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分组丢失     
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  packet loss
     Simulation results show that FHMM is effective with low packet loss rate, high multicast packet delivery efficiency and little multicast maintenance overhead.
     模拟结果显示,FHMM具有分组丢失率低、组播分组传送效率高以及组播维护开销少等优点,是一种高效的移动组播解决方案.
短句来源
     The NS-2,a network simulation software,was used to create a fairly complicated Mobile IPv6 network environment for observing the impact of the route optimization on some typical Mobile IPv6 network performance parameters,such as handoff latency,packet loss and end-to-end delay.
     为了观察路由优化对网络性能产生的影响,采用NS-2网络模拟软件创建了较为复杂的移动IPv6网络环境,通过切换延时、分组丢失、端到端延时等典型的移动IPv6网络性能参数影响实验,经过对仿真结果的分析,提出了一个切换延时和分组丢失的计算公式,并指出,路由优化可能会导致增加切换延时和分组丢失
短句来源
     Study for Packet Loss Resilience of H.264 Video Communication
     基于H.264视频通信抗分组丢失技术的研究
短句来源
     A queueing system GI~\{X\}/M/1/N with randomly dropping packets mechanism is discussed by means of thinning of recurrent flows. In addition, the packet loss rate, the system utility, the mean and variance of queue length, and the average waiting time is given.
     利用排队论中输入流稀疏化的方法,在标准的GIX/M/1/N排队系统中嵌入网络交换设备随机丢弃分组的机制,建立了一个具有随机丢弃分组机制的扩充的GIX/M/1/N排队系统,并讨论了该排队系统的分组丢失率、系统利用率、队列长度的均值/方差、平均等待时间等性能评价指标.
短句来源
     Simulation shows that with the appropriate setting, our port modularized scheduling policy can remarkably reduce packet loss rate.
     本文对端口模块化的调度策略进行了仿真分析,仿真显示:通过设置合理的参数,端口模块化的调度可以有效地降低光突发交换网络的分组丢失率。
短句来源
更多       
  packet-loss
     Study of Packet-loss Resilience Algorithms for Video Communication Based H.264/AVC
     基于H.264/AVC视频通信抗分组丢失算法的研究
短句来源
     A Packet-loss Resilience Video Communication System Based on H.264
     基于H.264的具有抗分组丢失能力的视频通信系统
短句来源
     For the need of real-time video communications over IP (Internet Protocol) network,a packet-loss resilience video communication system (PRVCS) is proposed.
     针对IP网络环境下实时视频通信的需要,提出了具有抗分组丢失能力的视频通信系统(PRVCS)。
短句来源
     Second,a network speech communication system for preventing packet-loss was given basedon AMR.
     然后,提出一种基于 AMR 的抗分组丢失的网络语音传输系统。
短句来源
     However, the packet-loss by the practical IP channel may lead to a substantial reduction in the reconstructed images quality,and the error may also have a bad effect on the following reconstructed images.
     然而由于实际IP信道会导致分组丢失,造成恢复图像质量严重下降,而且误码扩散还会影响后续解码图像质量。
短句来源
更多       
  packet loss resilience
     Study for Packet Loss Resilience of H.264 Video Communication
     基于H.264视频通信抗分组丢失技术的研究
短句来源
     Object based H.264 video coding for packet loss resilience
     基于对象的H.264视频编码抗分组丢失方法
短句来源
     Research on Packet Loss Resilience for MPEG-4 Video Conferencing
     MPEG-4视频会议中的抗分组丢失研究
短句来源
     But in the IP based network, besides the video encoding technology, the packet loss also seriously influences the quality of reconstructed pictures. The aim of this paper is to make the research on packet loss resilience.
     IP网络中的数据分组丢失会影响压缩在解码端得到的恢复图像的质量,因此对于IP网络的多媒体通信,除了视频编码技术,IP网络中的抗分组丢失技术是影响和提高恢复视频质量的关键技术,论文重点研究IP视频通信中的抗分组丢失技术。
短句来源
     This paper deals with the technique of packet loss resilience for H.264 video communication.
     本文对基于H.264视频通信抗分组丢失技术进行了研究。
短句来源
更多       
  packet drops
     Identification of No-TCP Flows Based onthe History of RED Packet Drops
     基于RED分组丢失历史方法的非TCP流鉴别
短句来源
     As an important module in high-speed router, active queue management (AQM) gets more and more recognitions in recent years. Implement of AQM sheme in high speed router is in order to provide small packet drops, high link utilization and low queue delay, which combines with TCP end-to-end c ongestion control being the main approach to solve the problem of Internet congestion control at present.
     作为高速路由器的一个重要模块,主动队列管理(Active Queue Management,AQM)近年来受到越来越多的重视,在高速路由器中实施AQM策略是为了提供小的分组丢失、高的链路利用率以及低的队列延时,它与TCP端到端的拥塞控制相结合,是解决目前Internet拥塞控制问题的一个主要途径。
短句来源
     In OBS network, IP packets destined to a common egress router are converged into a basic unit for transmission and switching -- data bursts (DB), at the network edge and then routed as a single unit. IP packet drops produced as a result of data burst drops can significantly affect performance of the transmission layer.
     在OBS网络中,送往同一边缘节点的IP分组汇聚成传输和交换的基本单元———数据突发(DB),DB丢弃会导致大量IP分组丢失,显著影响传输层的性能。
短句来源
     Many researches have shown that TCP performance in ad hoc networks is extremely poor, because the congestion control mechanism of TCP cannot effectively deal with the problem of packet drops caused by the shared channel contention.
     大量研究表明AdHoc网络中TCP的性能非常差,这主要是由于TCP的拥塞控制机制不能有效地解决由共享信道竞争造成的分组丢失问题。
短句来源
     Currently there are many handover mechanisms for mobile IPv6 to reduce packet drops.
     目前,很多移动IP切换的机制都是为了减少移动主机在切换过程中的分组丢失,做到了无缝切换。
短句来源

