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Description: 用贪婪算法寻找交换机的最佳匹配端口，效率比较高，时延抖动也比较小-Greedy algorithm used to find the best matching switch port, the efficiency is relatively high, delay jitter is also relatively small
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Size: 4096 |
Author: 陈艳玲 |
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Description: ns2中的trace分析脚本，用于网络仿真，吞吐量，延时，抖动率的分析-ns2 the trace analysis of the script for the network simulation, throughput, delay, jitter rate analysis
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Size: 4096 |
Author: yaocuncai |
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Description: NIST Net – A Linux-based Network Emulation Tool, It is a raw IP packet filter with many controllable channel parameters such as packet loss ratio, jitter, bandwidth variation, delay, and network buffer size. To simulate different network environments-NIST Net- A Linux-based Network Emulation Tool, It is a raw IP packet filter with many controllable channel parameters such as packet loss ratio, jitter, bandwidth variation, delay, and network buffer size. To simulate different network environments
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Size: 2309120 |
Author: 北科 |
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Description: 分析了IP 电话系统中回声的特点, 并针对其回声具有路径延迟、延迟抖动大等特点, 提出
了一种基于延迟分析的自适应回声消除器设计的新思想和相关算法。介绍了自适应回声消除器的
基本结构及各个功能模块, 例如: 变阶数自适应滤波器, 语音状态检测器, 延迟分析器和NLM S 算
法控制器. 本文还详细论述了以TM S320C6201DSP 为硬件平台来实现能运用在IP 电话网关中的
自适应回声消除器及其在IP 电话系统中的连接关系。在文章的最后, 列举了对自适应回声消除器
的性能测试结果, 并分析了自适应回声消除器的优点, 证明了自适应回声消除器能很好地解决IP
电话系统中的回声消除问题。-Analysis of the IP telephone system in the characteristics of echo, and echo with a path for its delay, delay jitter features and so on, the
A delay based on the analysis of adaptive echo cancellation design of the new ideas and related algorithms. Introduced the adaptive echo cancellation device
The basic structure and the various functional modules, such as: change the order of adaptive filter, voice status detector, the delay count analyzers and NLM S
Law controller. This article also discussed in detail in TM S320C6201DSP to achieve for the hardware platform to use in the IP Phone Gateway
Adaptive echo cancellation and its IP phone system in the connections. Finally, listed on the adaptive echo canceller
The performance test results and analysis of the adaptive advantages of echo cancellation devices to prove that the adaptive echo canceller can be a good solution to IP
Telephone system in the echo cancellation problem.
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Size: 259072 |
Author: wlch |
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Description: 当IP语音包的网络时延抖动较小时，一般的语音缓冲算法可以得到较好的语音质量。当网络中存在突发大时延时，就会出现极大丢包率或极大端到端时延，从而难以获得好的语音质量。为此，提出针对突发大时延下的自适应语音缓冲算法。通过估算网络平均时延和学习语音包经过的网络路径上的状态，来确定需要控制端到端时延大小和语音包的丢包率，动态调整Jitter Buffer队列的最小深度和最大深度，从而可以尽量减小语音裂缝（gap）的出现。通过基于听觉模型的客观音质评价（PESQ）仿真计算以及在实际语音网关设备中的应用表明算法对语音通信质量有一定的改善作用。-The continuous playout of voice packets in the presence of variable network delays is often achieved by buffering the received voice packets for sufficient time. Basic jitter buffering algorithms can work well only when the delay does not spike status of the networks, is presented to promote the quality of voice communication. It timely adjusts the minimal and maximal depth of buffer queue according to the control target of end-to-end delay and packet loss rate. The algorithm can much more easily achieve the continuous playout because it plays voice packet at a fixed inter-play time in the most time of a talk-spurt. The control target of packet loss rate can be extended to 20 . However, the basic algorithms can only bear 5-10 of the packet loss rate. Perceptual evaluation of speech quality(PESQ) is applied to assess the speech quality in the simulation. It is shown that the algorithm can obviously promote the quality of voice communication in IP networks with spike delay. The practic
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Size: 329728 |
Author: 瞿志超 |
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Description: 教科书上常用的按键程序很多时候误导了使用者。例如其中的消机械抖动用延时10MS部分浪费了CPU大部分资源，这里介绍了一种通过检测键值变化的企业内部常用编程方法。-Textbooks commonly used keys on the procedure the user is often misleading. For example, mechanical energy dissipation with delay jitter 10MS most part a waste of CPU resources, this paper presents a key by detecting changes in programming methods commonly used within enterprises.
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Size: 33792 |
Author: 卢枝 |
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Description: ns2 delay measurements tool
and throughtput,jitter-ns2 delay measurements tool
and throughtput,jitter
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Size: 1024 |
Author: ok |
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Description: Deploying Voice over IP (VoIP) successfully in a data network has some unexpected pitfalls. In previous papers, we’ve explored how to do a Voice Readiness Assessment [1] and looked at focused planning and design tips [2,3]. This paper describes changes you can make to improve how a data network handles VoIP traffic – that is, how you can reduce one-way delay, jitter, and data loss for VoIP traffic, while retaining the performance of your other business-critical network applications.
