自适应调制技术是移动宽带通信系统的核心技术之一。
Adaptive modulation technology is one of the crucial techniques for the mobile broadband systems.
在无线宽带通信系统中，信道的多径效应会严重影响通信的可靠性。
In the system of wireless broad band communication, the multi-path effect may greatly affect the reliability of the communication performance.
超宽带通信系统首先要解决的问题是降低系统的功耗和硬件的复杂度。
The main challenges for UWB communication system implementation are how to decrease energy consumption and hardware complexity.
移动台在移动过程中产生的跨区切换是无线宽带通信系统中的一个难点。
Handover is one of the most important and complex processes in wireless broadband communications.
本文给出了群变换方法构成的BCH编码在超宽带通信系统中的误码率仿真结果。
In this paper, we give the simulation results of bit error rate based on group counterchange method for BCH codes in UWB communication system in the condition of AWGN channel.
在WCDMA等宽带通信系统中，射频功率放大器记忆效应明显，传统的无记忆预失真技术无法达到理想的线性化效果。
In broadband communication systems, such as WCDMA, memory effects of RF power amplifiers (PAs) are significant and memoryless predistortion techniques cannot linearize PAs effectively.
超宽带(uwb)信号及其功率谱分布是研究超宽带通信系统与其它通信系统频谱共存与兼容问题时，需要考虑的重要因素。
UWB signals and their power spectrum mask are important factors which need to be considered when studying the spectrum coexisting and compatible problems between UWB systems and other radio systems.
在介绍一种基于TH - PPM调制方式的超宽带通信系统的基础上，深入讨论了一种并行检测接收机方案并分析了其工作原理。
On the basis of an introduction of TH-PPM UWB communication system, this paper advances a parallel detection receiver scheme.
Montpetit想联结不同的通信系统（尤其是移动和宽带服务）创造一个优质的用户体验。
Montpetit wants to unite different communication systems--especially cellular and broadband services--to create an elegant user experience.
2007年10月发射了首颗卫星宽带系统，提高了高带宽的通信能力，支持美国军事行动。
The wideband system, with its first satellite launched in October 2007, increases the high-bandwidth communications capacity available to support U.S. military operations worldwide.
宽带放大器是现代通信系统中的一种重要的放大器类型。
The broadband amplifier is an important type of amplifiers using in modern communication systems.
另外在未来宽带MIMO无线通信系统中，通常面临频率选择性衰落信道，传统高性能均衡器就会变得异常复杂。
In addition, there will be frequency selective fading in the future broadband MIMO wireless communication systems, and the traditional high-performance equalizer will become extremely complicated.
从节点设备和通道建设等方面讨论了如何组建经济、适用的电力系统宽带数字通信网。
How to construct an economic and prompt broadband digital communication network in power system is discussed in the paper.
全文的内容安排如下：首先在第一章针对研究背景作了详细的介绍，简单介绍了宽带无线通信系统和跨层优化的概念。
The thesis is arranged as follow:First chapter introduces the research background and the concept of Broadband Wireless Communication System and Cross-layer Optimization.
扩频通信系统中宽带干扰的抑制技术越来越引起人们的重视。
The rejection techniques of broadband interference have caused more and more attention in Spread Spectrum(SS) communication systems.
江苏宽带多媒体通信网上开通了基于AT M、不对称数字用户线及以太网的视频服务系统。
VOD system has also been opened on the broadband multimedia communication network in Jiangsu province based on ATM, ADSL and Ethernet.
对宽带码分多址(WCDMA)蜂窝移动通信系统中下行链路的正交可变扩频因子(OVSF)码字分配问题进行了建模分析。
The modeling and analysis of orthogonal variable spreading factor (OVSF) codes assignment in wideband code division multiple access (WCDMA) cellular communication systems are presented.
在宽带无线数字通信系统中，影响信息高速传输的最主要的一类干扰是由信道的多径效应所引起的频率选择性衰落。
The bandwidth efficiency and ability to combat the effects of frequency selective channels are critical issues in the design of wideband wireless digital communications system.
在未来的宽带无线通信系统中，存在着两个严峻的挑战：无线信道的多径衰落和频谱效率。
There are two serious challenges in the future broadband wireless communication systems: multi-path fading in the wireless channel and spectral efficiency.
第一章概述了专用宽带移动通信系统功能和结构，以及本人的主要工作。
Chapter One introduces the function and structure of broadband mobile communication system, and the author's work.
诺基亚西门子通信公司将裁员17，000人。这家网络通信商正在对网络系统进行重组，他们将把更多的精力放在宽带设施问题。
Nokia Siemens Networks said it would cut 17,000 jobs. The network-equipment maker is restructuring its business to focus more on broadband infrastructure.
下一代移动无线通信系统的目标是实现无所不在的、高质量的、高速率的宽带多媒体通信。
The next generation wireless mobile communication system is expected to provide ubiquitous, high-quality, and high-rate mobile multimedia transmission.
提供了一种在宽带无线通信系统中压缩首标的发送装置和方法。
A transmission apparatus and method for compressing headers in a broadband wireless communication system are provided.
以太无源光网络（EPON）即将成为宽带接入的最有效的通信方法，为EPON系统提供一个稳定、有效的网络管理系统显得尤为重要。
The Ethernet Passive Optical Network(EPON) will be the most effective method for Access Network. It is important to provide a stable and effective Network Management System for EPON.
无线异步传输模式(atm)网络通信系统将在宽带和多媒体个人通信得到广泛应用。
Wireless Asynchronous Transfer Mode (ATM) network communication system will be applied widely in broad band and multimedia personal communication.
随着宽带无线接入技术的广泛应用，通信系统之间以及通信基站内部的电磁干扰（EMI）现象越来越严重。
With wide application of broadband wireless access technology, the EMI phenomenon is more and more serious among communication systems and inner communication base station.
正交频分复用技术以其多种优势成为低压电力线宽带通信的最佳选择，信道估计是正交频分复用系统的关键问题之一。
Due to many advantages of Orthogonal Frequency Division Multiplexing technique, it becomes the best choice for low-voltage power line broadband communication.
基于频率不变思想，提出一种适用于宽带无线通信系统下的，新的宽带自适应天线阵列。
Based on the idea of frequency invariant, a wideband adaptive antenna array is proposed for wideband wireless communication system.
提出了一种适用于宽带无线通信系统的上行无线带宽资源分配方案。
A new uplink bandwidth resource allocation scheme in broadband systems is proposed.
针对宽带无线通信系统对高可靠性和高速率数据传输的要求，本文介绍了一种基于LDPC码的MIMO - OFDM宽带无线通信系统模型。
Aiming at the requirement for reliability and very high data rate transmission for broadband wireless communication, a LDPC coded MIMO-OFDM system model was proposed.
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