时延抖动
- 网络Delay jitter;Delay Variation
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在提供IP电话服务时,时延抖动是一个重要的QoS参数。
Jitter is an important parameter of VoIP QoS .
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时延抖动参数是网络QoS的一个重要指标。
Jitter is an important specification of the network QoS .
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ATM交换机时延抖动仿真中的队列模型
Queue Model in Jitter Simulation of ATM Switch
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VoIP系统中消除时延抖动的研究与实现
Research on and Implementation of Jitter Elimination in the VoIP System
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结果表明,JitterEDF调度算法能够将时延抖动的幅度平均降低到30%~40%,有效保证了实时性应用对时延抖动的要求。
Numerical results show that Jitter-EDF scheduling algorithm can strictly guarantee the requirements of delay jitter for real-time applications .
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此外,论文还在实测系统的丢包率、发送接收延时、时延抖动等各种数据基础上,在理论上从空间域质量损失和时间域质量损失等方面分析了影响系统图像Qos质量的原因。
Thirdly , through gather dates of system , I analysis the reasons that diminish the system quality form space domain quality loss and time domain quality in theory .
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本文进行了相应的系统仿真,发现采用我们设计的调度方案后,VBR业务的延迟时间和时延抖动都大大降低。
Simulation work shows that both delay and jitter of VBR flows are reduced considerably when using the proposed scheme .
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然后,通过对目前卫星网络常用的基于离散化状态时延抖动性能的分析,提出多层卫星网络动态QoS路由切换保证的基本策略和稳定性拓扑结构分群设计的可行性。
According to the analysis of discrete model and delay jitter of the satellite network , the switch strategies of QoS routing and feasibility of stable topological structure of hierachical satellite network is analyzed .
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提出了一种嵌入式Linux平台下RTP/RTCP协议栈的设计模型与实现方案,并且详细论述了解决网络时延抖动的JitterBuffer机制。
And then it discusses the Jitter Buffer mechanism in detail , which can solve the jitter and delay problems in the network . Finally it presents a design model and implementation of RTP / RTCP protocol stack under embedded Linux environment .
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仿真实验表明:二进制流量控制中的滑模变结构算法大幅度地抑制了ACR和队列的振荡,平滑了由此而引入的时延抖动,为实现ATM网络中的服务质量提供了可靠的实现机制。
The simulation results show that the sliding mode variable structure controller greatly constrains the oscillations of ACR and queue , smoothes the delay jitter , which provides the reliable implementation mechanism for QoS guarantee in ATM network .
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接着,根据不同的最大分段长度(MFS)对视频数据打包,分析其对音频分组和视频分组的时延抖动影响;
Furthermore , we packet the video data according to the maximum fragment size ( MFS ), and analyze its effect on the jitter of audio-packet and video-packet respectively .
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本文提供了有关带宽、端到端时延、切换潜伏期、丢包数以及时延抖动的性能表征结果,并探讨了UMTS下的同频干扰和有无干扰下的性能区别。
The results with respect to bandwidth , end-to-end delay , handoff latency , packet loss and delay jitter are presented to provide thorough investigation of UMTS . Additionally , we discuss the impact of co-channel interference and compare the performance in the situation with and without interference .
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用遗传算法解带时延及时延抖动约束的组播路由优化问题
A Genetic Algorithm for the Multicast Routing Optimization Problem with Delay and Delay-Variation Constraints
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利用往返时延抖动的网络拓扑推断算法
A Topology Inference Algorithm Using Round Delay Variation
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时延抖动是影响多媒体信息连续播放质量的重要因素。
In multimedia systems end to end delay jitter often leads to the discontinuity of information playback .
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偏振模色散和时延抖动对啁啾光纤光栅色散补偿特性的影响
Influence of Polarization Mode Dispersion and Group Time Delay Ripple on Dispersion Compensation by Chirped Fiber Grating
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为了降低时延抖动,结合我们提出的两个算法,实现了数据缓冲策略。
To decrease delay jittering , a data buffer scheme is achieved with the two proposed algorithms .
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简要介绍了时延抖动的概念,分析了消除网络时延抖动的方法,并提出了一种新的自适应抖动缓冲控制算法。
The concept of jitter is briefly introduced , and the methods for eliminating the jitter are analyzed .
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特别地,语音业务对时延抖动敏感,指出了影响其抖动性能的主要因素。
Especially , voice traffic is sensitive to delay jitter and here we point out the main influencing factors .
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在第四章提出一种新的算法,针对不同优先级的业务分别进行公平高效的带宽分配,优化了周期间空闲损失、时延抖动和公平性。
In the fourth chapter , I propose a new algorithm for different priority services were fair and efficient bandwidth allocation .
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为了降低时延抖动,提出了新的网络时延管理算法,并分析了时延缓冲器原理。
To decrease delay jittering , a novel algorithm of network delay regulator is achieved together with its analysis of principle .
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该算法通过动态调整抖动缓冲的大小来消除时延抖动。
A novel adaptive jitter buffering control algorithm is proposed to reduce jitter by adjusting the size of jitter buffer dynamically .
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仿真结果表明,该算法的带宽利用率高,业务时延抖动低,并且在低负载时无轻载惩罚现象。
Simulation results of OPNET show that the improved algorithm has higher bandwidth utilization , lower service delay , and no light-load penalty .
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提出了利用平均速率、时延抖动和辅助系数η这三个参数进行缓冲区长度估算的简化算法;
The simplified method of estimating buffer length was proposed with the help of mean transmission rate , delay jitter , assistant parameter .
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在对有效带宽预测、时延抖动、丢包率等全面分析的基础上建立了全局速率控制模型。
Furthermore , a global rate control model is built on the general analysis of available bandwidth prediction , delay jitter and package loss rate etc.
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该算法在满足带宽、延时、时延抖动和包丢失率的条件下,可寻找花费最小的路径。
This algorithm can find a path with the least cost in condition of satisfying bandwidth , delay , delay jitter and package loss constrained .
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文中分析了时延抖动的统计特性,它近似于高斯分布,在此基础上提出了一种缓冲区的设计方法。
Based on the statistical analysis of the delay jitter that is near Gaussian distribution , the paper presents a method for designing a compensation buffer .
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多径衰落以及用户的移动性使得移动信道不可避免地表现出较高的误码率、较大的数据传输时延及时延抖动以及不时的传输中断。
Higher bit error rate , bigger data transmission delay and more disconnections of wireless links would be caused by multi-path fading , co-channel interferences , host mobility .
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该控制器的参数由用户设定的优化目标而定,如高链路利用率、低时延抖动、高吞吐量等。
The parameters of the optimization controller depend on optimization goals set by users . They can choose high utilization , low jitter , high throughput and so on .
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针对单输入单输出和多输入多输出网络控制系统中存在的时延抖动和时延偏移问题,提出了在控制器和执行器前设置缓冲区的方法。
For the problems of delay jitter and delay skew consisting in SISO and MIMO networked control systems , the method of setting buffers before controller and action is bring forward .