提出了一种简单有效的信道RMS时延扩展的估计方法。
A simple but effective RMS delay spread estimation method is also presented.
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最后给出了一种信道响应及RMS时延扩展联合估计的简单方法。
Finally, the joint estimation of channel response and RMS delay spread is discussed.
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提出了基于平行因子分析的大时延扩展CDM A信道下空时多用户检测算法。
Parallel factor analysis based space-time multiuser detection algorithm for CDMA systems with larger delay spread is presented.
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常用的最大似然序列估计（MLSE）均衡器采用维特比算法（VA），它只能用于具有较小时延扩展的信道。
The Maximum Likelihood Sequence Estimation (MLSE) using the Viterbi Algorithm (VA) is commonly recommended for the equalization, which can only accommodate the channels with limited time delay spread.
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研究了MIMOOFDM系统中最小描述长度（MDL）凖则在均方根时延扩展估计中的应用。
This paper studies the application of minimum description length (MDL) criterion for estimating root-mean-squared (RMS) delay spread (RDS) for MIMO OFDM systems.
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分析了RMS时延扩展估计误差对于保护间隔长度选定的影响，并给出仿真结果。
The effects, caused by RMS delay spread estimation, on choosing the right guard interval length is also discussed. Simulation results are given as well.
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实验结果表明，TR在减小多径时延扩展、提高信噪比、降低码间干扰等方面性能显著。
The results show that TR exhibit improved performance in compressing delay spread, improving signal-to-noise, and reducing inter-symbol interference.
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减小室内传播时延扩展对提高室内无线通信系统的性能有重要意义。
Mitigation of indoor propagation delay spread has far-reaching meaning in wireless communication.
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由于符号持续时间的加长，因而它对多径时延扩展有较强的抵抗力，是对高速数据传输的一种潜在的解决方案。
OFDM has a strong resistance to multipath time delay and hence is a potential solution scheme for high-rate data transmission, since the symbol duration time in it is increased.
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充分考虑了时延扩展，到达角，角度扩展，角度功率谱，多普勒效应等空域时域关键参数，并给出了仿真结果，对于研究矢量信道特性有重要意义。
Many critical channel parameters such as time dispersion, direction of arrival, azimuth spread, and power azimuth spectrum and Doppler effect are fully considered in this paper.
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由于符号持续时间的加长，因而它对多径时延扩展有较强的抵抗力，是对高速数据传输的一种潜在的解决方案。
In the empty rectangular straight tunnel, the influence to the propagation loss and RMS time delay spread of the radio wave is investigated.
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在时域，信道的冲激响应表现出时延扩展。
In the time domain, the impulse response shows a delay spread.
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得到了典型微区环境下的传播损耗、时延扩展和角度扩散等主要信道特性的描述。
After the study of simulation, the author got some descriptions of the major characteristics of the wireless channel in micro-cell environment.
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同其它CDMA系统一样，TDDCDMA系统在无线传输中仍然存在着多径衰落、时延扩展、远近效应、多址干扰等问题，直接影响了系统的容量和服务质量。
But in TDD-CDMA system, there are many problems to solve including multipath fading, perspective effect, multiple access interference which influence its capacity and quality of service.
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研究了MIMOOFDM系统中最小描述长度（MDL）准则在均方根时延扩展估计中的应用。
This paper studies the application of minimum description length (MDL) criterion for estimating root-mean-squared (RMS) delay spread (RDS) for MIMO OFDM systems.
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在较高的信号传输速率下，传输符号的符号周期小于信道的时延扩展，从而产生ISI。
When the data rate is high, there is ISI because the signal duration is shorter than the channel delay spread.
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本文给出了一种适用于GSM系统的部分连接神经网络均衡器，其复杂度与信道的时延扩展成正比，特别适用于具有较大时延扩展的恶劣信道。
This paper presents a partially connected neural equalizer for the GSM system, in which the complexity is linearly proportional to the time delay spread.
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结果表明，隧道中信号传输的时延扩展和信号的衰减均与载波频率有关。
Simulation results showed that, with the same roughness of a tunnel, both the delay spread and the signal attenuation varied with the carrier frequency.
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提出了一种改进的适用于高速相干通信长时延扩展稀疏信道的自适应判决反馈均衡器（DFE）。
In our opinion, conventional adaptive DFE needs to be and can be improved so as to exploit fully the long sparse wireless channels in high-speed digital communication.
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具有仿真语义时延和组织扩展信息的多智能体仿真模型与仿真策略。
Multi-agent based simulation kernel model with semantic duration and organization information extension.
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分析表明HBVC在可扩展性、网络时延、系统最大吞吐率、对流量工程的支持、兼容性、系统实现复杂性等方面均优于CRAM。
Analysis shows HBVC is superior to CRAM in many aspects, such as expandability, network delay, maximum system throughput, support to traffic engineering, compatibility and implementation complexity.
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该算法基于MPH算法的基本思想进行扩展，在满足时延限制条件和多播树代价增加最小的基础上，逐步将目的节点添加到多播树上。
This algorithm was based on MPH algorithm. It added the destination node to the tree step by step based on satisfying the delay constraint and increasing the multicast tree cost least.
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GO/CSMA可进一步扩展为对网络的其它多个性能（时延、丢包率、能耗、公平性）进行折衷的博弈优化。
By extension, GO/CSMA might be used to play games and gain compromise among networks performances, such as delay, packet drop, power exhaust and fairness.
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现有P2P-SIP架构提高了SIP网络的可靠性和可扩展性，但是要付出增加呼叫建立时延的代价。
Existing P2P-SIP architectures improve the reliability and scalability of SIP network, which comes at the cost of increased call setup latency.
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支持服务质量的组播路由的一个主要问题是算法复杂，结点加入时延大，路由的控制信令负担高，可扩展性差，难以适应有动态成员的大型群组。
Common QoS-aware dynamic multicast routing algorithms have the same problems such as complexity, long joining latency for new members, heavy control message overhead, which cause the poor scalability.
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为了减小基于MPLS的移动IP网络的信令开销、切换时延和切换丢包，人们提出了一种称为LSP扩展的移动性管理机制。
An LSP extension mechanism is proposed to decrease the signaling overhead and handoff delay and to eliminate the packet loss in MPLS based mobile IP networks.
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本文首先对扩展LSP可能存在环路的问题作了详细分析，然后给出了一种新的LSP扩展的环路消除技术，以避免在扩展的LSP上出现环路，从而达到节省网络资源，减小分组的时延的目的。
This paper discusses this problem in detail and gives a method to avoid forming loops in extended LSP. The network resources can be saved and the packet delay can be decreased by this method.
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