available bandwidth中文是什么意思

• 可用带宽

• available    adj. 1.有用的，可利用的。 2.可以得到的，可以买 ...
• available bandwidth ratio    可用带宽比
• bandwidth    (带宽)：电缆，链路或系统传输数据的能力。; 带宽，通讯频带; 频带宽，误差，范围; 频带宽度; 频宽；带宽; 频率带宽度; 通带宽度
• if bandwidth    中频带宽
• available    adj. 1.有用的，可利用的。 2.可以得到的，可以买到的。 3.有效的。 4.有当选希望的；愿意参加竞选的。 He is not available for the job. 他不适宜做这个工作。 available water 有效水分。 employ all available means 用尽一切方法。 ticket available on day of issue only 限当日通用[有效]的票子。 This book is not available here. 这里没有这本书。 The doctor is available now. 医生现在有空了。 adv. -bly 有效地。 n. -ness 有利，有效，效用，利用。
• available for    可用于
• available on    仅在...有效; 仅在…有效（付款）
• available to    对...有效
• available with…by    在…凭…有效（付款）
• be available    可利用的; 生效, 有效, 可供使用; 随叫随到
• be available for    可用与……; 有效
• be available to    可被……利用或得到的
• if not available    无法接通时
• it not available    假如没有空时
• not available    不可用; 不能利用的没有得到; 不能提供的; 无法使用; 无现货; 无效
• that are available    是定语从句; 修饰概念短语”行动方针“
• absolute bandwidth    绝对带宽
• acquisition bandwidth    捕获带宽
• actual bandwidth    实际带宽
• amplifer bandwidth    放大器带宽
• amplifier bandwidth    放大器带宽
• antenna bandwidth    天线带宽
• audio bandwidth    声频带宽
• b bandwidth    频带宽度
• bandwidth allocation    带宽分配

