| 差异性QoS条件下CDMA系统在衰落信道中的性能分析 |
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| 引用本文： | 潘甦 孟庆明 酆广增. 差异性QoS条件下CDMA系统在衰落信道中的性能分析[J]. 南京邮电学院学报(自然科学版), 2007, 27(6): 14-18,23 |
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| 作者姓名： | 潘甦 孟庆明 酆广增 |
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| 作者单位： | [1]南京邮电大学通信与信息工程学院,江苏南京210003 [2]东南大学移动通信国家重点实验室,江苏南京210096 |
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| 基金项目： | 江苏省高校自然科学基础研究基金（06KJAS1001,06KJB510078）资助项目 |
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| 摘 要： | 未来B3GCDMA系统采取不同误码率和带宽要求的业务分配不同功率和传输速率的方法。分析了在变速率、多功率级别条件下CDMA系统在衰落信道下的性能，给出了系统接收机信号噪声比的解析表达式和不同业务所需功率之间的关系，并对数值结果进行了讨论。
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| 关 键 词： | 码分多址 衰落信道 信号噪声比 |
| 文章编号： | 1673-5439（2007）06-0014-05 |
| 收稿时间： | 2006-04-05 |
| 修稿时间： | 2006-09-21 |
Performance Analysis for Multi-Rate and Multi-Power Levels CDMA Systems under the Fading Channel |
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| PAN Su, MENG Qing-ming, FENG Guang-zeng. Performance Analysis for Multi-Rate and Multi-Power Levels CDMA Systems under the Fading Channel[J]. Journal of Nanjing University of Posts and Telecommunications(Natural Science), 2007, 27(6): 14-18,23 |
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| Authors: | PAN Su MENG Qing-ming FENG Guang-zeng |
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| Abstract: | The B3G CDMA system allocates different power level and transmission bit rate to heterogeneous services with different BER and bandwidth requirements. This paper analyses the system performance of the CDMA system with multi-level power allocation and variable bit rate transmission under the fading channel. The expression of signal to noise ratio of the system receiver is given in a close form. The relationship among the required power levels for different services is presented and the numerical results are discussed. |
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| Keywords: | CDMA Fading channel Signal to noise ratio |
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