鏈路可用率 的英文怎麼說

中文拼音 [liànlùkěyònglǜ]
鏈路可用率 英文
link availability
  • 鏈 : Ⅰ名詞1. （鏈子） chain Ⅱ動詞（用鏈栓住） chain; enchain Ⅲ量詞（計量海洋上距離的長度單位） cable length
  • 路 : 1 （道路） road; way; path 2 （路程） journey; distance 3 （途徑; 門路） way; means 4 （條理） se...
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 鏈路 : chain circuit; periodic line; link; link circuit; path of chain
  1. According to the mean message traversal, the performance of leo / meo mobile satellite communication networks with intersatellite links ( isls ) is analyzed in this paper. three different traffic patterns are used in the analysis. if the isl number per satellite increases, the advantage of packet switch is more significant than that of circuit switch

    本文提出了一種基於信息平均傳輸距離的中/低軌衛星移動通信系統星際鏈路網路性能的分析方法.根據三種不同的業務分佈模型對繁/簡兩種網路的信息過網時延和呼叫丟失率進行了分析.通過增加網路中每個節點星際鏈路的數目可以改善網路的性能，而且這種改善對採用分組交換的系統比採用電路交換的系統大
  2. Because of the unique issues in the networks, including mobility - induced disconnection, network partition, high out - of - order delivery ratios and channel errors, the congestion control and the error recovery in the network is challenging. in this environment, 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 discussed. then a particular transport layer protocol scheme based on the non - feedback mechanism is presented, with emphasis on the analysis and simulation of the key parameter

    文中主要討論了兩種不同網路結構中的無線tcp協議改進方案，其一在最後一跳為無線鏈路的網路環境中，針對基本tcp擁塞控制機制存在的缺陷，文中在現有解決方案的基礎上提出一綜合性的方案，其中包括無線鏈路的高誤碼率和連接斷開問題的解決，並重點對方案中出現的交叉層問題進行分析和模擬；其二，考慮的是分散式網路（ adhoc ） ，在文中較為詳細的分析了tcp和mac層機制間的相互作用、路由協議中造成tcp性能降低的因素、 adhoc網路中應採取的特殊擁塞控制和差錯恢復機制，在此基礎上提出了一種採用非反饋機制的解決方案，重點對方案中的關鍵參數進行分析和模擬，分析和模擬結果表明此機制可在很大程度上提高adhoc網路中tcp的性能。
  3. To analyze some key technologies of optical network relative with rwa in detail, such as transmission, switching and internetworking ; to emphasize on the research of function, fabric and performance of optical cross - connection ; to carry out numerical simulations for crosstalk introduced by optical cross connect and to present measurements for suppressing it such as doubly filtering, fixing optimum decision threshold and appropriately choosing the number of multiplexed wavelengths ; 3. to research the fundamental principle and some problems relative with rwa, including the type of optical network, the type of traffic, the type of service, the survivability of optical network ; to classify and compare rwa algorithms and particularly research some dynamic rwa algorithms ; 4. to present reserved light - path and classify network resource such as used, unused and reserved status, to emulate establishment of all - optical connection in optical network through modified rwa algorithm and show effectively reducing setup time of all - optical connection utilizing reserved light - path ; to research rwa algorithms of multi - fiber network, to present new link weight functions dependent on node degree, unused fiber ( s ) per wavelength - layer and routing policies, to perform emulation of rwa based wavelength layer graph applying new link weight functions and show them make algorithms better performance and network lower blocking rate ; 5

    詳細分析了與rwa相關的光網路關鍵技術，包括傳輸、交換、組網等，重點研究了光交叉連接的功能和結構、性能，對其引入的串擾進行了詳細分析，選擇恰當的器件參數進行了數值模擬，並提出了抑制措施（如雙重濾波、優化判決門限、選擇恰當的復用波長數） ; 3 .研究了光網路的r認叭的基本原理、與r認叭的幾個相關問題（光網路類型、業務類型、流量類型、光網路生存性） 、 r認人演算法的分類和比較，具體研究了幾種動態r場人演算法; 4 .研究了以全光連接建立時間為優化目標的r認認演算法，提出預置光路的概念，對網路資源進行狀態分類（佔用、未佔用、預置） ，利用改進的r認叭演算法模擬，預置光路可為部分新到的連接請求快速建立連接，從而提高網路性能;研究了以多光纖網路連接阻塞率為優化目標的r認城演算法，提出了以節點度數、每個波長分層的空閑光纖數以及路由策略決定的幾種鏈路權重函數，利用基於波長分層圖模型的并行r場人演算法模擬，利用新的鏈路權重函數使得演算法具有更優的性能，使網路具有更低的連接阻塞率。
  4. If the system is stable, the packets loss can be avoided. moreover the system can quickly use the increasing available bandwidth and the throughput of networks is increased. in this paper, chapter one presents a general introduction to the network congestion control

