擁塞效應 的英文怎麼說

中文拼音 [yōngsèxiàoyīng]
擁塞效應 英文
crowding effect
  • 擁 : 動詞1 （抱） hold in one s arms; embrace; hug 2 （圍著） gather around 3 （擠著走） crowd; throng...
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
  • 擁塞 : jam; congest
  • 效應 : [物理學] effect; action; influence
  1. In the proposed method, the controller takes the buffer length as congestion indication, takes sources quality and bandwidth utility as object function so as to learn on line. as the controller outputs, the coding rate for input traffic sources and the corresponding user percentage are used to adjust the cells " arrival rate to the multiplexer buffer. compared with the previous method where cells " arrival rate is tuned only by the encoding rate and the encoding rates for all input traffic sources are regulated in a body, the proposed method guarantee that the quality of cells are optimal while cell loss rate is minimized, which means quality of service is guaranteed

    在該方法中，擁塞控制器以緩沖區大小信元作為擁塞指示，以信源質量和帶寬利用率作為目標函數進行在線學習，控制器輸出包括信源編碼率及其對應的用戶數在全部用戶中所佔的百分比，即根據信源編碼率及對應的用戶百分數調整信源輸入流，從而克服了以往擁塞控制方法中僅僅調整編碼率帶來的對所有信源進行整體調整的缺陷，使控制系統在信元損失率最小情況下確保信源輸入流質量最高，從而有效地利用了網路帶寬。
  2. All packets are treated equally. there lacks of efficient queue management. congestion happens here and there between whiles, which causes the dropping of packets or the jitteriness of transport, and even pervades to collapse the network

    但是「盡力而為」服務仍是目前internet中主要的一種服務類別，所有分組在網路中被同等對待，缺少有效的管理，局部的擁塞經常發生，導致網路性能下降、應用的分組丟失和數據抖動，不能保證服務質量（ qos ） 。
  3. There lacks of efficient queue management. congestion happens here and there between whiles, which causes the dropping of packets or the jitteriness of transport, and even pervades to collapse the network. with the development of internet based business and applications, quality of service ( qos ) is required and internet is expected to support the qos

    但是「盡力而為」服務仍是目前internet中主要的一種服務類別，所有分組在網路中被同等對待，缺少有效的管理，局部的擁塞經常發生，導致網路性能下降、應用的分組丟失和數據抖動，不能保證服務質量（ qos ） 。
  4. Using method of oil - flow visualization techniques and measuring pressure distribution along airfoil chordwise and spanwise studies have been down for sidewall boundary - layer displacement effect in two - dimensional wind tunnel. three different chord models were tested in two different wind tunnel. in order to clarify the sidewall effects and study method of sidewall suction theory and sidewall interference correction method to remove effects of sidewall on model. the results of oil - flow test show that selection rational suction wary can obtain better testing results. by investigations on effects of the sidewall boundary layer suction and application of a sidewall interference correction method

    為了很好地解決多機場航班隊列的擁塞問題，在將進場容量、離場容量與機場容量作為統一整體的情況下，充分考慮了機場間的網路效應，詳細研究了多機場航班隊列的優化問題，建立了多機場開放式非實時流量管理的數學模型，通過選取適當的決策變量，使其為線性0 - 1整數規劃模型，實現了中心流量集中管理.與其它演算法不同，本文提出的啟發式隱枚舉演算法能很好地解決此類問題，對某機場網路系統的模擬結果證明了所建模型、優化演算法及相應軟體的有效性和可靠性
  5. 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

    要設計、管理和利用好網路，必須要求有效地獲取性能特徵方面的準確數據，網路性能測試技術是準確而有效地獲取性能特徵的唯一手段，它通過對網路實際和有效帶寬、數據包的延遲和丟失等的測試以及對網路擁塞、數據的突發性等運行狀況的監測，獲得網路性能特徵的準確數據，從而對網路的設計、管理和應用起著非常重要的作用。
  6. Available bit rate ( abr ) flow control is an effective measure in atm network congestion control and traffic management

    自適應比特速率（ abr ）業務的流量控制是atm網路中一種有效的擁塞控制機制和流量管理手段。
  7. In fact, it will be more effective for detecting and preventing congestion if the routers peilbini congestion control strategies, so ip congestion control strategies has been discussed widely in recent years. the ietf has proposed the solution by deploying active queue management in internet routers. in this paper, chapter one gives a general introduction to the network congestion control

    由於在路由器中引入相應的擁塞控制機制，使網路本身參與資源的控制工作可以更有效地實現對擁塞的監測和預防，因此近幾年ip擁塞控制策略成為當前網路研究的一個熱點， ietf建議在internet路由器上採用主動隊列管理機製作為ip層參與擁塞控制的手段，隨機提前檢測（ red ）演算法是ietf推薦的一種主動隊列管理演算法。
  8. 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

