| 基于不同调制技术的多频带UWB-OFDM系统性能比较 |
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| 引用本文： | LI Yu-hong,葛宁,LU Jian-hua,周正.基于不同调制技术的多频带UWB-OFDM系统性能比较[J].系统仿真学报,2008,20(7):1695-1699. |
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| 作者姓名： | LI Yu-hong 葛宁 LU Jian-hua 周正 |
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| 作者单位： | 1. 清华大学,电子工程系,北京,100084
2. 北京邮电大学,电信工程学院,北京,100876 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家重点基础研究发展计划(973计划) |
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| 摘 要： | 多频带UWB-OFDM系统是高速、短距离WPANs物理层的理想接入方案,具有广阔的应用前景.研究了在AWGN和IEEE 802.15.3a UWB多径信道模型下,基于两种不同调制技术的多频带UWB-OFDM系统的误码性能,分析了多频带UWB-OFDM系统中插入保护间隔对其系统性能的影响.仿真结果表明:基于QPSK调制技术的UWB-OFDM系统较基于16QAM的系统有较好的误码性能.
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| 关 键 词： | 超宽带(UWB) 正交频分复用(OFDM) 调制 保护间隔 |
Performance Comparison of Multi-band UWB-OFDM System Between Two Different Modulation Techniques |
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| LI Yu-hong,GE Ning,LU Jian-hua,ZHOU Zheng.Performance Comparison of Multi-band UWB-OFDM System Between Two Different Modulation Techniques[J].Journal of System Simulation,2008,20(7):1695-1699. |
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| Authors: | LI Yu-hong GE Ning LU Jian-hua ZHOU Zheng |
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| Abstract: | Multi-band Ultra-Wideband orthogonal frequency division multiplexing(UWB-OFDM) system is an ideal access solution for high data rate ,short range WPANs physical layer and it has broad application prospect.The bit error rate(BER) performance between two different modulation techniques was studied in AWGN and IEEE 802.15.3a UWB multi-path channel model,and the effect on multi-band UWB-OFDM system performance was analyzed by adding the guard interval.Simulation results show that QPSK modulation performs much better than 16QAM modulation. |
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| Keywords: | Ultra-Wideband(UWB) Orthogonal Frequency Division Multiplexing(OFDM) Modulation Guard interval |
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