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     Research on a Power Control Algorithm ofSingle Cell CDMA
     一种大区制CDMA功率控制算法的探讨
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     The following conclusions have been made base on this research/the research focus on the following aspects:1 . The operating frequency of the 450MHz wireless access technology is 460.5 -462.0 at central stations and 450.5 - 452.0MHz at terminals. It is employed in the FDD rural wireless access networks using FDMA, with a larger coverage area.
     1.450MHz无线接入技术工作频率为460.5—462.0中心站发射/450.5—452.0MHz终端站发射频段:用于FDD方式农村无线接入系统,采用FDMA技术,大区制组网,覆盖范围大。
短句来源
     A power control algorithm of reverse link of the private large cell CDMA mobile communicaiton system is described. One control scheme based on open loop control and close loop control is presented. Algorithms for two types of power control and computer simulation of power control for a scheme of reverse link are described in detail.
     讨论了大区制码分多址(CDMA)移动通信中反向功率控制的原理,提出了采用开环控制与闭环控制相结合的控制方法.详细地讨论了开环控制、闭环控制算法及反向功率控制的仿真.最后对仿真中有关参数的选取进行了分析.该文对于大区制CDMA移动通信系统的设计具有参考价值.
短句来源
     A power control algorithm of reverse link of the private single cell CDMA mobile communication system is described based on comparing with that of cellular schemes. One control scheme based on open loop control and close loop control is presented. Algorithms and computer simulation of power control of reverse link are described in detail.
     在比较蜂窝制系统和大区制系统功率控制技术的区别的基础上,讨论了大区制码分多址(CDMA)移动通信中的功率控制算法,提出了采用开环控制与闭环控制配合的实现方案,并进行了相应控制算法的仿真。
短句来源
     Finally,the choice of relevant parameters in algorithm is analyzed.
     结合大区制系统的特点,分析了算法中相应参数的设置。
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     Research on a Power Control Algorithm ofSingle Cell CDMA
     一种大区CDMA功率控算法的探讨
短句来源
     Finally,the choice of relevant parameters in algorithm is analyzed.
     结合大区系统的特点,分析了算法中相应参数的设置。
短句来源
     A textual research on the Juntian system
     何物“均田
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     Photoelectrochemical System for Hydrogen Production
     光电化学
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A power control algorithm of reverse link of the private large cell CDMA mobile communicaiton system is described. One control scheme based on open loop control and close loop control is presented. Algorithms for two types of power control and computer simulation of power control for a scheme of reverse link are described in detail. Finally, the choice of relevant parameters in the computer simulation is analyzed. The results are of value to the design of the private large cell CDMA mobile comunication system....

A power control algorithm of reverse link of the private large cell CDMA mobile communicaiton system is described. One control scheme based on open loop control and close loop control is presented. Algorithms for two types of power control and computer simulation of power control for a scheme of reverse link are described in detail. Finally, the choice of relevant parameters in the computer simulation is analyzed. The results are of value to the design of the private large cell CDMA mobile comunication system.

讨论了大区制码分多址(CDMA)移动通信中反向功率控制的原理,提出了采用开环控制与闭环控制相结合的控制方法.详细地讨论了开环控制、闭环控制算法及反向功率控制的仿真.最后对仿真中有关参数的选取进行了分析.该文对于大区制CDMA移动通信系统的设计具有参考价值.

A power control algorithm of reverse link of the private single cell CDMA mobile communication system is described based on comparing with that of cellular schemes.One control scheme based on open loop control and close loop control is presented.Algorithms and computer simulation of power control of reverse link are described in detail.Finally,the choice of relevant parameters in algorithm is analyzed.The results are of value to the design of the private singlecell CDMA mobile communication system.

在比较蜂窝制系统和大区制系统功率控制技术的区别的基础上,讨论了大区制码分多址(CDMA)移动通信中的功率控制算法,提出了采用开环控制与闭环控制配合的实现方案,并进行了相应控制算法的仿真。结合大区制系统的特点,分析了算法中相应参数的设置。该文对于大区制CDMA移动通信系统的设计具有参考价值

The iterative multi-code detection for LAS-CDMA(large area synchronization-code division multi-access) system based on MAP(maximum posterior probability) criterion is studied in this paper. It interchanges the soft information between multi-code detection and channel decoder each other for several times. The iterative detector for non-binary modulation in multi-path fading channel is proposed and the simulation results indicate that the proposed detector can even achieve single-code transmission performance...

The iterative multi-code detection for LAS-CDMA(large area synchronization-code division multi-access) system based on MAP(maximum posterior probability) criterion is studied in this paper. It interchanges the soft information between multi-code detection and channel decoder each other for several times. The iterative detector for non-binary modulation in multi-path fading channel is proposed and the simulation results indicate that the proposed detector can even achieve single-code transmission performance when the iteration times is higher than 3 for QPSK(quadri phase shift key) modulation.

给出了多径衰落信道下一种与前向纠错码相结合的迭代多码检测接收机,它基于最大后验概率准则联合检测多个码字所承载的信息,并与FEC(前向纠错编码)译码器相互传递软信息,重复多次进行迭代检测.在QPSK(四相频移键控)调制方式下通过LAS-CDMA(大区制同步码分多址)系统的仿真,表明所提出的迭代多码检测接收机即使在高维调制方式下依然可以获得显著的迭代增益,并且在迭代一定次数之后可以达到单码传输的性能.

 
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