| 采用扩展联合检测提高TD-SCDMA系统的健壮性 |
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| 引用本文： | 闫发军,孙光永,王文博.采用扩展联合检测提高TD-SCDMA系统的健壮性[J].北京邮电大学学报,2005,28(5):66-69. |
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| 作者姓名： | 闫发军 孙光永 王文博 |
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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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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 提出了扩展联合检测的方法，用于消除邻小区强干扰和小区内干扰. 首先确定干扰较大的邻小区用户的扩频码，估计其信道特性，并将其扩充至系统矩阵，和期望小区接入用户一起进行联合检测，同时消除邻小区和小区内干扰. 仿真结果表明，此方法能够有效消除时分同步码分多址（TDSCDMA）系统中邻小区强干扰，减少邻小区用户处于小区边缘时造成的系统性能波动，提高系统的健壮性.
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| 关 键 词： | 时分-同步码分多址 时分双工 扩展联合检测 干扰消除 |
| 文章编号： | 1007-5321（2005）05-0066-04 |
| 收稿时间： | 2005-04-19 |
| 修稿时间： | 2005年4月19日 |
Enhancing the Robustness of TD-SCDMA System by Extended Joint Detection Scheme |
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| YAN Fa-jun, SUN Guang-yong, WANG Wen-bo.Enhancing the Robustness of TD-SCDMA System by Extended Joint Detection Scheme[J].Journal of Beijing University of Posts and Telecommunications,2005,28(5):66-69. |
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| Authors: | YAN Fa-jun SUN Guang-yong WANG Wen-bo |
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| Affiliation: | School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | A scheme of extended joint detection was presented,which was used to cancel strong adjacent cell interference(ACI) and intra cell interference.The spread code was judged and the channel characteristic of severe ACI was estimated first.Then the system matrix was extended with such information to joint detect with the users in desired cell,canceling ACI and intra cell interference simultaneously.Simulation results show that the severe ACI in time division-synchronous code division multiple access(TD-SCDMA) system can be efficiently cancelled,the performance fluctuation can be decreased and the robustness of the system can be enhanced with this scheme. |
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| Keywords: | time division-synchronous code division multiple access time division duplex extended joint detection interference cancellation |
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