| 一种多用户天线组选择辅助的MIMO-OFDM新型子载波分配算法 |
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| 引用本文： | 郭磊,朱光喜,梁学俊. 一种多用户天线组选择辅助的MIMO-OFDM新型子载波分配算法[J]. 微电子学与计算机, 2008, 25(2): 168-171,175 |
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| 作者姓名： | 郭磊 朱光喜 梁学俊 |
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| 作者单位： | 华中科技大学,电子与信息工程系,湖北,武汉,430074 |
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| 基金项目： | 国家自然科学基金 , 国家高技术研究发展计划(863计划) |
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| 摘 要： | 提出了一种适应多用户MIMO-OFDM下行传输的新型子载波分配算法.该算法根据各个用户的信道特征,将空间维多用户天线组选择手段引入频率维的子载波组分配算法中,从而在不明显降低系统整体性能的前提下大大降低发射端计算复杂度,使之更适用于实时信道传输环境.仿真结果表明,该算法在计算复杂度大幅减小的情况下仍能保证系统性能无明显损失.
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| 关 键 词： | 天线选择 MIMO OFDM 自适应 多用户 多用户 天线 选择 载波分配算法 Transmission Selection Group Antenna Multiuser Allocation Band Subcarrier 损失 整体性能 情况 仿真结果 传输环境 信道特征 计算复杂度 前提 |
| 文章编号： | 1000-7180（2008）02-0168-04 |
| 收稿时间： | 2007-03-09 |
| 修稿时间： | 2007-03-09 |
A Novel Subcarrier Band Allocation with Multiuser Antenna Group Selection for MIMO-OFDM Transmission |
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| GUO Lei,ZHU Guang-xi,LIANG Xue-jun. A Novel Subcarrier Band Allocation with Multiuser Antenna Group Selection for MIMO-OFDM Transmission[J]. Microelectronics & Computer, 2008, 25(2): 168-171,175 |
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| Authors: | GUO Lei ZHU Guang-xi LIANG Xue-jun |
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| Abstract: | In this paper, we propose a novel subcarrier band allocation algorithm accompanied with antenna group selection in multiuser MIMO-OFDM downlink transmission based on channel characteristic of users. With introducing spatial-dimension to subcarrier allocation in frequency dimension, this algorithm can significantly reduce the computational complexity of transmitter without apparent performance attenuation, which is more suitable for real-time environment.. Simulation results show that our proposed algorithm obtains an approximate optimal performance with significant computational complexity reduction. |
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| Keywords: | antenna selection MIMO OFDM adaptive muhiuser |
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