| 宽带CDMA上行链路含导频信号的调制方式的性能分析 |
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| 引用本文： | 王文博,蒋南雁,杨大成.宽带CDMA上行链路含导频信号的调制方式的性能分析[J].通信学报,1999,20(8):19-25. |
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| 作者姓名： | 王文博 蒋南雁 杨大成 |
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| 作者单位： | 北京邮电大学 |
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| 摘 要： | 研究了宽带 Ｃ Ｄ Ｍ Ａ 上行链路含有导频信道／导频符号的调制方式，分别给出相应的相干解调模型。分析和比较，含导频信道／导频符号的相干解调与非相干解调的性能。并推导出导频信号功率占信号总功率的比例与所获信噪比增益大小，及与系统容量关系。表明宽带 Ｃ Ｄ Ｍ Ａ 在上行链路采用含导频的相干解调技术，可以带来上行链路容量的提高。
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| 关 键 词： | 相干解调 导频信道 导频符号 |
Performance Analysis of Wideband CDMA with Coherent Demodulation in the Uplink |
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| Wang Wenbo,Jiang Nanyan,Yang Dacheng.Performance Analysis of Wideband CDMA with Coherent Demodulation in the Uplink[J].Journal on Communications,1999,20(8):19-25. |
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| Authors: | Wang Wenbo Jiang Nanyan Yang Dacheng |
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| Abstract: | In this paper,coherent demodulation models,corresponding to two modulation schemes including pilot channel and pilot symbol inserted into the uplink of wideband CDMA are given Analysis and comparison of both pilot channel assisted and pilot symbol assisted coherent modulation,with that of noncoherent modulation are concerned The gain of signal to noise ratio and the system capacity enhancement are derived,in the term of the ratio of pilot power to the total signal power It is shown that higher capacity in the uplink is achieved when coherent modulation is implemented |
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| Keywords: | coherent demodulation pilot channel pilot symbol |
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