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基于逐比特MAP算法的Turbo编码调制方式 被引量：6

A Turbo Trellis Coded Modulation Scheme Using Bit-by-Bit MAP Algorithm
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摘要 给出了一种基于逐比特 MAP算法的 Turbo编码与多元调制相结合的编码调制方式 .该编码调制方式通过删截 Turbo码的校验位以获得高编码效率 ,将复用后的编码输出以 Gray映射方式与多元调制结合从而获得高频带利用率 ,并采用逐比特 MAP算法进行迭代译码 .仿真结果表明 ,将 Turbo码的高编码增益与多元调制的高频谱利用率有效地结合在一起 ,是一种功率和频谱高效的编码调制方式 ,它比传统的网格编码调制 ( TCM) The paper presented a new Turbo coded modulation scheme using a bit by bit MAP algorithm. This scheme punctures parity check bits produced by component RSCs to get higher coding rate, and adopts M ary modulation by Gray mapping to achieve higher spectral efficiency, iterative decoding by a bit by bit MAP algorithm. The simulation results show that this coded modulation scheme, which combines the large coding gain of Turbo codes with the high bandwidth efficiency of M ary modulation, is power and bandwidth efficient.
作者 左健存 宋文涛 徐友云 罗汉文
机构地区 上海交通大学电子工程系
出处 《上海交通大学学报》 EI CAS CSCD 北大核心 2003年第6期812-815,共4页 Journal of Shanghai Jiaotong University
基金 国家自然科学基金 (60 0 72 0 2 8) 国家高技术研究发展计划 (863 )(2 0 0 1AA12 10 3 1)项目
关键词 Turbo码 多元调制 逐比特最大后验概率算法 编码调制 迭代译码 Turbo codes M ary modulation bit by bit maximum a posteriori(MAP) algorithm coded modulation iterative decoding
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献6

  • 1Berrou C. Glavieux A. Thitimajshima P. Near shannon limit errorcorrecting coding and decoding: turbocodes[A]. Proc of IEEE ICC'93[C]. Geneva: EEE Press. 1993.1064 - 1070.
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同被引文献24

  • 1Vishwanath S, Goldsmith A. Exploring adaptive turbo coded modulation for flat fading channels, Proc. IEEE VTC' 2000, 4:1778-1783.
  • 2Goldsmith A J, Yaraiya P. Capacity of fading channels with channel side information, IEEE Trans. Inform. Theory, 1997(43):1986-1992.
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  • 4Powell M J D. A fast algorithm for nonlinearly constrained optimization calculations, Numerical Analysis, ed. G.A. Watson, Lecture Notes in Mathematics, Springer Verlag, 1978:630
  • 5Vishwanath S, Goldsmith A. Exploring Adaptive Turbo Coded Modulation for Flat Fading Channels[J]. Proc. IEEE VTC'2000, 2000,4: 1778-1783.
  • 6Han S P. A Globally Convergent Method for Nonlinear Programming[J]. Journal of Optimization Theory and Applications, 1977, 22: 297.
  • 7Powell M J D. A Fast Algorithm for Nonlinearly Constrained Optimization Calculations[M]. Numerical Analysis, ed. G. A. Watson, Lecture Notes in Mathematics, Springer Verlag, 1978, 630.
  • 8Alouini M-S, Goldsmith A J. Adaptive M-QAM Modulation over Nakagami Fading Channels[C]. IEEE GLOBECOM Conf., 1997.
  • 9Alamouti S M,Kallel S.Adaptive trellis-coded multiple phased-shift keying for Rayleigh fading channels[J].IEEE Trans Commun,1994,42(6):2305-2314.
  • 10Goldsmith A J,Chua S.Adaptive coded modulation for fading channels[J].IEEE Trans Commun,1998,46(5):595-602.

引证文献6

二级引证文献3

上海交通大学学报
2003年 第6期

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