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| MC-CDMA系统的功率分配算法性能分析 | |
| 引用本文： | 杨柳,唐云,李翠然.MC-CDMA系统的功率分配算法性能分析[J].兰州理工大学学报,2008,34(3). |
| 作者姓名： | 杨柳 唐云 李翠然 |
| 作者单位： | 1. 深圳职业技术学院,电子与信息工程学院,广东,深圳518055 2. 北京环球信息应用开发中心,北京,100094 3. 兰州交通大学,电子与信息工程学院,甘肃,兰州730070 |
| 摘 要： | 针对多载波调制技术的优点,基于Kondo等人提出的MC-CDMA系统方案,分析固定和可变步长的两种闭环功率控制算法对系统误码性能的影响,与单载波CDMA系统进行比较.仿真结果表明,当移动台以低速或中速运动,采用同一功率控制算法时,多载波系统的误码性能明显优于单载波系统;而对同一系统,采用可变步长的性能优于采用固定步长的性能. |
| 关 键 词： | 多载波扩展频谱码分多址 闭环功率控制 频率分集 |
Performance analysis of power distribution controlling algorithm of MC-CDMA system |
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| YANG Liu,TANG Yun,LI Cui-ran.Performance analysis of power distribution controlling algorithm of MC-CDMA system[J].Journal of Lanzhou University of Technology,2008,34(3). | |
| Authors: | YANG Liu TANG Yun LI Cui-ran |
| Abstract: | Taking the merit of multicarrier modulation technology into consideration and based on the scheme of MC-CDMA systems given by Kondo et al,the influence of two close-loop power controlling algorithms with fixed and alterable step length on the error code performance of the systems was analyzed and compared with that of CDMA system with single carrier wave.The simulation results showed that the MC-CDMA system was shown to have superior error code performance to that of CDMA system with single carrier wave when the mobile transmitter moved with low or moderate velocity and an identical power controlling algorithm was employed.And,when the alterable step length was used,the said performance was superior to that with fixed length. |
| Keywords: | MC-CDMA Close-loop power control Frequency diversity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |