| PSAM自适应调制OFDM的频谱效率 |
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| 引用本文： | 王军,唐友喜,李少谦.PSAM自适应调制OFDM的频谱效率[J].电子科技大学学报(社会科学版),2003(5). |
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| 作者姓名： | 王军 唐友喜 李少谦 |
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| 作者单位： | 电子科技大学通信抗干扰技术国家级重点实验室，电子科技大学通信抗干扰技术国家级重点实验室，电子科技大学通信抗干扰技术国家级重点实验室 成都 610054，成都 610054，成都 610054 |
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| 基金项目： | 国家863计划资助项目,编号:2001AA123013 |
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| 摘 要： | 给出了采用导引符号辅助相干解调的自适应调制正交频分复用系统模型,分析了导引符号辅助相干解调自适应调制正变频分复用系统频谱效率的定义和计算方法,并结合具体实例得到了数值结果。结果表明,在分析和计算频谱效率时,必须考虑接收端非理想信道估计和系统开销的影响,得到的结果才具有实际意义。
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| 关 键 词： | 正交频分复用 导引符号辅助相干解调 自适应调制 频谱效率 |
Spectral Efficiency of Adaptive Modulation OFDM Using PSAM |
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| Wang Jun Tang Youxi Li Shaoqian.Spectral Efficiency of Adaptive Modulation OFDM Using PSAM[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2003(5). |
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| Authors: | Wang Jun Tang Youxi Li Shaoqian |
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| Abstract: | The model of pilot symbols assisted modulation adaptive modulation orthogonal frequehcy division multiplexing system is given in Rayleigh fading ?Based on this model, spectral efficiency definition and calculation are analyzed. According to bit error rate of PSAM OFDM, the numerical result is presented under specific channel model. In order to be reference for practical system design, the result shows influences of receiver non-ideal channel estimation and system overhead must be considered. |
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| Keywords: | orthogonal frequency-division multiplexing pilot symbols assisted modulation adaptive modulation spectral efficiency |
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