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MultiHopWhitePaper_chn
- 随着无线mesh网络的普及,其规模和复杂程度持续发展。然而多跳的mesh网络遇到越来越多的难题,比如带宽降低,无线干扰以及网络时延等。譬如,在网络中的每一跳吞吐量会下降多达50%,连续多跳情况下吞吐量下降得更迅速,其结果将导致网络性能的严重降低。在语音和视频应用大量运行的极端情况下,时延和RF干扰将达到不可接受的程度,而导致连接完全中断-wireless mesh network with the popularity of its size and complexity of sustaina
A76
- 随着无线mesh网络的普及,其规模和复杂程度持续发展。然而多跳的mesh网络遇到越来越多的难题,比如带宽降低,无线干扰以及网络时延等。譬如,在网络中的每一跳吞吐量会下降多达50%,连续多跳情况下吞吐量下降得更迅速,其结果将导致网络性能的严重降低。在语音和视频应用大量运行的极端情况下,时延和RF干扰将达到不可接受的程度,而导致连接完全中断-wireless mesh network with the popularity of its size and complexity of sustaina
ASP.NET2.0clientcallback
- 开发人员使用Javascr ipt的一个主要原因就是可以避免回发过程中带来的页面刷新。例如我们可以根据用户的需要使用Treeview控件来展开和折叠相应的数据节点。当你展开一个节点时,该Treeview控件将会利用Javascr ipt读取服务器上的子节点信息,然后平滑无刷新地插入这些新节点。如果没有使用Javascr ipt的话,Treeview控件将会因为页面的回发而重新构建。不但用户会发现因页面刷新而带来的延迟,而且页面极有可能回复到原来的状态,即丢失前面所展开的那些子节点信息。对于服务器
fullSim
- This a simulator written in Tcl to simulate a network node carrying GSM and GPRS traffics with QoS mechanisms. The payload type including circuit-switched voice, VoIP and web traffic, and the performance including packet drop, delay can be analyzed.
profinet
- 工业网络协议的设计是网络控制系统分析和设计的重要内容. 网络诱导的延时值越小, 则越有利于系统的稳定和控制 算法的设计. 在工业以太网络通信协议( IECP) 模型中, 工业通信协议一般建立在传输层或是应用层. 通过工业通信模式、数据 报和IECP 通信程序, 详细介绍了IECP 的设计. 提出了网络协议的性能指标,-Industrial network protocol is designed to network control systems analysis and design
PARM_AINA_2006
- Current Peer-to-Peer (P2P) systems were developed and implemented as a result of a direct requirement/demand without an overall functional architecture. This makes the performance of the resulting systems far from optimal because other aspects
netsim
- To simulate the CSMA/CD and CSMA protocols and analyse their performance particularly mean delay and throughput using netsim.
TCP_Performance_Over_Wireless_Network
- Transmission Control Protocol (TCP) is the dominant transport protocol in the Internet and supports many of the most popular Internet applications, such as the World Wide Web (WWW), file transfer and e-mail. TCP congestion control algorithms dyna
grp_filter_time
- 群时延是通信系统性能的重要指标,这是时域群时延滤波器的设计程序-Group Delay is an important indicator of performance, communication system, which is time-domain group delay filter design program
netperf-2.4.1
- 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
ntfs-3g-2009.4.4
- 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.
freqBlind-Em
- 文章根据频率选择性衰落信道的抽头延迟线模型,将针对平坦衰落信道的CS(周期平稳过程理论)频偏盲估计 算法扩展到了频率选择性衰落信道,并通过仿真证明这种扩展是可行的.仿真结果还表明CS算法不仅有好的抗平 坦衰落能力,而且有很好的杭频率选择性衰落性能.-Article according to frequency selective fading channel tap delay line model, the flat fading channel for CS (cycle stati
IEEEXplore(981)
- WiMAX and WiFi have emerged as promising broadband access solutions for the latest generation of wireless MANs and LANs, respectively. Their complementary features enable the use of WiMAX as a backhaul service to connect multiple dispersed Wi
target-tracking-in-three-dimensional
- 介绍了三点垂直线阵被动定位的原理. 结合矢量水听器测得的方位角和高低角及到达 阵元间的时延差, 建立了三维坐标下的状态方程和观测方程.运用扩展卡尔曼滤波算法, 研究了该系统的目标运动分析问题. 通过蒙特卡洛模拟仿真试验, 结果表明上述方法具有较高的定位性能,有较强的使用价值. -Introduced three vertical linear array passive location principle of vector hydrophone. Combining the meas
Bearings-only-target-tracking
- 本文分别就纯方位角跟踪中的机动目标跟踪、有信号传输时延时的跟踪及一类特定的多目标跟踪问题进行了较为系统和深入的研究。首先,针对非机动目标提出一种智能距离参数化无味滤波方法,与传统方法相比,改进了跟踪初始性能、滤波精度以及优化了系统资源。其次,针对机动目标纯方位角跟踪提出一种将交互多模型和核粒子滤波结合的方法,在维持跟踪精度的前提下,大幅减少了所需粒子数,改善了系统实时性。-This paper bearings-only tracking of maneuvering target tracki
fixture-delay-teleoperatio
- 以空间机器人在轨服务为背景,建立了卫星在轨自维护系统的地面遥操作平台.远端由安装 在卫星本体上的一个四自由度机器人和灵巧手的臂/手系统组成,当卫星出现故障时,遥操作者通 过空间鼠标和力反馈数据手套分别控制远端的臂/手系统排除卫星故障,实现卫星的自我维护.对 于地面一太空之间通讯的大时延,利用3D图形预测仿真技术克服时延的影响,并采用虚拟夹具法提 高遥操作系统的安全性和操作性能.在大时延及变时延(约7 s)的条件下,实现了武汉遥操作哈尔 滨的自维护机器人臂/手系统,成功地完成了
Pseudo--Random-Code-Delay
- 利用扩展卡尔曼算法( EKF)对高动态直接扩频信号的载波相位和频率进行了估计,并利用载波辅助技术测量载波相位的变化值来 校正伪码延时环,减小多普勒频移对伪码延时的影响,得到了精确的延时估计值,提 高了伪码延时锁定环的动态跟踪性能.-The PN delay loop is adjusted through measuring the varied value of carrier phase with carrier aiding technology. The effect of Do
NS2-simulation-environment-to-delay
- 本文在掌握多种网络路由算法的基础上,通过广泛地收集资料和学习,深入了解和分析各种经典的路由算法,对国内外时延计算的各种算法进行分析和阐述,并简要说明了各种算法的工作原理、内部联系及相互转化的条件。并实现了基于NS-2的仿真软件环境下,对现有较为经典的Wfq和VC算法进行软件仿真,对算法仿真结果特点进行分析,最终得出两种算法时延结论,从而确保整个网络高性能运行提供理论支持。-In this paper, master a variety of network routing algorithm b
Energy-Aware-and-Delay-Tolerant-Data-Gathering.ra
- Sink mobility has attracted much research interest in recent years because it can improve network performance such as prolonging network lifetime.
Aloha2
- 对射频识别中aloha算法的吞吐率、时延性能进行了仿真,并与帧时隙aloha算法进行了对比。-The throughput and delay performance of Aloha algorithm in radio frequency identification are simulated and compared with frame time slot Aloha algorithm.