In this thesis, we adopt the bandwidth-efficient OFDM system, which can adjust efficiency of bandwidth usage.
在本论文中，我们采用高频宽效率的正交分频多工调变系统。
For the most part, you don't want to optimize for speed, or bandwidth utilization, or any other type of efficiency — but for something more nebulous: user satisfaction.
在大多数情况下，优化的目标并不是速度、带宽利用率或者其他效率指标，而是更模糊的目标：用户满意度。
At high input impedances, in practice both efficiency and bandwidth of a transformer will reduce.
实际上高输入阻抗的变压器，它们的效率和频带宽度都会下降。
The prediction strategy replicates the data in the local nodes before data access, it optimizes the efficiency of data access by utilizing the unoccupied bandwidth of the networks.
数据访问预测算法通过在网络空闲时，提前将需要访问的数据复制到本地，利用网络的空闲带宽减少远程数据访问延迟来提高数据访问效率。
Dynamic bandwidth management is implemented successfully in MPD software package and the total efficiency of system improves greatly.
动态带宽管理在MPD软件包中的成功实现，极大地提高了系统的整体效率。
The factors which influence holography diffraction efficiency, the Angle selectivity of volume holography and wavelength bandwidth are analyzed with the coupled wave theory.
利用耦合波理论分析了影响体积全息图的衍射效率的因素、体积全息图的角度选择性以及波长带宽等方面。
To increase the radiation efficiency and broaden the operation bandwidth, an aperture-coupled microstrip antenna of high temperature superconductor with multi-layer substrates is designed.
为提高辐射效率和扩展工作带宽，对一种口径耦合馈电的多层介质高温超导微带天线进行了设计。
The characteristics of the dye laser, such as bandwidth, output power, efficiency, pulse duration, tuning range, spectral purity and frequency stability etc, are measured in details.
详细测量了染料激光的性能，如线宽、功率、效率、脉宽、调谐范围、光谱纯度和光束质量等。
The characteristics of FEM amplifier with elliptical guide, such as the evolutin of power, efficiency and bandwidth, are analyzed. These results are useful to design FEM devices.
利用该程序研究了椭圆波导FEM放大器的输出功率、效率、带宽等高频特性，并对不同椭圆度的椭圆波导FEM放大器的性能进行了计算、对比分析。
The advantage of adaptive equalization over coding and spread spectrum is that a modem with adaptive equalization provides high data rates without any loss in bandwidth efficiency.
长处 得当的均等太过编码和传布光谱是和得当的均等一个调制解调器提供高度没有带宽效率的任何失败，数据评估。
The system bandwidth efficiency and the dispersive of wireless channel are the big challenges for the wireless mobile communication system.
对于无线移动通信系统来说，面临着系统带宽效率和多径衰落信道等诸多问题的挑战。
Some problems in realizing the "high bandwidth, low latency" of interconnection system are solved to increase the interconnection communication ability and efficiency.
本文重点研究高性能计算机“高带宽、低延迟”互连系统技术，以支持高性能计算机系统计算能力和效率的更好发挥。
In wireless optical code multiple access (W-OCDMA) network, Media access Control (MAC) is a key issue, which determines network performance, bandwidth efficiency, complexity and cost of terminal.
无线光码分多址(W -OCDMA)接入网中，数据链路层的媒质接入控制技术(MAC)至关重要，它直接影响网络的性能、带宽利用效率、终端设备的复杂度和成本。
This protocol not only allocates upstream bandwidth dynamically, but also has the consistency of traffic management, high bandwidth efficiency and low cell delay.
本方案不仅能够灵活动态地分配用户上行接入的带宽，还具有统一的业务流管理、高带宽利用率和低信元时延等优点。
Total users and spectral efficiency are studied under different proportion of total available bandwidth that is allocated to OCDMA and WDMA.
当可用带宽在WDMA与OCDMA之间不同的分配情况下，研究了该混合系统的总用户数和频谱效率。
The invention discloses an image filtering process method, which solves the problem of low bandwidth efficiency of an external memory during image scaling.
本发明披露了一种图像滤波处理方法，解决了图像缩放过程中外部存储器的带宽效率低的情况。
Multicast is an effective way to reduce network bandwidth consumption and increase data transmission efficiency of communication which in such applications has been widely used.
组播是一种可以有效减轻对网络带宽的消耗，提高数据传输效率的通信方式，因而在这类业务中得到了广泛的应用。
The experimental results show that this searching algorithm is effective in reducing consumption of network bandwidth, and can significantly improve the searching efficiency.
模拟实验表明，该算法能够有效减少网络带宽消耗并能显著提升P 2 P网络的查找效率。
IMA spreads out digital data cell by cell, optimizing the efficiency with which available bandwidth is utilized and preventing the occurrence of bottlenecks in a network.
IMA扩散数字数据细胞通过细胞，优化可用带宽利用的效率和防止网络瓶颈的发生。
The basis of ATM technology is a high-efficiency, low-latency switching and multiplexing mechanism ideally suited to an environment in which there are specific bandwidth limitations.
AT M技术的基础是一种高效、低延迟的交换和多路复用机制，非常适合有具体的带宽限定的环境使用。
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。
Materials with light amplification is a main part of light amplifier, which determine the power efficiency and flat gain bandwidth of light amplifier.
光放大材料是光放大器的重要组成部分，它决定光放大器的光放大功率及平坦增益带宽。
The process method of the invention can save bandwidth of an external memory and improve bandwidth efficiency of the external memory.
本处理方法节省了外部存储器的带宽，提高了外部存储器的带宽效率。
Thus pulse shaping technique can be used not only shape the spectrum of the transmitted signal to increase the bandwidth efficiency but also to reduce its PAPR.
因此脉冲成形技术不仅能对传输信号进行频谱成形来提高系统的频带利用率，而且还可以减小信号的PAPR值。
Bandwidth usage efficiency and transmission latency are two important issues to evaluate the performance of the next generation network.
带宽利用率和传输延迟是评价下一代网络性能的两个重要指标。
Orthogonal frequency division multiplex (OFDM) is suitable for Broadband-satellite mobile communication system with the advantage of robustness to muti-path and high bandwidth efficiency.
正交频分复用(OFDM)技术具有抗多径衰落，频谱利用率高等优点，适合于在宽带卫星通信这种无线环境下进行高速传输。
The intermediate node load algorithm evaluates the load efficiency of the intermediate nodes according to bandwidth and computing ability.
中继点负载评估理论是以频宽以及运算能力来评估一个中继点的负载能力及效率。
Performance comparison of space time trellis codes and space time transmit diversity is carried out under the same bandwidth efficiency in this paper.
本文在相同频带利用率下将空时格码与空时发射分集的性能进行了比较。
Lastly, the performance of the scheme is given in terms of the asymptotic coding gain as well as bandwidth efficiency.
最后从编码增益和频带有效性角度对该方案的性能作了评价。
This paper describes several system structures with multiple antennas and analyzes their performances from the viewpoint of bit error rate and bandwidth efficiency .
本文介绍了具有多个天线系统的几种不同构成方式，从系统误码率和频带利用率两个方面讨论了不同构成方式对系统的改善。
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