• The major focus of the thesis is the estimation of both the capacity and available bandwidth alone a given network path . we present two schemes , e . g . copp and capest , aiming for estimating effectively the capacity and available bandwidth of path respectively
  其基本思想是将一个报文对集合拆分为两个报文集合,分别包含报文对的第一与二个报文,并选取各集合中单向延迟最小的报文重构新的报文对进而得到被测路径的瓶颈带宽。
• To order to solve above problems , we design a novel rate - based multicast congestion control scheme - rbmcc , which uses the active explicit congestion indication and representative - based feedback control scheme to inform the source of the status of the network , and alternate the send rate by adjusting the packet intervals between packets . the goal of the dynamic congestion control algorithm is to make the entire system responsive to the changes as rapidly as possible in the offered loads or available bandwidth without getting into an oscillating behavior
  针对上述算法中存在的动态性、灵敏性以及由之引起的公平性等问题，本文第3章设计了一种新的基于速率的组播拥塞控制机制? ? rbmcc ，该算法利用积极的显式拥塞指示，基于代表的反馈机制，通过调节包与包的发送间隔来改变数据的发送速率，动态地自适应网络拥塞状态的改变。
• For packet loss result from network congestion , rab adopts the same recovery mechanisms as the original tcp ; for packet loss result from link error , it adopts a recovery mechanism which is called immediate recovery , and the value of congestion window of the source is set to a value that corresponds to the available bandwidth
  对于拥塞导致丢包，则采取与传统tcp协议相同的恢复机制(即窗口减半，并进入拥塞避免阶段的线性增加) ，而对于链路错误导致丢包，则采取立即恢复策略，将tcp源端的拥塞窗口设置为与其估计带宽相应的数值。
• According to the definitions of bottleneck bandwidth , available bandwidth and bulk transfer capacity , we analyzed the algorithms which named vps ( variable packet size ) , pptd ( packet pair / train dispersion ) , slops ( self - loading periodic streams ) and topp ( trains of packet pairs ) ; based on the principle of sub - path bottleneck measurement , we developed the bottleneck measurement algorithm using heterogenous packet - pair train ; after designing the three child algorithms ( demarcating bandwidth range , approaching bandwidth value and predicting the trendency of available bandwidth fluctuation ) , we performed the algorithm called self - loading binary search ; applying the multi - home properties of sctp ( stream controltransmission protocol ) and measurement algorithm of available bandwidth , we presented a scheme to adjust the sctp transport path when there are network congestions or faults ; by the library of winsock and winpcap , we developed a measurement program to look for bottleneck bandwidth . in ns2 experiments , the algorithm based on heterogenous packet - pair train fitted well , and the algorithm of self - loading binary search worked quickly , and the sctp scheme improved the throughput effectively
  本文根据瓶颈带宽、可用带宽和btc ( bulktransfercapacity )三类网络带宽定义,分析了vps ( variablepacketsize )和pptd ( packetpair / traindispersion )瓶颈带宽测试算法, slops ( self - loadingperiodicstreams )和topp ( trainsofpacketpairs )可用带宽测试算法;基于子路径瓶颈测试原理,设计了异构包对序列的瓶颈测试算法;并结合三个子算法(界定带宽范围算法、接近带宽值算法和带宽变化趋势判定算法) ,设计了自载流折半查找的可用带宽测试算法;把上面的算法应用到sctp ( streamcontroltransmissionprotocal )的多宿性和可用带宽测试,提出了一个网络拥塞或故障时调整sctp传输路径的方案;结合winsock和winpcap两套网络开发工具,设计了一个瓶颈带宽测试程序;通过ns2仿真实验,验证了基于异构包对序列瓶颈测试算法的准确性、自载流折半查找算法的快速性,和sctp改进方案的有效性。
• The internet is based on the sharing channel of tcp / ip protocol and consists of various heterogeneous subnets . it is unpredictable of its transportation latency , available bandwidth and data package lost rate . so it ' s necessary to have an efficient encoding method and an adaptive real time transportation strategy to meet the multimedia communication ' s requirement of latency and bandwidth
  Internet基于tcp ip协议信道共享，由多种异构网络互连而成的，其中的传输延时、信道带宽、数据包丢失率都是时变的、不可预测的，因此，对延时、带宽要求很高的多媒体通信，必须有一种高效的编码方法和根据带宽变化的实时传输策略。
• Based on this , we put forward a new tcp implementation which is called receiver advertisement based tcp ( tcp - rab ) . rab can estimate the available bandwidth dynamically , and it can also distinguish the type of error when packet loss occurs , which helps for the choice of different recovery policies
  在此基础上，本文提出了一种称为基于接收端通告的tcp协议实现( tcp - rab ) ，它能动态地估计tcp流所能使用的带宽，并在发生丢包错误后对错误类型进行鉴别，进而采取不同的错误恢复策略。
• In this thesis , we focus mainly on the estimation of end - to - end bandwidth or path bandwidth ( including both capacity and available bandwidth ) without cooperation of the network internal devices such as switches or routers etc . after review briefly the state - of - the - art in bandwidth estimation , we first analyze the major factors affecting the bandwidth estimation
  瓶颈带宽(或容量)及可用带宽是描述路径带宽特征的主要参数。通过深入分析报文对测量及带宽参数本身特征,给出了分别测量可用带宽与瓶颈带宽的有效方法copp与capest 。
• It is necessary to obtain performance data correctly and effectively for well designing , managing and applying network . performance measurement technology is the only effective way to obtain performance data correctly and effectively . it obtained network ' s correct performance characteristics by measuring the available bandwidth , delay and lost of packets , and monitoring the congest and traffic fluctuation etc . it is the base of designing , managing and applying network and very important for them
  要设计、管理和利用好网络，必须要求有效地获取性能特征方面的准确数据，网络性能测试技术是准确而有效地获取性能特征的唯一手段，它通过对网络实际和有效带宽、数据包的延迟和丢失等的测试以及对网络拥塞、数据的突发性等运行状况的监测，获得网络性能特征的准确数据，从而对网络的设计、管理和应用起着非常重要的作用。
• We chose suitable tcp throughput model to estimate the available bandwidth correctly , using the estimated round trip time and packet loss ratio for the next time interval as parameters of the model to achive the accuracy of estimated network bandwidth . as the observed losses and round trip time vary very dynamically , adjust the sending rate equivalent to the amount of tcp throughput may result in a rather fluctuant sending rate . so we present a rate adjustment like tcp congestion control based on aimd , which increases its sending rate by an additive inereease rate
  根据mpeg4视频流应用的特点，选择合适的吞吐量模型，进行合理的参数估计，并根据计算出的带宽进行相应的速率调整来实现拥塞控制，我们使用未来rtt的估计值和分组丢失率的估计值作为吞吐量模型的参数，增强了控制的实时性，弱化了业务的振荡性，提高了带宽预测的准确性；在进行速率调整时，不是简单地将发送速率调整到与tcp吞吐量模型一致，而是采用类似tcp的aimd策略来调节发送速率，减小了发送速率的振荡性。