backoff 中文意思是什麼
backoff
解釋
倒扣，補償-
Truncated binary exponential backoff
截斷二進制指數退避演算法 -
Afterwards, the thesis goes deep into the study of the fair scheduling issue in manet, and then proposes a new fully distributed, simple yet effective queue backoff weighted fair scheduling algorithm, which can provide service differentiation of the traffic flows while achieving fair access to all mobile nodes
然後，論文深入研究了manet的公平調度問題，並提出了一種全分散式且簡單有效的新型加權排隊退避公平演算法，在改善網路中各結點接入通道公平性的同時，可實現對不同服務等級要求業務的區分服務。 -
Clients automatically try alternate servers ; if all servers are down, clients do exponential backoff to avoid flooding the servers when they come back up
客戶端能自動對每個服務器輪流嘗試連接；如果所有的服務器都出問題了，客戶端會備份結果並暫停與服務器的連接，以免服務器恢復運作時對服務器造成泛洪式攻擊。 -
Rather than worrying about the details of getting something reliably from point a to point b, we believe grid requires services that allow you to " fire and forget " - and let the service take care of that with " retry " and " backoff " and " failovers, " as appropriate
我們不用擔心a點到b點之間可靠性的問題，而是相信網格會要求服務允許我們「開火之後就忘記」讓服務來負責「重試」 、 「備份」和「故障遷移」的工作。 -
In the last part, this paper proposed a different backoff algorithm for dfwmac based on resource estimation. simulation results indicate that the new backoff algorithm can address the above two problems effectively without lose of simplicity
並且針對上述問題，本文在最後部分為dfwmac提出了一種新的基於資源估計的回退演算法，模擬結果表明這種回退機制在不失簡單性的情況下能有效改善tcp吞吐率抖動和不公平問題。 -
Afterwards, the relevant research results and the problems of ad hoc network ' s mac protocols are studied deeply. great attentions are paid to fair scheduling issues and service differentiation. then proposes a fair service differentiation dynamic backoff ( fsddb ) algorithm, which can provide service differentiation of the traffic flows dynamically while achieving fair access to all mobile nodes
著重分析了在adhoc網路下，如何改善通道接入的公平性和提供服務區分等問題，進而提出了一種公平服務區分動態退避演算法（ fsddb ， fairservicedifferentiationdynamicbackoff ） ，目標是實現一種合理有效的適用於adhoc網路中支持qos的通道接入退避演算法，達到公平退避，同時實現服務區分，以提供對傳輸包括實時多媒體業務在內的綜合業務的支持，並且提高adhoc網路通道接入的公平性。 -
Analysis and simulation results show that, compared with the ieee802. 11 binary exponential backoff ( beb ) algorithm and other algorithms that have been employed to address the fairness problem, the proposed qbwf algorithm is simpler and practical. also, by choosing appropriate parameters, the qbwf algorithm can effectively improve the channel access fairness and achieve a preferable trade - off between fairness and throughput
分析與模擬結果表明，與ieee802 . 11標準的二進制指數退避（ beb ）演算法和其它改善通道接入公平性的演算法相比，本文演算法更為簡單實用，且對于合適的參數取值，本文演算法能有效地改善通道接入的不公平性，並能在通道吞吐量的下降和通道接入公平性的改善之間達到一個較好的折衷。 -
Simulation is operated with ns2 under linux, and the simulation results show that, the presented algorithm is simpler and more practical, while it can improve the fairness index of ad hoc network to a large extent compared with the ieee802. 11 binary exponential backoff ( beb ) algorithm. it can make better use of the wireless channel by dynamically adjusting its backoff timer according to the network ' s contest situation. in addition, service differentiation can be achieved among flows with different qos requirements and thus the qos for medium access control in ad hoc network is improved
通過在linux系統下利用networksimulator （ ns2 ）模擬工具對演算法進行計算機模擬分析，結果表明，與ieee802 . 11標準採用的二進制指數退避（ beb ）演算法相比，該文所提演算法更簡單、高效，它能在很大程度上提高adhoc網路通道接入的公平性，並能動態地提供服務區分，保障對多媒體等多種實時業務的傳輸需求，同時，演算法可以根據網路當前具體的競爭激烈情況，動態調整退避時間值，從而提高通道的利用率。 -
At the same time, the application environments and potential applications in commerce require that wireless ad hoc networks should support quality - of - service ( qos ). a qos - aware mac protocol is a key factor for qos supporting components at upper layers. the simple effective and providing service differentiation mac protocols are therefore very important, and the backoff algorithm is the key of restricting mac fairness and providing service differentiation
同時，由於adhoc網路的應用環境以及多媒體業務流在網路中傳輸需求adhoc網路支持qos ，且mac協議是上層各種協議和機制所提供的qos能否得到保障的一個關鍵因素，所以設計一個簡單有效並能提供服務區分的mac協議顯得至關重要，而退避演算法又是制約mac層公平性以及提供服務區分的關鍵之所在。
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