| MIMO-OFDM系统自适应高效功率分配 |
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| 引用本文： | 王丽,陈帅,李营.MIMO-OFDM系统自适应高效功率分配[J].通信技术,2011,44(4):74-76. |
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| 作者姓名： | 王丽 陈帅 李营 |
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| 作者单位： | 淮南师范学院计算机与信息工程系,安徽淮南,232038 |
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| 基金项目： | 淮南师范学院科研基金资助项目 |
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| 摘 要： | 基于注水算法和Campello算法的基本思想,提出了一种新的多输入多输出-正交频分复用（MIMO-OFDM）系统自适应混合高效功率分配算法。该算法先基于注水算法采用速率最大化准则计算开关信道的临界值,并对功率进行一次分配,然后基于Campello算法对剩余功率进行再次分配。仿真表明：此高效算法可以实现对信道子载波的功率和比特有效分配,且系统的性能比Campello算法有所改善,并且随着收发天线的增加系统性能逐渐提高。
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| 关 键 词： | 注水算法 Campello算法 混合高效功率分配算法 自适应 |
Adaptive Efficient Power Allocation in MIMO-OFDM System |
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| WANG Li,CHEN Shuai,LI Ying.Adaptive Efficient Power Allocation in MIMO-OFDM System[J].Communications Technology,2011,44(4):74-76. |
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| Authors: | WANG Li CHEN Shuai LI Ying |
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| Affiliation: | WANG Li,CHEN Shuai,LI Ying(Computer and Information Engineering Dept.of Huainan Normal University,Huainan,Anhui,232038,China) |
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| Abstract: | Based on the water-filling algorithm and Campello algorithm,a novel adaptive hybrid efficient power allocation algorithm for MIMO-OFDM system is proposed.Water-filling algorithm is adopted to compute the threshold of switch channel with the rate maximization criterion and complete the power allocation.Then Campello algorithm is again adopted to complete the rest-power allocation.Simulation shows that the efficient algorithm could implement subchannel carrier power and bit efficient allocation,the system per... |
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| Keywords: | water-filling algorithm Campello algorithm hybrid efficient power allocation algorithm adaptive |
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