| 杨雪梅,顾亚平,张俊.利用CPM实现自适应OFDM系统研究[J].声学技术,2007,(3):510~513 |
| 利用CPM实现自适应OFDM系统研究 |
| A novel CPM scheme for adaptive modulation based OFDM system |
| 投稿时间：2006-11-30 修订日期：2007-02-10 |
| DOI： |
| 中文关键词: 正交频分复用-连续相位调制 OFDM-CPM 自适应调制 |
| 英文关键词: OFDM-CPM adaptive modulation |
| 基金项目: |
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| 中文摘要: |
| 在正交频分复用(OFDM)系统中应用自适应技术能有效地提高系统性能。正交频分复用-连续相位调制(OFDM-CPM)通过CPM相关相位状态引入记忆,从而获得比传统OFDM更好的误码性能。文章提出了一种利用单一的CPM调制方式实现自适应OFDM-CPM系统的新方案。仿真结果表明,选取最佳的CPM参数组合,通过改变CPM的参数来实现自适应OFDM-CPM调制,能够获得比传统调制方式要低的门限值,同时系统硬件实现更为简单。 |
| 英文摘要: |
| Application of adaptive technique can effectively improve the system performance of OFDM systems. By using the concept of correlated phase state, OFDM-CPM has better BER performance than traditional OFDM. A new adaptive modulation scheme is proposed to use single CPM based on OFDM-CPM system. Simulation results show that an adaptive OFDM-CPM system can be realized via selecting the optimal CPM parameters and changing these parameters. A lower threshold value can be obtained compared with systems using the traditional modulation. Hardware implementation is easy. |
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