| CDMA2000反向链路正交系统性能研究 |
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| 引用本文： | 张欣,窦中兆,蔡启明,杨大成.CDMA2000反向链路正交系统性能研究[J].北京邮电大学学报,2004,27(3):53-57. |
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| 作者姓名： | 张欣 窦中兆 蔡启明 杨大成 |
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| 作者单位： | 北京邮电大学 电信工程学院, 北京 100876 |
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| 摘 要： | 基于现有CDMA2000信道结构,研究了反向链路正交方案,并利用rise-over-thermal(ROT)准则对该系统容量进行了分析。数值计算结果和动态系统级仿真表明,与非正交反向链路对比,采用反向链路正交降低了来自本小区的干扰,使系统容量有显著提高,但可用正交码资源限制了这种增益。
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| 关 键 词： | 码分多址 反向链路正交 正交因子 |
| 文章编号： | 1007-5321(2004)03-0053-05 |
| 收稿时间： | 2003-07-03 |
| 修稿时间： | 2003年7月3日 |
Study on System Performance of Reverse Link Orthogonality in CDMA2000 |
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| ZHANG Xin,DOU Zhong-zhao,CAI Qi-ming,YANG Da-cheng.Study on System Performance of Reverse Link Orthogonality in CDMA2000[J].Journal of Beijing University of Posts and Telecommunications,2004,27(3):53-57. |
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| Authors: | ZHANG Xin DOU Zhong-zhao CAI Qi-ming YANG Da-cheng |
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| Affiliation: | Telecommunication Engineering School, Beijing University of Posts andTelecommunications, Beijing 100876, China |
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| Abstract: | An orthogonal reverse link (RL) method is studied based on the current CDMA2000 channel structure. The effect on RL system capacity is analyzed by use of rise-over-thermal (ROT) criterion. The numerical calculations and dynamic system level simulations show that the system capacity, comparing with non-orthogonal RL, is enlarged significantly by reduction of the intra-cell interference for orthogonal RL. On the other hand, the gain is limited by the orthogonal code resources in the system. |
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| Keywords: | code division multiple access reverse link orthogonality orthogonal factor |
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