| CDMA移动卫星通信系统容量的计算 |
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| 引用本文： | 张更新.CDMA移动卫星通信系统容量的计算[J].电子与信息学报,1997,19(2):238-244. |
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| 作者姓名： | 张更新 |
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| 作者单位： | 通信工程学院卫星通信教研室 南京 |
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| 摘 要： | 本文在考虑了下行功率通量密度限制、遮蔽效应、多个系统和相邻波束同频复用、采用话音激活和极化隔离技术的前提下,分别计算和分析了不同下行功率通量密度限制方式、不同信道扩频带宽和不同移动用户接收系统品质因数(G/T)条件下CDMA移动卫星通信系统的容量,并与TDMA和FDMA的容量进行了比较,在最后给出了主要结论。
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| 关 键 词： | CDMA 系统容量 干扰 卫星通信 |
| 收稿时间： | 1995-7-18 |
| 修稿时间： | 1995-12-15 |
THE CAPACITY CALCULATION FOR CDMA MOBILE SATELLITE COMMUNICATION SYSTEM |
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| Zhang Gengxin.THE CAPACITY CALCULATION FOR CDMA MOBILE SATELLITE COMMUNICATION SYSTEM[J].Journal of Electronics & Information Technology,1997,19(2):238-244. |
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| Authors: | Zhang Gengxin |
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| Institution: | Nanjing Institute of Communication Engineering,Nanjing 210016 |
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| Abstract: | On the basis of considering downlink power flux density limit, shadowing effect, frequency reuse in different systems and adjoining spots of same system, adopting voice activity and polarization isolation techniques, the capacity of CDMA mobile satellite communication system at different downlink power flux density limit mode, channel spread bandwidth and mobile user's quality factor of receiving system (G/T) are analysed and calculated, and compared with the ones of TDMA and FDMA. Finally, the conclusions are given. |
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| Keywords: | CDMA System capacity Interference Satellite communication |
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