    具體來說，系統穩定性時，可獲得更好的網路吞吐量和資源利用率，保持較高的鏈路利用率，同時能夠減少丟包率和排隊延遲，提高整個網路的服務質量（ qos ） 。
  5. The software system provides the switch with the ability to support each user monopolize lombps bandwidth, through which the user can use vod, voip and other digital services, and it also allows the switch to support multicasting, trunk, and traffic isolation. this thesis consists of five parts. the first chapter introduces ethernet access technologies and requirements for the switches

    通過軟體系統的配置，接入交換機能夠使用戶獨享10mbps帶寬，使用視頻點播、 voip等實時業務，支持組播以提高網路帶寬的利用率，支持鏈路聚合，在互連交換機的多條可用的物理鏈路間實現自動的負載均衡。
  6. Based on the results of the theory analysis and computer simulation of suspended stripline low pass filter, band pass filter, the transition from waveguide to finline and the transition from waveguide to suspended stripline, the structure design and manufacture were made. the measured results match the requirement. different from the traditional mixers used in the domestic communications satellites, the sub - harmonic balance mixer type was used in the ka - band mixer design

    在ka頻段混頻器的研究過程中，通過對衛星和飛船所用到的混頻器進行研究，在對ka波段的傳統射頻前端電路的分析基礎上，提出改變以往星上傳統的基波混頻方案，採取了次諧波混頻方案，降低了本振頻率，簡化了本振鏈路，使噪聲特性、可靠性獲得改善。
  7. It is particulary suited to multirate signal transmission due to the use of an offset stacked spreading modulation scheme, which simplifies th ' e rate - matching algorithm relevant to multimedia services and facilitates asymmetric traffic in up - and downlink transmissions for ip - based applications

    通過調整偏移棧，偏移的大小，可簡化多媒體服務的速率匹配演算法，特別適用於ip網路中上行鏈路和下行鏈路非對稱業務的傳送。
  8. Send the real - time position, velocity of the moving object. received by gps oem caxd, associaied with the status information of the vehicle devices, to the monitoring centef, by way of the mobile conununication network. the monitoring system, based on some gis software, displays the tracks of the mobile objects on the eiectronic map, and users could supervise and query their iaterested parameters such as the location or velocity of the vehicle, the general information of vehicles, as so on, so that provide bases for vehicle management, improve the efficiency, or assure vehicles against accidents

    車輛監控系統是its的重要組成部分之一，它將全球衛星定位技術、地理信息技術（ gis ）和現代通信技術結合在一起，通過將裝有gps接收機的移動目標的動態位置、速度、狀態等信息，實時地通過無線通訊鏈路傳送至監控中心，在具有強大的地理信息查詢功能的電子地圖上進行移動目標運動軌跡的顯示，並可以對目標的準確位置、速度、運動方向、車輛狀態等用戶感興趣的參數進行監控和查詢，為調度管理提供可視化依據，提高車輛的運營效率，確保車輛安全。
  9. Then we conclude that the cell capacity decrease dramatically under the high bit rate service ; the interference factor of ajacent cells and the orthorgonal factor are also important parameters to influence the cell capacity ; the downlink can accept more users than uplink, so the capacity of wcdma system will be limited in uplink

    從中得到結論，高數據速率的用戶將會佔用更多的系統資源，當數據業務增多時，小區用戶數下降很快；鄰近小區的干擾與正交性的優劣也是影響小區容量的重要因素；下行鏈路可以比上行鏈路容納更多的用戶，因此wcdma系統的容量將受限於上行鏈路。
  10. This article takes hanging off and wide fluctuation of transmition velocity of adsl as example, then analysis centers on the discerte multiple tone and the principle of channel load assignation. from analysis above article points out the root of adsl being sensible of noise signal. at last, reserches effects that window function and barrier effect on frequency and adopts fft to work out the noise power of adsl

    本文以電信現在推出的adsl傳輸中鏈路經常掉線和傳輸速率經常大范圍波動為例，重點分析了adsl所使用的dmt調制方式和注水演算法分配通道載荷方式原理，由此指出adsl對噪聲信號敏感的根源，在得到問題的根源之後，分析了窗函數和柵欄效應對頻譜的影響，採用fft方法計算adsl線路的噪聲功率譜，為adsl線路測試提供了可靠的理論依據。
  11. In order to solve the qos constrained multicast routing in mpls network, including bandwidth, delay, delay jitter, loss rate and cost, we construct a globally optimizing ant algorithm. based on the ant algorithm and qos, we study and develop an algorithm which can repair the multicast routing tree when the network multicast links fail. this algorithm can make traffic rerouting, recover network from failure and improve the ability of resilience

    本文探討了在mpls網路中，使用螞蟻演算法解決了包含帶寬、延時、延時抖動、包丟失率和最小網路費用等約束條件在內的服務質量組播路由問題；並且在考慮服務質量的基礎上，研究並設計了在網路出現鏈路故障之後，對組播路由樹進行補救的演算法，使得網路的業務流可以重路由，網路故障得到恢復，提高了網路的恢復力。
  12. Compared with blue, it can improve link utilization and decrease packet loss rate at the same time

