3g和宽带无线通信系统及部件的关键要求。
The key of 3g and broadband wireless communication system and component requirements.
本文介绍了一种宽带无线通信系统(BWCS)。
This paper introduces a broadband wireless communication system (BWCS).
MIMO／OFDM是未来宽带无线通信接口的有效架构。
MIMO/OFDM is an effective architecture for future wireless communication systems.
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.
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.
近年来，随着市场需求和技术驱动，宽带无线通信成为当前的研究热点。
In recent years, driven by the market demands and emerging technologies, wideband wireless communication techniques are becoming hot research subjects.
在宽带无线通信中，多径引起的符号间干扰严重影响了通信系统的性能。
In broadband wireless communication, ISI caused by multi-path affect the performance of the communication system seriously.
正交频分复用(OFDM)技术是未来宽带无线通信中最流行的技术之一。
Orthogonal frequency division multiplex (OFDM) is currently one of the most popular techniques for future broadband wireless communications.
正交频分复用(OFDM)技术已经广泛应用于各种高速宽带无线通信系统中。
OFDM technology has been used in various high speed wide bandwidth wireless system.
因此MIMO技术与OFDM技术的结合已经成为宽带无线通信系统的重要技术。
Therefore, the combination of MIMO and OFDM has been the important technique of wideband wireless communication system.
所以设计的跳时序列的相关性能优劣会直接影响到整个超宽带无线通信系统的好坏。
Therefore, the time-hopping sequences 'properties of the pros and cons directly affect the entire ultra-wideband wireless communication systems.
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.
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.
目前，国内外使用的超宽带无线通信的信息处理与传输协议主要集中在CCSDS协议簇中。
At present, the beyond wideband wireless communicating information process and transmission protocol used in or abroad are focused on the CCSDS protocol family.
因此，OFDM和MIMO技术的结合已经成为未来宽带无线通信领域最有吸引力的候选方案。
Therefore, the combination of MIMO and OFDM is an attractive and competitive solution for future broadband wireless systems.
作为宽带无线通信系统的代表，802.16E系统采用了OFDM技术作为其物理层基础。
The 802.16e standard, representative of broadBand wireless system, chooses OFDM as its PHY layer framework.
针对宽带无线通信要求，提出了一种基于半带滤波器和CIC滤波器级联的上采样滤波器组实现方案。
A solution to implementation of digital interpolation filter for wireless communication system was presented based on half-band and CIC filters.
目前，宽带无线通信受到人们的广泛关注，OFDM和SC - FDE是宽带无线通信物理层两种有效传输技术。
Broadband wireless communication technology has been drawing great attention recent years. OFDM and SC-FDE are two kinds of promising transmission techniques on physical layer.
自由空间光通信结合了光纤通信和微波通信的优势，已成为一种新兴的宽带无线通信方式，受到了人们的广泛关注。
Free space optical communication has the advantages of both fiber communication and microwave communication, and now it is a new broadband communications which arouses great interests of people.
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.
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.
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.
超宽带技术是目前无线通信中非常有发展前途的技术。
Ultra Wide Band technology is a very attractive technology of wireless communication.
OFDM技术将成为未来无线通信中的核心技术，在认知无线电、4G移动通信和无线宽带接入等领域得到广泛的应用。
OFDM technology will become the core technology for wireless communication in the future, OFDM will be widely used in cognition radio, in the 4G mobile communication and the wireless broadband access.
自由空间光通信已经成为一种可行的、宽带宽的无线通信方式。
Free Space Optics (FSO) has become a viable, high bandwidth wireless alternative to fiber optic cabling.
未来无线通信网络的两个最重要的研究问题就是宽带和无缝漫游，而移动性管理是实现网络间无缝漫游的关键难题之一。
The terms broadband and seamless are the main keywords for future wireless communication systems and the mobility management is the most important problem in seamless roaming across systems.
本文主要论述350兆宽带扩频无线通信网络的构成、技术特点、达到的主要技术指标。
This thesis discusses the structure, technical characteristic and main technical index to achieve the 350MHz broadband expanded frequency for wireless communication net.
超宽带是高速无线通信的新技术，然而其较大的带宽会落入GPS频带范围内，造成对GPS信号的干扰。
Ultrawideband is a new technology in high speed wireless communication, but the band′s width will fall into the frequence range of GPS, cause interference to GPS signal.
无论军用和民用，宽带射频技术在无线通信中都占据着日益重要的位置。
Both military and civilian, broadband RF technology in wireless communications in both occupy an increasingly important position.
红外无线数字通信技术与其它无线通信方式相比有宽带、高速、安全性高等特点。
Compared with other wireless communication technologies, it features wide bandwidth, high speed and security.
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