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Size: 240640 |
Author: primitive_man |
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Description: Linux环境中NS2TCPUDP ns2下仿真有线网络的延时、抖动、吞吐量的实验源码-Under the Linux environment NS2TCPUDP ns2 simulation wired network delay, jitter, throughput experimental source
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Size: 359424 |
Author: 李东国 |
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Description: 描述了因特网和IP的主要特征，包括包丢失和时延抖动，并让读者了解数字信号处理器(DSP)和语音编码器在VoIP中所扮演的角色。本书还为读者讲述了如何通过ISDN、xDSL、HFC本地环路或其他途径建立与业务提供商之间的通路，以及目前主要的IP电话协议-Describes the main features of the Internet and IP, including packet loss and delay jitter, and to allow readers to understand the digital signal processor (DSP) and voice coder in the role of VoIP. The book also tells the reader how to ISDN, xDSL, HFC, or other means to establish a local loop between the suppliers and business access, and the current major IP telephony protocol
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Size: 19512320 |
Author: han |
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Description: QoS, Quality of Services The data transfer requirements are defined with
different QoS parameters
+ e.g., delay, jitter, error rate, capacity
The customer negotiates the QoS parameters with
the service provider before the use of service
The highest protocol level is used in negotiations
Parameters are transformed and distributed to the
lower levels
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Size: 189440 |
Author: hidetsugu |
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Description: NS2结果分析awk文件，包括吞吐量、队长、jitter、延时等分析。-Analysis of NS2 awk files, including throughput, captain, jitter, delay and other analysis.
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Size: 2048 |
Author: 李华 |
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Description: 经过验证可以使用的awk源码 包括测设丢包率 吞吐量 抖动率 延迟时间-You can use the awk proven source, including packet loss rate determination for the rate of throughput delay jitter
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Size: 3072 |
Author: 陈磊 |
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Description: Iperf was developed by NLANR/DAST as a modern alternative for measuring maximum TCP and UDP bandwidth performance. Iperf allows the tuning of various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, datagram loss. -
Iperf was developed by NLANR/DAST as a modern alternative for measuring maximum TCP and UDP bandwidth performance. Iperf allows the tuning of various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, datagram loss.
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Size: 1393664 |
Author: vicky |
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Description: ntfs was developed by NLANR/DAST as a modern alternative for measuring maximum TCP and UDP bandwidth performance. Iperf allows the tuning of various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, datagram loss.
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Size: 624640 |
Author: vicky |
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Description: gnuplot files awk file to calculate average end to end and average jitter by mohit
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Size: 24576 |
Author: michelle |
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Description: 建立环状队列保存过去10个键盘状态，利用天然获得的时延，消键抖，防止连续动作，选择响应模式（下键或抬键动作）。还可以防止两键同按引起的误动作，这里主要靠键值识别，两键同下的键值与单键下键的值不同，拒绝之即可。-Create circular queue holds the state over the past 10 steps of the keyboard, using natural available delay, jitter elimination keys, to prevent the continuous action, select the response mode (the key or lift button action). You can also prevent the two key malfunction caused by the same, this is mainly identified by the key, two keys with one-touch keys with the following value under the key difference, the refusal can be.
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Size: 2048 |
Author: zhao |
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Description: Iperf是一个网络性能测试工具。可以测试TCP和UDP带宽质量，可以测量最大TCP带宽，具有多种参数和UDP特性，可以报告带宽，延迟抖动和数据包丢失。-Iperf is a network performance testing tools. To test TCP and UDP bandwidth, quality, and can measure the maximum TCP bandwidth, with a variety of parameters and UDP characteristics, can report the bandwidth, delay jitter and packet loss.
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Size: 248832 |
Author: xibeixue |
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Description: Mausezahn 是一个采用C开发的快速的网络包生成工具。让您发送几乎一切可能的和不可能的数据包。它主要用于测试VoIP或组播的网络，但也为安全审计，以检查是否你的系统是强化具体的攻击不够。-Mausezahn is a free fast traffic generator written in C which allows you to send nearly every possible and impossible packet. It is mainly used to test VoIP or multicast networks but also for security audits to check whether your systems are hardened enough for specific attacks.
Mausezahn can be used for example:
As traffic generator (e. g. to stress multicast networks)
To precisely measure jitter (delay variations) between two hosts (e. g. for VoIP-SLA verification)
As didactical tool during a datacom lecture or for lab exercises
For penetration testing of firewalls and IDS
For DoS attacks on networks (for audit purposes of course)
To find bugs in network software or appliances
For reconnaissance attacks using ping sweeps and port scans
To test network behaviour under strange circumstances (stress test, malformed packets, ...)
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Size: 913408 |
Author: susu |
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Description: 这是一个在Mesh环境下做的典型星型拓扑路由协议仿真，还有awk分析延迟、抖动、丢包率等特性，希望对做Mesh毕业设计的人有帮助-This is done under a typical Mesh star topology routing protocol emulation, and awk analysis of delay, jitter, packet loss rate and other characteristics, and I hope people do Mesh graduation help! ! Thank you! !
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Size: 177152 |
Author: 肖文泽 |
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