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Lattice Reduction Aided MMSE Tomlinson-Harashima Precoding Based on VBLAST Algorithm for MIMO Systems

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【作者】 刘锋； 蒋铃鸽； 何晨；

【Author】 LIU Feng, JIANG Ling-ge, HE Chen (Department of-Electronic Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

【机构】 Department of Electronic Engineering Shanghai Jiaotong University； Department of Electronic Engineering Shanghai Jiaotong University； Shanghai 200240 China Shanghai 200240 China； Shanghai 200240 China；

【摘要】 <正>A lattice reduction aided (LRA) minimum mean square error (MMSE) Tomlinson-Harashima pre-coding (THP) was proposed based on vertical Bell Labs layered space time (VBLAST) algorithm for multiple input multiple output (MIMO) systems. The extended channel was used to provide optimal tradeoff between residual interference and noise amplification. The processing based on lattice reduction method helps achieve maximal diversity order. The VBLAST algorithm was applied to get the optimal processing ordering for successive interference cancellation (SIC) at transmitter. Simulation results show that the proposed algorithm outperforms conventional THP and the LRA zero-forcing (ZF) THP with full diversity order.

【Abstract】 A lattice reduction aided (LRA) minimum mean square error (MMSE) Tomlinson-Harashima pre-coding (THP) was proposed based on vertical Bell Labs layered space time (VBLAST) algorithm for multiple input multiple output (MIMO) systems. The extended channel was used to provide optimal tradeoff between residual interference and noise amplification. The processing based on lattice reduction method helps achieve maximal diversity order. The VBLAST algorithm was applied to get the optimal processing ordering for successive interference cancellation (SIC) at transmitter. Simulation results show that the proposed algorithm outperforms conventional THP and the LRA zero-forcing (ZF) THP with full diversity order.

【关键词】 multiple input multiple output systems； lattice reduction； vertical Bell Labs layered space time； minimum mean square error； Tomlinson-Harashima precoding；
【Key words】 multiple input multiple output systems； lattice reduction； vertical Bell Labs layered space time； minimum mean square error； Tomlinson-Harashima precoding；
【基金】 The National Natural Science Foundation of China (No. 60772100); The Science and Technology Committee of Shanghai (No. 060215013)
  • 【文献出处】 Journal of Shanghai Jiaotong University ,上海交通大学学报(英文版) , 编辑部邮箱 ,2008年01期
  • 【分类号】TN919.3
  • 【被引频次】1
  • 【下载频次】111
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