buffer n. 1.【機械工程】緩沖器,緩沖墊;阻尼器,減震器;消聲器。 2.【化學】緩沖,緩沖劑。 3.緩沖者;緩沖物;緩沖國(= buffer state〕。 4.〔計算機〕緩沖存儲裝置。 oil buffer【機械工程】油壓減震器。 vt. 1.【化學】用緩沖劑處理。 2.緩和;緩沖;保護;使不利影響減少。 buffer economy by raising interest rates 以提高利率來保護經(jīng)濟。 The drug buffer-ed his pain. 這劑藥減輕了他的病痛。 buffer2 n. 1.【機械工程】拋(光)盤,拋光輪,拋光棒。 2.拋光工人。 n. 1.〔英俚〕無能的人,老派人物。 2.家伙,人。 3.【航?!克諿掌帆]長副手。 He was a bit of buffer. 他有點低能。 an old buffer 老家伙,老糊涂,老朽。
length n. 1.長,長度,長短。 2.(時間的)長短,期間。 3.(賽艇的)一艇的長度;一馬的長度。 4.程度,范圍。 5.【板球】球程;投至適當距離的球。 6.【語言學】音長。 7.一段,一節(jié)。 a dress length, a length of cloth 一段料。 a length of pipe [tubing] 一節(jié)管子。 The boat won by three lengths. 這只艇以三艇長之差得勝。 a (good) length ball 球程準確的球。 at arm's length 在手臂伸得到的地方,疏遠 (keep sb. at arm's length 不與接近,敬而遠之)。 at full length 1. 冗長地;充分地,詳細地 (give all the facts at full length 提供詳細的材料)。 2. 全身平伸地 (lie at full length 挺直身體躺著)。 at great length 冗長地,??唆唆地。 at length 1. 最后,終于,好容易才。 2. 充分地,詳細地 (speak at great length 詳細講了好久)。 at some length 相當詳盡地。 cannot see beyond the length of one's nose 鼠目寸光。 draw out to a great length 拖得很久,占去很長時間。 fall [measure] all one's length 直挺挺地倒下。 find [get, have, know] the length of sb.'s foot 了解某人的弱點。 go (to) all lengths [any length] = go to great lengths 什么事都做得出;不遺余力。 go (to) the length of (doing) 甚至于,不惜。 go the whole length of it. 徹底干;干到底。 length of (sb.'s) days [life] 某人的壽命。 measure one's (own) length 跌倒在地。 of some length 相當長。 over [through] the length and breadth of 到處,四面八方。 work at arm's length 在不利的條件下工作。
4 . a formula for calculating receiving buffer length was proposed , based on the analysis and research on network parameters , such as jitter , average speed and packet loss fraction 4 .在分析研究延時抖動、平均速率和丟包率等網(wǎng)絡參數(shù)的基礎上,給出客戶端接收緩沖區(qū)長度估算公式。
Because of the limit of network resource ( link capacity , buffer length of network node ) and the uncertain of traffic in networks , it should not be avoided that network congestion occurs , and congestion control becomes one of the key technologies in atm networks 由于網(wǎng)絡各類資源(信道容量、節(jié)點中緩存器容量等)的有限性和網(wǎng)絡中各種數(shù)據(jù)流的不可確定性,不可避免地導致了網(wǎng)絡擁塞的產(chǎn)生,使得擁塞控制成為atm網(wǎng)絡亟待解決的關鍵技術之一。
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(qū)大小信元作為擁塞指示,以信源質(zhì)量和帶寬利用率作為目標函數(shù)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(shù)在全部用戶中所占的百分比,即根據(jù)信源編碼率及對應的用戶百分數(shù)調(diào)整信源輸入流,從而克服了以往擁塞控制方法中僅僅調(diào)整編碼率帶來的對所有信源進行整體調(diào)整的缺陷,使控制系統(tǒng)在信元損失率最小情況下確保信源輸入流質(zhì)量最高,從而有效地利用了網(wǎng)絡帶寬。