| 动态信道分配在TD-SCDMA系统中的应用研究 |
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| 引用本文： | 徐志强,谢显中. 动态信道分配在TD-SCDMA系统中的应用研究[J]. 重庆邮电学院学报(自然科学版), 2007, 0(2) |
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| 作者姓名： | 徐志强 谢显中 |
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| 作者单位： | 南华大学电气工程学院通信教研室 湖南衡阳421001(徐志强)，重庆邮电大学 重庆400065(谢显中) |
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| 摘 要： | 针对TD-SCDMA系统,充分结合TD-SCDMA系统的关键技术、资源特点、业务特点和干扰特点,寻求适用于该系统(包括频域载频、时域时隙、码域码道和空域位置)的最优组合动态信道分配策略,为了比较该策略下不同动态信道分配(DCA)算法性能,提出了4种DCA算法,并结合实际情况建立仿真模型,通过正确设置仿真参数,进行系统级仿真,以确定各种动态信道分配算法,各种仿真参数设置对系统呼阻率的影响。仿真结果表明,TD-SC- DMA系统是下行受限的系统,其上、下行干扰门限理想值分别为1.5和3.1左右。
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| 关 键 词： | 动态信道分配(DCA) 智能天线 同道干扰 阻塞率 TD-SCDMA |
Application and study of dynamic channel allocation in TD-SCDMA system |
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| XU Zhi-qiang Communications Staff Room,College of Electrical Engineering,University of South China.Hengyang ,P.R.China XIE Xian-zhong Chongqing University of Post and Telecommunications,Chongqing ,P.R.China. Application and study of dynamic channel allocation in TD-SCDMA system[J]. Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition), 2007, 0(2) |
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| Authors: | XU Zhi-qiang Communications Staff Room College of Electrical Engineering University of South China.Hengyang P.R.China XIE Xian-zhong Chongqing University of Post Telecommunications Chongqing P.R.China |
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| Affiliation: | XU Zhi-qiang Communications Staff Room,College of Electrical Engineering,University of South China.Hengyang 421001,P.R.China XIE Xian-zhong Chongqing University of Post and Telecommunications,Chongqing 400065,P.R.China |
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| Abstract: | Aiming at the TD-SCDMA system and associating with its key technologies,resources,services and inter- ferences,the optimum dynamic channel allocation(DCA)strategy about the frequency,the time slot,the code and the position beam is searched.For comparing the performance of different DCA arithmetic,four DCA arithmetics are proposed;moreover,the practical simulative models are built and the practical simulative parameters are set. Through the simulation,some conclusions about the different DCA arithmetic and simulative parameters to the sys- tem blocking probability can be gained.The simulation results indicate that TD-SCDMA system is a DL-limited sys- tem,and its interferences thresholds in up and down link are about 1.5 and 3.1 respectively. |
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| Keywords: | dynamic channel allocation(DCA) smart antenna coordinate channel interfere blocking probability TD-SCDMA |
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