| 传输分集技术在第三代移动通信系统中的应用 |
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| 引用本文： | 李俨,封翔.传输分集技术在第三代移动通信系统中的应用[J].电子学报,2000,28(Z1):145-148. |
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| 作者姓名： | 李俨 封翔 |
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| 作者单位： | 1. 信息产业部电信科学技术研究院移动中心, 北京学院路40号, 北京 100083;2. 安捷伦科技软件有限公司, 北京 100044 |
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| 摘 要： | 本文首先分析了衰落信道中采用分集技术时卷积编码Viterbi软判算法的性能,指出具有独立衰落特性的分集信道数越多,接收的性能越好.并给出了采用不同的分集技术时系统性能的仿真结果,结果表明采用传输分集技术可以明显提高前向链路的性能,而不增加移动终端的复杂度.传输分集是一种有效可行的对抗衰落的技术,有望在第三代移动通信系统中得到广泛应用.
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| 关 键 词： | 传输分集 第三代移动通信 扩频通信 卷积编码 |
| 收稿时间： | 2000-06-13 |
Applicatioin of Transmit Diversity Techniques in Third Generation Mobile Communication Systems |
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| LI Yan,FENG Xiang.Applicatioin of Transmit Diversity Techniques in Third Generation Mobile Communication Systems[J].Acta Electronica Sinica,2000,28(Z1):145-148. |
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| Authors: | LI Yan FENG Xiang |
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| Affiliation: | 1. China Academy of Telecommunication Technology, No.40, Xue yuan Road, Beijing, 100083, China;2. Agilent Software Ltd. Co., Beijing, 100044, China |
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| Abstract: | The performance of convolutional coding with diversity using Viterbi soft-decision decoding algorithm in Rayleigh fading channel is analyzed,and it shows that the more the independent diversity channels,the better the performance.Then the diversity techniques used in 3G mobile communication system are introduced and simulations for different diversity techniques are carried out.The results show that the link performance can be improved obviously using transmit diversity technique without increasing the complexity of mobile terminal.Transmit diversity is an efficient technique to combat fading and it will be widely used in 3G mobile communication system. |
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| Keywords: | transmit diversity 3G mobile communication spread-spectrum communication convolutional coding |
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