本发明公开了一种监测网络丢包率的方法及系统。
The invention discloses a method and a system for monitoring the packet loss rate of a network.
针对传输，提出的打包算法用于有效降低丢包率。
For transmission, an effective packetization algorithm is designed to minimize packet loss damage.
而抗丢包技术的目的是避免网络拥塞，减少丢包率。
And the aim of packet loss prevention was to prevent network congestion in order to reduce the packet loss rate.
随着不确定因子的减小，优化路由下整个网络的丢包率就越小。
With the uncertainty factor decreases, the optimal routing method has less packet loss probability.
提出了能有效预防网络拥塞，减少丢包率的数据包队列管理算法。
Offering the data packet queue management arithmetic to prevent the network congestion.
相对于传统AMC策略，所提跨层设计可以显著降低系统总丢包率。
Simulation results show the great decreasing of the system PLR compared with the traditional AMC scheme.
该协议不仅可以减少能量消耗和通信时间，而且可以有效地降低丢包率。
The protocol not only can reduce the energy and the communicating time, but also effectively decrease the rate of the package loss.
提出了一种新的基于网络丢包率的动态自适应的主动队列管理的改进算法。
A new dynamic adaptive AQM (Active Queue Management) scheme based on network loss ratio is proposed.
这些研究成果为实现网络的高吞吐率、低丢包率、短时延做出了重要的贡献。
These schemes help the network to achieve high throughput, low drop rate and short end to end delay.
FGS视频率失真和平均丢包率的关系模型，最优FEC数据分配算法的设计。
A relationship model of FGS video rate-distortion and average packet loss ratio was established, the optimal FEC data allocation algorithm was designed.
该算法包括首发视频选择算法，丢包率预测算法，以及自适应视频码率调整算法。
The algorithms, including the choice of the first video algorithm, packet loss rate prediction algorithm, as well as video rate adaptive adjustment algorithm.
同时，协议设计应尽量降低系统丢包率，丢包率将是衡量该协议好坏的重要指标。
At the same time, the protocol should be designed to minimize the system packet loss rate, packet loss rate is an important measurement of the communication protocol.
实验结果表明，该通信协议下，传感节点具有较小的能耗，系统具有较低的丢包率。
The experimental results show that under this communication protocol, the sensor node has a small energy consumption and the system has a low packet loss rate.
该网络性能参数分析通过对连接性、延迟、丢包率、带宽、流量参数等方面的研究实现。
Analysis of network performance measurement is implemented with researching parameters such as connection, delay, packet loss ratio, bandwidth, flux etc.
不断增加的UDP数据流恶化了TCP控制拥塞的能力，而且是引起高丢包率的原因之一。
Increasing UDP deteriorates the ability of TCP to control congestion and is a source of high drop rates.
然而，流媒体业务是一种宽带业务，对于网络带宽、抖动、延迟和丢包率都有较高的要求。
However, as a kind of broadband service, streaming media service has strict requirement for network bandwidth, jitter, delay, and loss tolerance.
由已经得到的公式，可以确定将平均时延及丢包率控制在所允许的范围的服务率和服务台数。
Based on the formula, we can determine the cell service ratio and the number of the servers which curbs the average cell delay and the cell loss ratio in the permissive range.
实验结果表明，改进的模式匹配算法，更适合于网络级入侵检测的实现，减少了系统的丢包率。
Experimental data showed the improved pattern matching algorithm is better adapted to invasion detection on the network level, thus reducing systematical missing package rate.
高清视频应用的丢包率与网络层丢包率的统计曲线模态正相关，但相关系数仅在0.83左右。
The statistic curve of HDV system packet loss rate positively correlates to the curve of network layer, but the correlation coefficient is only about 0.83.
相关研究表明：在多数情况下，动态变化的网络带宽和丢包率是影响视频流化质量的关键因素。
Some related studies have demonstrated that in many cases, the fluctuation of network bandwidth and packet loss rate are two key factors that influence the quality of video streaming.
根据已得到的公式，可以确定将平均时延及丢包率控制在所允许的范围内的服务率的具体数值。
From the formula, we can also come out cell service ratio which curbs the average cell delay and cell loss ratio in permissive range.
仿真结果表明，提出的机制有效地降低了平均端到端时延和数据丢包率，提高了信道接入公平性。
The simulation results show that the proposed scheme can effectively reduce the average end-to-end delay, mitigate packet dropped ratio, and improve fairness of channel access.
由已得到的公式，我们可以确定将平均时延及丢包率控制在所允许的范围内的服务率的具体数值。
Based on the formula, we can also determine the cell service ratio which curbs the average cell delay and the cell loss ratio in the permissive range.
如果没有这种附加信息，它需要重新传送大量的数据，这样会降低传送速率，从而适应高丢包率的网络。
Without this extra information, it would need to retransmit much more data and slow down its sending rate to accommodate what looks like a high-loss network.
该方案减少了每个分组需携带的哈希认证信息大小，并在高丢包率的情况下能够得到很高的成功验证概率。
This scheme reduces the size of hash authentication packet needed by every packet significantly, and can achieve very high verification probability over lossy network environment.
网络透视是一新兴网络课题，旨在通过端到端的方法得到链联级的性能特性，比如：丢包率和平均延迟等。
Network tomography is a new network question for discussion, which aims to obtain link-level performance characteristics, such as loss rate and average delay on each link, by end-to-end measurement.
网络透视是一新兴网络课题，旨在通过端到端的方法得到链联级的性能特性，比如：丢包率和平均延迟等。
Network tomography is a new network question for discussion, which aims to obtain link-level performance characteristics, such as loss rate and average delay on each link, by end-to-end measurement.
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