Ying;WANG Xin-mei

(State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an 710071, China)

Received:1900-01-01 Revised:1900-01-01 Online:2004-12-20 Published:2004-12-20

摘要/Abstract

摘要： 系统研究了带有并行分支的级连网格空时码，提出通过减少网格空时码状态数，来降低串行级连空时编码系统编译码复杂度的方案．给出级连空时码的设计方法，包括带有并行分支的网格空时码的设计以及对应外码的和交织器的选择．利用联合界的概念，分析其在准静态衰落信道下的性能．仿真显示，带有并行分支的级连网格空时码，不仅可有效地降低系统编译码复杂度，同时还具有较好的抗衰落性能．

关键词: 网格空时码, 非满秩空时码, 带有并行分支网格空时码, 串行级连系统

Abstract: The space-time trellis codes parallel transitions(PT-STTC) are proposed to decrease the complexity of the serially concatenated space-time code(SCSTC). The design of SCSTC, including the design of the PT-STTC, the corresponding outer encoder and the interleaver, is also described. Based on the concept of union bound, the performance of the SCSTC with the properly designed PT-STTC as the inner code is analyzed, too. Compared with the SCSTC with delay diversity as the inner code, the proposed PT-SCSTC can not only effectively decrease the complexity but have approximate 1dB coding gains.

Key words: space-time trellis code, non-full rank STTC, STTC with parallel transitions, serial concatenated space-time code

中图分类号:

TN911.22

李颖;王新梅. 带有并行分支的级连网格空时码研究[J]. J4, 2004, 31(6): 910-914.

LI Ying;WANG Xin-mei.

Research on serially concatenated space-time trellis codes with parallel transitions

[J]. J4, 2004, 31(6): 910-914.

[1]	李颖;王新梅. 串行级连空时编码系统的匹配问题研究[J]. J4, 2003, 30(1): 33-378.
[2]	李颖;吴克颖;王新梅. 级连网格空时码性能分析[J]. J4, 2002, 29(4): 522-527.