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部分判决的OSIC:一种改进的VBLAST解码算法 被引量：2

Partial Decision OSIC:a Modified Detection Algorithm for VBLAST
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摘要 VBLAST的传统译码算法:排序连续干扰抵消OSIC(Ordered Successive Interference-Cancellation),与最优译码算法:最大似然(Maximum Likelihood,ML)比较,虽然降低了复杂度,但其译码性能却相差较远。该文提出了一种改进的OSIC的译码算法:部分判决的排序干扰抵消算法(PartialDecision OSIC)。该算法在各层的判决中增加候选判决符号,并且在最后一层的判决中使用了最大似然检测,从而提高了译码的性能。从仿真结果可以看出,该算法比传统的VBLAST译码算法性能有较大的提高。 Ordered Successive Interference Cancellation (OSIC), the conventional detection algorithm for VBLAST, decreases the complexity, comparing with the Maximum Like lihood (ML), but its performance is much worse than that of ML. In this paper, Partial Decision OSIC (PD_OSIC), a modified detection algorithm is presented for VBLAST. It increases the number of candidate decision symbols and uses ML detection in the last layer, so it improves the detection performance. The simulation results show that the algorithm proposed gets far better performance than OSIC.
作者 兰洋 王海峰 陈明 程时昕
机构地区 东南大学移动通信国家重点实验室
出处 《电子与信息学报》 EI CSCD 北大核心 2004年第5期760-765,共6页 Journal of Electronics & Information Technology
基金 芬兰诺基亚移动电话公司资助项目
关键词 多输入多输出 部分判决 OSIC 排序连续干扰抵消 最大似然检测 移动通信 MIMO VBLAST PD_OSIC
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献7

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同被引文献12

  • 1万畅,范俊波,罗孝彬.复数旋转码与分层空时编码的结合研究[J].计算机与数字工程,2006,34(3):64-65. 被引量：1
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  • 5[4]FOSCHINI G J,GOLDEN G D,VALENZUELA R A,WOLNIANSKI P W.Simplified processing for high spectral efficiency wireless communication employing multi -element arrays[J].IEEE J.Select.Areas Commun,1999,17:1841-1852.
  • 6[5]DA SHAN S,JOSEPH M K.Layered space-time codes for wireless communications using multiple transmit antennas[J].IEEE Proceedings of International Conference on Communications,1999(1):436-440.
  • 7[6]WUBBEN D R,KAMMEYER K D.MMSE -based lattice-reduction for near-ML detection of MIMO systems[J].Smart Antennas,2004 (2):106-113
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  • 9[8]VAHID T,AYMAN N,NAMBI S,ROBERT A C.Combined array processing and space-time coding[J].IEEE Trans.Inform.Theory,1999,45 (4):1121 -1128.
  • 10谢显中,苗洪雷,李颖,王新梅.分层空时码的模型、译码接收及其性能仿真[J].通信学报,2001,22(8):7-13. 被引量：7

引证文献2

二级引证文献1

电子与信息学报
2004年 第5期

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