This paper constructs multi-carrier CDMA system.
给出了多载波CDMA系统构架。
In DS - CDMA system, a number of users share a common frequency band.
在DS- CDMA系统中，许多用户占用同一个频带进行通信。
ABSTRACT Multiuser detection is one of the key techniques for future CDMA system.
多用户检测技术是未来CD MA系统的一个关键技术。
CDMA system has its own characteristic of wireless planning and network optimization.
CDMA系统由于自身系统的特征，在无线规划和网络优化中有自己的特点。
This thesis points out that soft switch is an important characteristic of CDMA system.
文中指出，CDMA系统的一个重要的特点是软切换。
Finally, an adaptive subchannel and power allocation scheme for MC-CDMA system is proposed.
针对MC - CD MA系统的上行链路提出了一种自适应子载波和功率分配算法。
In a CDMA system, channel estimates of all received user signals were available at base stations.
在CD ma系统中，所有上行用户信号的信道估计信息都可以在基站上获得。
This paper focuses on the multiuser detection in CDMA system, which includes SISO and MIMO systems.
这篇论文的研究的是CDMA系统中的多用户接收的问题，包括单天线系统和多天线系统。
The multi-user detection is a key technique to solve the problem of MAI existing in DS-CDMA system.
多用户检测技术是码分多址系统中解决多址干扰的关键技术。
In this paper, we only focus on one key technology in the LAS-CDMA system, forward link power control.
本文只针对该系统中的一项关键技术—前向链路功率控制进行分析。
This paper discusses effects of smart antenna on capacity based on analysis of capacity for cellular CDMA system.
基于CDMA蜂房小区系统的容量分析，讨论智能天线对系统容量的影响。
A novel M-ary MC-CDMA system in uplink TDD mode is proposed based on orthogonal cyclic codes and pre-equalization.
提出了一种适用于TDD上行链路的基于预均衡和正交循环码的M元MC-CDMA系统。
MAI is not caused by CDMA system itself, but by the traditional single user receiver strategy used in CDMA system.
然而多址干扰并不是码分多址系统固有的问题，是由传统CDMA系统采用单用户接收方案所造成的。
The application of the algorithms of multistage parallel partial interference cancellation to CDMA system is analyzed.
分析了多级并行部分干扰抵消算法应用于CDMA系统的性能。
If the rate change is allowed, the application of the adaptive receiver to the multirate CDMA system is somewhat cumbersome.
如果速率变换是允许的，自适应接收机在多速率CD MA系统中的应用就会变得非常麻烦。
By unified signal model of antenna array Multicarrier DS-CDMA system, the subspace-based blind channel estimation is achieved.
通过在阵列天线多载波ds - CD MA系统下构造统一的信号模型，实现了基于子空间的信道盲估计。
A joint direction of arrival (DOA) estimation and phase calibration for synchronous CDMA system with decorrelator are presented.
提出了解相关同步CD MA系统一种联合波达方向(DOA)估计与相位标定算法。
Spreading code design and joint detection are two efficient ways to increase CDMA system capacity in multi-path fading channels.
在多径衰落信道CDMA系统中，扩频码设计与联合检测为提高系统容量的两个重要手段。
Multi-user detection technique can cancel multi-access interference, so it can enhance the capacity and performance of CDMA system.
利用多用户检测技术可以抑制多址干扰，从而提高CDMA系统的容量和性能。
The numerical results show that the theoretical BER performance of wideband CDMA system can be improved effectively by this scheme.
数值结果表明，采用这种方案能够有效地提高宽带CDMA系统的理论BER性能。
On the basis of this problem, this thesis provides the method to settle the mobile going in out-of-service in idle mode in CDMA system.
本文正是在考虑到以上问题的基础上，提出了解决CD MA系统手机空闲状态脱网的方案。
This paper puts forward the concept of MC CDMA system, that can both measure distance accurately with PN code and transmit High speed data.
提出了多载波码分多址测控通信系统的概念。该系统不但能完成伪码精确测距，而且能进行高速数据传输。
The system performance is evaluated in the presence of partial band interference, it is compared with that of a single-carrier DS CDMA system.
文中估计了存在部份带宽干扰下系统的性能，并与单载波直扩码分多址系统进行了比较。
A new combined scheme of array signals processing and partial Parallel Interference Canceller is proposed for the uplink receiving of DS-CDMA system.
提出一种新的用于DS - CD MA系统上行链路阵列接收加部分并行干扰消除的联合处理方案。
The CDMA system attains the better performance of resisting near-far effective because of employing this forward error control (FEC) channel coding technology.
由于采用了这种前向差错控制（FEC）信道编码技术，使得CDMA系统具有了较好的抗远近效应性能。
The multi-user detection algorithm based on the EM method is used to look for the maximum-likelihood estimation of users' data iteratively in a DS-CDMA system.
基于EM方法的多用户检测算法采用EM迭代方法来求解DS-CDMA系统中各用户发送数据的最大似然估计解。
It is shown through simulations that adaptive subcarrier allocation scheme, when used in conventional MC CDMA system, the performance will be greatly improved.
仿真结果表明，采用本文所提出的方案时，传统的MC -CD MA系统的性能将得到明显的改善。
Based on the signal model and the multipath channel model of CDMA system, the steering vectors of multipaths of USES are estimated by using cold filtering method.
根据CDMA系统信号模型和多径信道模型，运用码滤波方法对CD MA系统用户信号及其多径信号导引向量进行估计。
The author analyzes the principle and application of the technologies of smart antenna, power controlling and intelligent receiving respectively in the CDMA system.
着重阐述了智能天线、智能功率控制和智能接收技术在CDMA系统中的原理与应用。
The author analyzes the principle and application of the technologies of smart antenna, power controlling and intelligent receiving respectively in the CDMA system.
着重阐述了智能天线、智能功率控制和智能接收技术在CDMA系统中的原理与应用。
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