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一種適合于衰落信道的BCM碼的集分割映射方法

駱亞娟,  張偉,  鞠德航

駱亞娟, 張偉, 鞠德航. 一種適合于衰落信道的BCM碼的集分割映射方法[J]. 電子與信息學(xué)報(bào), 2001, 23(3): 241-247.
引用本文: 駱亞娟, 張偉, 鞠德航. 一種適合于衰落信道的BCM碼的集分割映射方法[J]. 電子與信息學(xué)報(bào), 2001, 23(3): 241-247.
Luo Yajuan, Zhang Wei, Ju Dehang. A Method of Set Partitioning for BCM Codes on Fading Channels[J]. Journal of Electronics & Information Technology, 2001, 23(3): 241-247.
Citation: Luo Yajuan, Zhang Wei, Ju Dehang. A Method of Set Partitioning for BCM Codes on Fading Channels[J]. Journal of Electronics & Information Technology, 2001, 23(3): 241-247.

一種適合于衰落信道的BCM碼的集分割映射方法

A Method of Set Partitioning for BCM Codes on Fading Channels

  • 摘要: 在瑞利衰落信道中,對于一個分組調(diào)制(Block Coded Modulation)碼的構(gòu)造通常是通過將具有盡可能大最小乘積距離和漢明距離的成分碼與Ungerboeck的集分割映射相結(jié)合來實(shí)現(xiàn)的,但這種集分割映射方法使得構(gòu)造的BCM碼的路徑復(fù)雜度大大增加,造成了系統(tǒng)性能的下降。文章給出了一種新的集分割映射方法。仿真結(jié)果表明,采用這種方法構(gòu)造出的BCM碼在瑞利衰落信道中的性能較前者有很大的改善。
    Abstract: Construction of a BCM code on the Rayleigh-fading channel can be realized by combining component codes, whose minimum product distance and Hamming distance are as large as possible, with set partitioning method proposed by Ungerboeck. However, using this mapping method, the complexity of a BCM code constructed is greatly increased, which makes a degradation of the whole performance. In the paper, a new set partitioning method is proposed. Simulation result shows that BCM codes constructed by this mapping method have a better performance than those constructed by using Ungerboeck set partitioning mapping.
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  • L. Zhang, Block modulation codes for fading channels, Ph.D dissertation, Sydney, University of Sydney, June, 1993. ［2］L. Zhang, B. Vucetic, Block coded modulation on AWGN and fading channel, Abstract of Papers, IEEE International Symposium on Information Theory, Seattle, 1990, 987-992.[2]L. Zhang, B. Vucetic, Bandwidth efficient block codes for Rayleigh fading channels, Electronics Letters, 1990, 26(5), 1002-1007.[3]G.D. Forney Jr, Coset codes II, Binary lattices and related codes, IEEE Trans. on Inform. Theory, 1988, IT-34(9), 1152-1187.[4]G. Ungerboeck, Channel coding with multilevel/phase signals, IEEE Trans. on Inform. Theory, 1982, IT-28(1), 55-56.[5]T. Kasami, T. Takata, T. Fujiwara, S. Lin, A concatenated coded modulation scheme for error control, IEEE Trans. on Commun., 1990, COM-38(6), 752-763.[6]S. Rajapl, D. J. Rhee, S. Lin, Multi-dimensional trellis-coded phase modulation using a multilevel concatenation approach, in Proc. IEEE Int. Symp. Inform. Theory, Budapest, Hungary, 1991,102-106.[7]A.R. Calderbank, N. Seshadri, Multilevel codes for unequal error protection, IEEE Trans. on Inform. Theory, 1993, IT-39(7), 441-447.[8]J. Huber, U. Wachsmann, Power and bandwidth efficient digital communication using turbo codes in multilevel codes, European Trans. on Telecommun., 1995, 6(5), 557-567.
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出版歷程
  • 收稿日期:  1999-02-11
  • 修回日期:  1999-12-16
  • 刊出日期:  2001-03-19

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