[外文翻譯]基于高效隊列的EPON動態(tài)帶寬分配方案/Efficient Queue Based Dynamic Bandwidth Allocation Scheme for Ethernet PONs
內(nèi)包含中文翻譯和英文原文，內(nèi)容完善，建議下載閱覽。

①中文頁數(shù)7

中文字?jǐn)?shù)5554

②英文頁數(shù)10

英文字?jǐn)?shù)3412

③ 摘要
我們提出一種以光線路終端（ OLT ）為中心的動態(tài)帶寬分配（ DBA ）方案來認(rèn)識以太網(wǎng)無源光網(wǎng)絡(luò)（ EPON ），該方案是基于光網(wǎng)絡(luò)單元中服務(wù)隊列的用戶請求等級來保證服務(wù)質(zhì)量（ QoS ）。我們以服務(wù)水平協(xié)議（ SLA ）來實現(xiàn)不同服務(wù)等級間提供公平的動態(tài)帶寬分配。被提議的DBA方案的目的是利用輕負(fù)載隊列的剩余帶寬在重負(fù)載隊列的帶寬需求進(jìn)行重新分配。為了實施這一方案，一個有效的輪詢機(jī)制納入解決閑置時間的問題。此外，為了減少調(diào)度開銷，該DBA方案利用了一種不同的新型輪詢的方案，它基于一定得時延范圍內(nèi)有選擇性將帶寬分配給不同的服務(wù)等級。我們進(jìn)行精細(xì)的仿真實驗，并將仿真結(jié)果與基于授權(quán)請求的自適應(yīng)循環(huán)周期時間的交織輪詢方案(IPACT)進(jìn)行比較，得出采用嚴(yán)格的優(yōu)先權(quán)策略。

We propose an Optical Line Terminal (OLT) centric Dynamic Bandwidth Allocation (DBA) scheme based on individual requests from service queues in Optical Network Units (ONUs) for a Quality-of-Service (QoS) aware Ethernet Passive Optical Network (EPON). The goal is to provide fairness for allocating bandwidth among different service classes based on their Service Level Agreements (SLAs). The proposed DBA scheme makes use of the excess bandwidth of lightly loaded queues to meet the bandwidth demand of heavily loaded queues. To implement this scheme, an effective polling mechanism is incorporated to solve the idle period problem. In addition, to reduce the scheduling overhead, the DBA scheme utilizes a novel different cycle policy which involves selective bandwidth allocations to different service classes based on their delay bounds. We conduct detailed simulation experiments and compare the results with the well-known Interleaved Polling with Adaptive Cycle Time (IPACT) algorithm that utilizes strict priority policy.
Index Terms— Bandwidth allocation, Ethernet passive optical network.


④關(guān)鍵字 帶寬分配/Bandwidth alloc