The combined company was also weak in W-CDMA, the dominant 3G technology, and relied too much on CDMA, a rival standard that is less popular.
它在主导的3G技术W-CDMA（宽带分码多工存取）方面实力薄弱，而过多地依靠与之竞争的CDMA（码分多址）技术，该技术标准不及前者受欢迎。
The space-time channel estimation and multiuser detection algorithm for the uplink of multicarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel were investigated.
研究了频率选择性瑞利衰落信道中的同步MC-CDMA系统上行链路空时信道估计及多用户检测算法。
This paper investigates blind space-time interference suppression for MultiCarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel.
该文研究在频率选择性瑞利衰落信道中MC-CDMA系统的盲空时干扰抑制。
CDMA technology is widely used in LEO satellites communication because of many merits offered by CDMA system such as suppression of ingress noise, flexibility of bandwidth assignment and the security.
CDMA作为一种抗噪声强、带宽分配灵活，保密性强的传输接入方式被广泛的应用于民用、军用低轨卫星通信系统中。
In this paper, we analyse some key technology for increasing the capacity in IS-95 CDMA sys-tem, which mirror some features of CDMA digital cellular systems.
本文以IS- 95系统为例，分析了该系统在围绕提高容量方面所采用的几项关键技术，从中反映出了CD MA(码分多址)数字蜂窝系统的一些特点。
This method can satisfy demand of larger user size for approximately synchronized CDMA (AS-CDMA) system.
这种方法能满足近似同步cd MA (AS -CDMA)系统对大用户量的需求。
The system compose of power meter, micro- control unite, CDMA module, CDMA networks and computer etc.
该系统由电能表、微控制器、无线收发模块、CDMA网络和计算机等部分组成。
This article analyzed the actual cost of the CDMA terminal, discussed the problem of CDMA terminal management, put forward the measure of decreasing the CDMA terminal cost.
文章通过对中国联通现行CDMA终端财务成本的分析，探讨了其在终端运营上存在的问题，提出了降低终端成本负担的措施。
Practicality implementation wireless Orientation in CDMA network is introduced, and CDMA wireless orientation technology and the network structure of CDMA wireless orientation are analysed.
主要介绍了无线定位在CDMA网络中的具体实现方法。分析了CDMA无线定位技术及CDMA无线定位业务的网络结构。
An adaptive bit and power allocation algorithm for MC-CDMA system is proposed in this paper based on the study of MC-CDMA system and adaptive allocation technology.
在研究MC - CDMA系统和自适应比特分配技术的基础上，提出了一种适合MC - CD MA系统的自适应比特和功率分配算法。
The estimation scheme for DS-CDMA systems includes a computationally efficient and easily implemented pilot filter on CDMA forward channel.
提出了一种面向直接序列扩频（DS-CDMA）通信系统的基于导频信号的自适应信道估计方法。
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。
With the users 'gradual increase of China Unicom CDMA network, the single carrier CDMA wireless network can not meet the need for the traffic growth and types of business increase.
随着中国联通CDMA网络用户的逐渐增多，单载频的CD MA无线网络已经不能满足业务量及业务类型增加的要求。
This paper considers blind interference suppression for a space-time block coded MultiCarrier CDMA (MC-CDMA) system.
该文考虑空时分组码多载波码分多址（MC-CDMA）系统的盲干扰抑制。
Through analyzing on the features of CDMA system, this paper advance the CF-LSCMA algorithm, which guarantees the constant modulus array could be applied in CDMA system.
通过分析CDMA系统的特点，提出码滤波最小二乘恒模算法（CF-LSCMA），保证了恒模阵列能够应用于CDMA系统。
The numerical results of simulation show that the ability of MC-CDMA for wireless broadband data transmission is much better than CDMA, therefore it has a better perspective for business application.
数值仿真结果表明：多载波频率分集CDMA系统在无线宽带数据传输中性能大大优于CDMA，具有良好的应用前景。
According to the number of customers China Unicom ranks the third of telecom cooperation at present with the biggest CDMA web and the second number of CDMA user group in the world.
按用户数计算，中国联通目前是世界第三大移动运营商，拥有容量最大的CDMA网络以及世界第二大CD MA用户群。
The DS/CDMA digital mobile communication system is based on Spread-spectrum technique and CDMA technique.
扩频技术在码分多址通信中的应用产生了DS/CDMA数字蜂窝移动通信系统。
Does some research on the basic principle of CDMA, the system architecture of CDMA, and the call processing of CDMA.
介绍了CDMA的基本原理、CDMA通信系统结构以及CDMA系统通信呼叫流程。
It combines the advantages of OFDM and CDMA, and its capability of combating ISI is obviously better than that of a single-carrier CDMA for the high data rate transmission.
它结合了OFDM和CDMA的优点，在高速数据传输时，其抗符号间干扰的性能明显优于传统的单载波cdma系统。
The paper analyzes the special characteristics of CDMA technology, and a new power meter reading system based on CDMA technology is presented.
本文通过对CDMA技术独特优点的分析，提出了基于CD MA技术的远程抄表方案。
The numerical results of simulation show that the ability of MC-CDMA for wireless broadband data transmission is much better than CDMA, therefore having good perspective for business application.
数值分析结果表明：多载波cdma在无线宽带数据传输中性能大大优于CDMA，具有良好的应用前景。
This paper discusses four aspects of the iterative detection of the MC-CDMA system, including equalization, feedback, channel estimation and the density evolution analysis of the MC-CDMA system.
本文从迭代检测的均衡、反馈、信道估计和密度演进分析四个方面展开讨论。
However MAI is not the inherent problem of CDMA systems, it is because the conventional CDMA systems follow a single-user detection strategy.
然而多址干扰并不是CDMA系统的固有问题，是由传统的CD MA系统采用单用户接收策略造成的。
To apply adaptive allocation algorithm to MC-CDMA, a high efficiency MC-CDMA adaptive allocation algorithm is proposed in this thesis.
为了把自适应分配算法应用到MC - CDMA中，本文提出一种高效MC - CD MA自适应分配算法。
Moreover, FDE has been adopted as a key technique for both DS-CDMA and multi-carrier (MC -) CDMA to overcome the channel frequency-selectivity.
频域均衡作为关键技术不仅运用于DS- CDMA系统，而且也运用于多载波cdma (MC - CDMA)系统中来克服信道的频率选择性。
ZTE has won the last three bidding for Unicom's CDMA network, and they currently owns 20% of the domestic market share for CDMA equipments;
中兴在联通过去的三次CDMA网招标中连续胜出，至今已经拥有20%的国内CDMA设备份额；
This paper analyses the features of optical CDMA, comparing to optical TDMA, optical WDMA and radio CDMA.
本文介绍了光cdMA技术的特点，与光tdma、光wdma及无线CD MA技术进行了比较。
This paper introduces cause of formation of MAI in CDMA systems, and points out that Multi-user Detection (MUD) technology can improve capability and performance of CDMA through suppressing MAI.
本文介绍了多址干扰在CDMA系统中的成因，并提出通过多用户检测技术可抑制多址干扰(MAI)，从而提高CD MA系统的容量和性能。
How to improve the wireless network rate, throughput, reduce transmission delay, exert better 1X CDMA network of wireless data advantage is an important issue of CDMA network optimization.
如何提高无线网络速率、网络吞吐量、减少传输时延，更好地发挥CDMA1X网络的无线数据优势是CDMA网络优化中的一个重要课题。
应用推荐