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双迭代级联译码的Turbo V-BLAST结构

胡旸 尹长川 乐光新

胡旸, 尹长川, 乐光新. 双迭代级联译码的Turbo V-BLAST结构[J]. 电子与信息学报, 2006, 28(9): 1622-1625.
引用本文: 胡旸, 尹长川, 乐光新. 双迭代级联译码的Turbo V-BLAST结构[J]. 电子与信息学报, 2006, 28(9): 1622-1625.
Hu Yang, Yin Chang-chuan, Yue Guang-xin. Double-Iterated Concatenated Decoding for Turbo V-BLAST System[J]. Journal of Electronics and Information Technology, 2006, 28(9): 1622-1625.
Citation: Hu Yang, Yin Chang-chuan, Yue Guang-xin. Double-Iterated Concatenated Decoding for Turbo V-BLAST System[J]. Journal of Electronics and Information Technology, 2006, 28(9): 1622-1625.

双迭代级联译码的Turbo V-BLAST结构

Double-Iterated Concatenated Decoding for Turbo V-BLAST System

  • 摘要: 垂直贝尔实验室分层空时(V-BLAST)方案能有效提高系统的信道容量而成为研究的热点。但多发送天线造成了接收信号的空间干扰,这严重造成了误比特(误帧)系统性能的下降。在接收端,采用了迫零(Zero-forcing)排序的迭代混合干扰消除(Hybird Interference Cancellation,HIC)算法,相比迫零排序的串行干扰消除(Serial Interference Cancellation,SIC)算法,在降低复杂度的同时提高系统性能。干扰消除后的软信息经过Turbo迭代译码,得到的硬判决信息可以反馈回到V-BLAST的迭代ZF-HIC干扰检测,进行系统级联迭代。因此,文中的Turbo V-BLAST结构具有双迭代级联的多迭代环特征。仿真证明能很大程度上改进系统的BER和FER,是一种理想的系统结构。
  • Telatar E. Capacity of multi-antenna Gaussian channels[J].European Transactions on Telecommunications.1999, 10(6):585-595[2]Foschini G J. Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas. Bell Labs Technical Journal, 1996, Autumn: 41-59.[3]Wolniansky P W, Foschini G J. V-BLAST: An architecture for realizing very high data rates over the rich-scattering wireless channel. URSI International Symposium on Signals Systems and Electronics(ISSSE), PISA ITALY, 29 Sept.-2 Oct.,1998: 295-300.[4]Golden G D, Foschini G J. Dectecton algorithm and initial laboratory results using V-BLAST space-time communication architecture[J].Electron. Lett.1999, 35(1):14-16[5]Biglieri E, Taricco G, Tulino A. Decoding space-time codes with BLAST architectures[J].IEEE Trans. on Signal Processing.2002, 50(10):2547-2552[6]Li Yuan, Luo Zhi-quan. Parallel detection for V-BLAST system.IEEE Int. Conf. on Communications(ICC), 28 April.2 May, 2002, 1: 340-344.[7]Berrou C, Glavieux A, Thitimajshima P. Near Shannon limit error-correcting coding and decoding: Turbo- codes. IEEE Int. Conf. on Communications(ICC), Geneva Switzerland, May, 93: 1064-1070.[8]Malik R, Dubey V K, McGuffin B. A hybrid Interference canceller for CDMA systems in Rayleigh fading channels. Vehicular Technology Conference (VTC), 6-9 May, 2001, 2: 1523 - 1527.
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出版历程
  • 收稿日期:  2004-12-20
  • 修回日期:  2005-07-05
  • 刊出日期:  2006-09-19

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