| MIMO-OFDM系统基于线性预编码的自适应加载方案 |
| |
| 引用本文： | 魏仁,陈力,龙自强,李雪利. MIMO-OFDM系统基于线性预编码的自适应加载方案[J]. 现代电子技术, 2007, 30(10): 85-87 |
| |
| 作者姓名： | 魏仁 陈力 龙自强 李雪利 |
| |
| 作者单位： | 汕头大学,广东,汕头,515063 |
| |
| 摘 要： | 在MIMO-OFDM无线通信系统中,采用基于子载波线性预编码设计和变步长加载算法得到一种优化的自适应加载算法,在完全已知信道状态前提下,能在满足固定速率和给定误比特率约束下使系统总发射功率达到最小。仿真结果表明,该算法复杂度比Capello算法低,并且性能与之近似,都远远优于非自适应MIMIO系统的性能。
|
| 关 键 词： | 多输入多输出 正交频分复用 线性预编码 比特加裁 |
| 文章编号： | 1004-373X（2007）10-085-03 |
| 收稿时间： | 2006-09-26 |
| 修稿时间： | 2006-09-26 |
Adaptive Loading Scheme Based on Linear Precoding for MIMO-OFDM System |
| |
| WEI Ren,CHEN Li,LONG Ziqiang,LI Xueli. Adaptive Loading Scheme Based on Linear Precoding for MIMO-OFDM System[J]. Modern Electronic Technique, 2007, 30(10): 85-87 |
| |
| Authors: | WEI Ren CHEN Li LONG Ziqiang LI Xueli |
| |
| Affiliation: | Shantou University, Shantou, 515063, China |
| |
| Abstract: | An adaptive modulation scheme is proposed in order to minimize the total transmission power subject to given BER and transmit data rate in MIMO-OFDM wireless communication systems.It is derived from a linear precoding design and various-step adaptive loading algorithm.The simulation results show that the presented algorithm has a similar system performance to Capello algorithm,but less complexity than it,and both performances are much better than non-adaptive MIMO system. |
| |
| Keywords: | MIMO OFDM linear precoding bit loading |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