    本文根據瓶頸帶寬、可用帶寬和btc （ bulktransfercapacity ）三類網路帶寬定義，分析了vps （ variablepacketsize ）和pptd （ packetpair / traindispersion ）瓶頸帶寬測試演算法， slops （ self - loadingperiodicstreams ）和topp （ trainsofpacketpairs ）可用帶寬測試演算法;基於子路徑瓶頸測試原理，設計了異構包對序列的瓶頸測試演算法;並結合三個子演算法（界定帶寬范圍演算法、接近帶寬值演算法和帶寬變化趨勢判定演算法） ，設計了自載流折半查找的可用帶寬測試演算法;把上面的演算法應用到sctp （ streamcontroltransmissionprotocal ）的多宿性和可用帶寬測試，提出了一個網路擁塞或故障時調整sctp傳輸路徑的方案;結合winsock和winpcap兩套網路開發工具，設計了一個瓶頸帶寬測試程序;通過ns2模擬實驗，驗證了基於異構包對序列瓶頸測試演算法的準確性、自載流折半查找演算法的快速性，和sctp改進方案的有效性。
  9. Differentiated from the former markers, afm neither aims at some certain factors, nor tries to establish a precise mathematic model. on the contrary, afm follows a rule of result - oriented and reallocates the network resources in an adaptive manner, and thus gains high performance in the fairness of bandwidth sharing ; 3 ) the congestion control mechanisms of the current tcp have been proved to be effective for prevention of network collapse. however, with the development of network technologies, the insufficiencies of tcp are becoming increasingly severe, especially in the environment of heterogenous networks, the throughput performance of tcp is disappointing

    與以往的標記演算法不同的是，該演算法並不針對具體某一個因素對公平性的影響，也不試圖建立一個精確的數學模型，而是按「結果導向」以一種自適應的方式來對可用的網路資源進行重新分配，從而獲得很高的公平性； 3 ） tcp協議的擁塞控制機制已經被證明能有效地防止網路崩潰的發生，但隨著網路技術的發展， tcp協議的一些局限性也已經暴露出來了，尤其是在異構網路環境下，其吞吐量性能表現令人堪憂。
  10. It also has the capability of self - adaptive rerouting in case of congestion and failure in the network

    它還具有在網路擁塞和失效的情況下，自適應調整路由的能力。
  11. This scheme can avoid the emergency of orphan effectively, and gives a good solution when the node isn ’ t available. the protocol we design is named as soptt, which is shorted as “ self - organize protocol of tree topology ”. the layer of application we design can gather and send data, realize the function of data fusion to avoid the potential communication congestion so that the communication will be more effectively

    該協議解決了節點路由的建立和重建，還可以根據節點剩餘電能的情況智能選擇簇首節點，並且有效地避免了孤兒節點的產生，對于節點失效的情況也能夠很好處理;在應用層，基於智能樓宇溫度監測應用環境，設計並實現了採集發送數據的程序，使得採集、發送數據的頻率符合應用需要，並且提出了數據融合的思想，以避免可能發生的通信擁塞，同時也達到了通信的高效性。
  12. This policy can make video transmission rate of sender automatically adaptive to the changes of network states and efficiently reduces network congestion

    該方法可以使發送方的視頻傳輸速率自動適應網路狀態的變化，並有效減少網路的擁塞。
  13. Based on the detail of traditional tcp, the reason of the low throughput and impaired performance of tcp in wireless networks is given, then some solutions are proposed based on the transmission control principle. moreover the impactions of protocols in the lower layers including mac and routing protocol on tcp in ad hoc network are discussed in detail, and the interaction between tcp and mac layer protocols, the affection of route protocols on the performance of tcp and the particular congestion control and error recovery mechanism are first investigated. in this environment an integrated wireless tcp, called iwtcp, is presented to solve the problem about higher bit error rates and disconnection, which emphasizes on the analysis and simulation, the results show that the scheme can greatly improve the performance of tcp, and the realization of iwtcp is given at last

    文中主要針對分散式adhoc網路，由於其獨特的網路結構，所以我們在分析tcp基本原理的基礎上，討論了傳統tcp在無線環境中吞吐量較低、性能惡化的原因，並闡述了無線環境對擁塞控制機制提出的要求，同時就adhoc網路中低層網路協議（ mac層和網路層協議）對tcp的影響進行了詳細的分析，強調tcp和mac層機制間的相互作用、路由協議中造成adhoc網路中tcp性能降低的原因，並針對現有無線tcp方案不能有效應用於有線無線網路的問題，提出了應用在adhoc網路和internet網路互聯環境下的一種綜合性tcp解決方案? ? iwtcp ，重點對該方案的性能進行模擬，從理論上分析了性能提高的主要原因，並證明此機制可在很大程度上提高adhoc網路中tcp的性能，最後給出了iwtcp具體軟體實現方案。
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