| 多小区部分宏分集功率控制算法 |
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| 引用本文： | 刘沛,朱世华,李英.多小区部分宏分集功率控制算法[J].西安交通大学学报,2001,35(6):591-594. |
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| 作者姓名： | 刘沛 朱世华 李英 |
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| 作者单位： | 西安交通大学电子与信息工程学院，西安 710049 |
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| 基金项目： | 国家自然科学基金资助项目(60072040)；教育部博士点基金资助项目(9569823)． |
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| 摘 要： | 研究了多小区条件下宽带码分多址（WCDMA）系统的功率控制问题，对上行链路提出了一种对部分用户进行最大比合并的功率控制算法，并求出了相应的系统容量的上界，该算法的特点是动态地、有选择地对部分用户的发射信号在各接收机上共同接收，并进行最大比合并，它具有较高的灵活性，并能将高负菏小区的业务量分散到相邻小区，因而能有效地提高系统的总体容量，但系统容量的提高是以设备复杂度的增加为代价的。
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| 关 键 词： | 码分多址 功率控制 宏分集 算法 |
| 文章编号： | 0253－987X（2001）06-0591-04 |
| 修稿时间： | 2000年10月27 |
Power Control Algorithm
with Partial-User Macrodiversity in Multi-Cell Wideband Code Division Multiple Access
System |
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| Liu Pei,Zhu Shihua,Li Ying.Power Control Algorithm
with Partial-User Macrodiversity in Multi-Cell Wideband Code Division Multiple Access
System[J].Journal of Xi'an Jiaotong University,2001,35(6):591-594. |
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| Authors: | Liu Pei Zhu Shihua Li Ying |
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| Institution: | Liu Pei,Zhu Shihua,Li Ying [WT6BZ] |
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| Abstract: | A new application of maximal-ratio-combination to the power control of wideband code division multiple access(WCDMA) systems is presented. It dynamically selects some users and decodes their signal by all the receivers in the network. By satisfying the requirement of average signal-to-interference ratio, the transmitter's power was derived by iteration, and the upper bound of system capacity was also derived. The main advantage of the algorithm is to distribute traffic from heavy loaded cells to its surrounding cells while not too complex for practical system. It is therefore flexible, and can increase the overall system capacity. This algorithm is a trade-off between capacity and system complexity. |
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| Keywords: | code division multiple access power control macrodiversity |
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