| 一种新颖的多用户OFDM资源分配算法 |
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| 引用本文： | 叶兰兰,李君,金宁. 一种新颖的多用户OFDM资源分配算法[J]. 中国计量学院学报, 2012, 23(4): 379-382 |
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| 作者姓名： | 叶兰兰 李君 金宁 |
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| 作者单位： | 中国计量学院信息工程学院,浙江杭州,310018 |
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| 基金项目： | 浙江省自然科学基金资助项目 |
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| 摘 要： | 在多用户正交频分复用(OFDM)系统中设计一种新颖的子载波-功率分配方法来最大化用户数据传输速率.这个方案分成两部分,子载波分配和功率分配.其中,子载波分配方法是在信道容量矩阵中将信道容量最好的子载波首先进行分配,功率分配采用注水方法.研究和模拟结果表明,该算法在只改变各个子载波增益系数的基础上,基本保持了较低的复杂度,并且极大地提高了用户数据传输速率.
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| 关 键 词： | 多用户正交频分复用系统 子载波分配 功率分配 最大化用户数据传输速率 |
A novel power allocation algorithm in multiuser OFDM systems |
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| YE Lan-lan , LI Jun , JIN Ning. A novel power allocation algorithm in multiuser OFDM systems[J]. Journal of China Jiliang University, 2012, 23(4): 379-382 |
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| Authors: | YE Lan-lan LI Jun JIN Ning |
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| Affiliation: | (College of Information Engineering,China Jiliang University,Hangzhou 310018,China) |
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| Abstract: | A novel subcarrier power allocation algorithm was to maximize the user data transmission rate in multiuser OFDM systems.The algorithm was divided into two parts: subcarrier allocation and power allocation.Subcarrier allocation allocated subcarriers which had the best channel capacity to users;and power allocation used water-filling.Studies and simulation results showed that the algorithm by only changing the gain coefficients of subcarriers substantially maintains a low complexity,greatly improves the user data transmission rate. |
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| Keywords: | multiuser OFDM system subcarrier allocation power allocation maximum user data transmission rate |
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