| 基于天线阵元功率限制MIMO系统的自适应调制 |
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| 引用本文： | 李国才,龚耀寰.基于天线阵元功率限制MIMO系统的自适应调制[J].信号处理,2006,22(4):585-588. |
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| 作者姓名： | 李国才 龚耀寰 |
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| 作者单位： | 电子科技大学电子工程学院,四川,成都,610054 |
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| 基金项目： | 国家高技术研究发展计划(863计划);国家自然科学基金 |
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| 摘 要： | 本文研究了天线阵元的发射功率受限MIMO系统。在信道准静态和系统发端已知信道信息的假设下,我们研究了该受限MIMO系统性能。在系统优化分析基础上,设计了一种简单的Bit分配方案进行系统自适应调制逼近系统容量。仿真结果表明该系统能更好接近真实环境,调制方案有较好性能。
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| 关 键 词： | MIMO信道 自适应调制 |
| 修稿时间： | 2004年11月30 |
Adaptive modulation in MIMO with power constraints on each AFE |
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| Li Guocai,Gong Yaohuan.Adaptive modulation in MIMO with power constraints on each AFE[J].Signal Processing,2006,22(4):585-588. |
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| Authors: | Li Guocai Gong Yaohuan |
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| Abstract: | In this paper we address a simple adaptive modulation scheme for multiple-input multiple-output (MIMO) channels. Assuming a block fading channel model and perfect knowledge of channel state,we invested adaptive modulation scheme that provides better throughput under the constraints on the power of each antenna element.Our analysis is based on the Convex Optimization.Then a low-complexity iterative bit-loading algorithm implementing this solution is also developed.The simulation results have shown the po- tential of our discussed system. |
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| Keywords: | bit-loading |
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