    和blue相比，它在提高鏈路利用率的同時可以降低丟包率。
  13. Next, a novel priority - based wavelength assignment algorithm in all - optical networks with partial wavelength conversion is proposed, based on link independent assumption and the method of calculating the network the blocks probability. it improves the routing and wavelength assignment presented by others. this algorithm fits the demand of different business for asking the grade of corresponding different services in the modern all - optical network than the original algorithm

    其次研究了部分波長可變wdm網中支持優先級的波長分配問題，以及在此網路中網路阻塞概率的計算;基於鏈路波長佔用獨立性假設，改進了在部分波長轉換wdm網中已有的rwa演算法，提出了一種支持優先級的動態波長分配演算法，該演算法保證了較高優先級的光路建立請求具有較低的阻塞率，比原有演算法更加適合現代光網路中不同業務請求對應不同服務等級的要求。
  14. The link failure probability is also formulated by utlizing a simple and accurate approximation to incorporate the effect of imperfect power control

    使用合併正態對數的近似方法推導出鏈路可靠性與非理想功率控制的關系。
  15. With the rapid development of wireless communication technology and computer technology ， people wish to get reliable data communication service any time and any where. traditional network can not supply communication service if the whole network need to move because the network devices are fixed by wires and can not move. so, ad hoc network comes. it can provide mobile data communication service compared with traditional network. ad hoc is a network with plat structure and all the nodes is equal. all the nodes need provide relay. but not all the nodes will provide relay and the performance of plat structure is poor in large scale. so the wireless mobile self - organized network adopts a two - level structure by referencing the cell mobile communication system. wmsn uses wireless routers to construct network. it can provide wireless access, relay services to users

    考慮到不是所有的站點都願意提供中繼服務及平面結構的局限性（在網路規模較大時性能會很差） ，本課題的無線移動自組織網路參考了蜂窩移動通信系統的特點，是一種具有兩級結構的網路。使用專門的無線設備? ? 「無線路由器」構成具有用戶無線接入、無線組網和路由功能的無線互連網路，為移動用戶提供無線接入、路由和中繼服務。 ieee802 . 11b可以提供很高的通信速率，可以提供很好的接入性能，並且支持ieee802 . 11b協議的設備正成普及的態勢，因此成為我們所選擇的鏈路層協議。
  16. The protocol opnet models built here could be reused for the simulation of throughput performance of aos bitstream, virtual channel access and other services, for the simulation of delay, channel utilization, and other aos protocol performance metrics, or for the simulation of the performances of high layer protocols ( space network layer, transport layer ) based on the aos space data link protocol

    可以在本課題建立的協議opnet模型基礎上進行aos協議位流、虛擬通道接入等其它業務吞吐量性能模擬，或進行延遲、通道利用率等協議其它性能模擬，或將模型應用於基於aos數據鏈路層的高層協議（空間網路層、傳輸層）性能模擬。
  17. Tdd - cdma has so much technology advantage such as high spectrum effectiveness, big capacity, supporting asymmetrical uplink and downlink and so on, that it can especially solve the problem of some areas in our country which have overpopulation and scarcity of spectrum resource

    Tddcdma技術具有上下行鏈路不對稱、頻譜利用率高、發射功率低等優點，非常適合於第三代移動通信中的非對稱數據業務，並可以提供較高的系統容量，特別是能夠滿足我國一些地區人口密集而頻譜資源緊張的需要。
  18. Such tdrss system can significantly reduce the use of ground - based monitors as well as increasing medium - low orbit coverage, hence enhance the efficiency of the usage of space along medium - low orbit. “ space target capturing and tracking ” ( stct ) is an important technique in data relay satellite system, and is the preliminary requirement to establish the space link. “ performance of analyzing and simulating on tracking receiver in data relay satellite capturing and tracking system ” plays an important role of stct

    數據中繼衛星系統是為中、低軌道的航天器與航天器之間、航天器與地面站之間提供數據中繼、連續跟蹤與軌道測控服務的系統，使用數據中繼衛星可以大量減少地面測控站的數量，增大對中、低軌道的覆蓋率，有效的利用中、低軌道資源。 「星間目標捕獲與跟蹤」是數據中繼衛星系統的一項關鍵技術，是建立星間鏈路的首要條件。
  19. On the study of network traffic performance, this paper presents an approach for calculation the terminal - pair rate when routes may have more than two links and node may block. the method can be embedded in the recursion method for analyzing the performance of nonsidering the called - busying

    對于網路業務性能的研究，本文提出了一種計算多鏈路路由和節點可能擁塞下的節點對業務接通率的方法，此方法可嵌入到迭代法用於分析無級網、有級網，在考慮被叫忙時的整個網路的業務性能。
  20. Fortunately, a novel creative technology, namely multiple - input multiple - output ( mimo ), has provided an innovative solution to this problem. mimo technology utilizes multiple antennas at both transmit and receive ends of the radio link to multiply the capacity and reliability by fully exploiting the space resource within the same frequency band at no additional power expenditure

    可幸的是，多入多出（ mimo ）無線通信技術為解決該問題提供了全新的途徑，它在無線鏈路收發兩端均採用多天線，充分開發空間資源，在無需增加頻譜資源和發射功率的情況下，成倍地提升了通信系統的容量與可靠性。
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