 

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  packet loss
Moreover, the scheme can effectively solve the problem of data packet loss or timeout.
      
Results indicate that the packet loss ratio in HOBS is much less than that in optical burst switching(OBS) and its performance depends on some parameters such as the packet proportion, the electronic buffer size and the processing speed in the node.
      
Also, we obtain the packet loss probability and non-saturation throughput.
      
A new congestion control scheme of internetworks is presented which uses acknowledgement time-outs and the feedback signal from gateway as indications of packet loss and congestion.
      
After the performances are analyzed, the fairness and packet loss rate of the algorithm are simulated.
      
更多          
  packet-loss
Organizing multicast receivers deterministically by packet-loss correlation
      
Results of measurements carried out over the Collaborative Advanced Internet Research Network illustrate the fact that tracing multicast paths is an effective tool to organize receivers based on their packet-loss correlation.
      
Network Traffic Modeling and Packet-Loss Probability Approximation
      
The new asymptotic upper and lower bounds to the buffer-overflow and packet-loss probabilities P are obtained.
      
From numerical results, we demonstrate that the impact of TORE on the performance is not negligible for high packet-loss probabilities.
      
更多          
  packet loss resilience
Based on the error-propagation analysis in a group of pictures (GOP), we propose an unequal Forced-Intra-Refresh (FIR) scheme to improve packet loss resilience of video streaming.
      
  packet drops
The simulation results show that the TCRP can reduce packet drops and increase network throughput in any size network topology.
      
Wireless local area networks suffer from frequent bit-errors that result in Medium Access Control (MAC) layer packet drops.
      
Assuming its low complexity and narrow-band operation, SRSA can be an ideal sensor MAC protocol for applications that can tolerate relatively larger delivery latency but not frequent packet drops.
      
SMPT stabilizes the wireless link by transmitting multiple packets on multiple CDMA channels in parallel in response to packet drops due to wireless link errors.
      
AECN has fewer packet drops and alleviates the lockout phenomenon and yields higher goodput than ECN.
      
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