本文關(guān)鍵詞：基于距離自適應(yīng)和有效共享路徑感知的光疏導(dǎo)方法　出處：《電子與信息學(xué)報》2015年08期 　論文類型：期刊論文

  更多相關(guān)文章： 靈活網(wǎng)格光網(wǎng)絡(luò) 光路環(huán) 光疏導(dǎo) 共享路徑感知

【摘要】：針對靈活網(wǎng)格光網(wǎng)絡(luò)中如何節(jié)約轉(zhuǎn)發(fā)器與頻譜資源的問題,該文研究了多點到多點組播業(yè)務(wù)的光路環(huán)路由機制,提出一種基于距離自適應(yīng)和有效共享路徑感知的光疏導(dǎo)方法。通過設(shè)計一種基于距離自適應(yīng)的預(yù)處理機制,該疏導(dǎo)方法能根據(jù)業(yè)務(wù)成員節(jié)點的分布特點和距離自適應(yīng)準(zhǔn)則靈活地為業(yè)務(wù)構(gòu)建光路環(huán);在路由與頻譜分配階段,該疏導(dǎo)方法通過構(gòu)造一個面向光疏導(dǎo)的業(yè)務(wù)決策矩陣和一個優(yōu)先調(diào)度向量,將業(yè)務(wù)疏導(dǎo)到與當(dāng)前業(yè)務(wù)具有有效共享路徑最多的已路由業(yè)務(wù)上,并優(yōu)先分配所需的頻譜空間以提高光疏導(dǎo)的成功率,實現(xiàn)節(jié)約轉(zhuǎn)發(fā)器與頻譜資源的目的。仿真結(jié)果表明,該文提出的光疏導(dǎo)方法可以有效地減少業(yè)務(wù)消耗的轉(zhuǎn)發(fā)器數(shù)目和子載波數(shù)目。
[Abstract]:To solve the problem of how to save transponder and spectrum resources in flexible grid optical networks, this paper studies the optical loop routing mechanism of multicast services. An optical grooming method based on distance adaptation and effective shared path awareness is proposed, and a preprocessing mechanism based on distance adaptation is designed. The grooming method can flexibly construct optical loop for traffic according to the distribution characteristics of service member nodes and distance adaptive criterion. In the phase of routing and spectrum allocation, the grooming method constructs a traffic decision matrix and a priority scheduling vector for optical grooming. The traffic is groomed to the routing service which has the most effective shared paths with the current service, and the required spectrum space is allocated first to improve the success rate of the optical grooming. The simulation results show that the proposed optical grooming method can effectively reduce the number of transponders and subcarriers consumed by traffic.
【作者單位】： 重慶郵電大學(xué)光纖通信技術(shù)重點實驗室;重慶郵電大學(xué)自動化學(xué)院;
【基金】：重慶市教委自然科學(xué)基金(KJ1140421) 重慶市科委自然基金(2013jcyj A40052,2011jj A1361) 國家自然科學(xué)基金(61275077,61371096)資助課題
【分類號】：TN929.1
【正文快照】： 2(重慶郵電大學(xué)自動化學(xué)院重慶400065)1引言隨著數(shù)字廣播、物聯(lián)網(wǎng)和云計算等多播應(yīng)用需求的增長,光網(wǎng)絡(luò)面臨著業(yè)務(wù)流量爆炸式增長所帶來的巨大挑戰(zhàn)和壓力,光網(wǎng)絡(luò)的轉(zhuǎn)發(fā)器資源等也日益緊缺[1-3]。目前光網(wǎng)絡(luò)綠色節(jié)能的路由傳輸研究主要集中于波分復(fù)用光網(wǎng)絡(luò)中[4,5],而基于光正

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 劉煥淋;方強;雷芳;;WDM光網(wǎng)絡(luò)中多播業(yè)務(wù)量疏導(dǎo)方法分析[J];重慶郵電大學(xué)學(xué)報(自然科學(xué)版);2012年03期

2 徐展琦;王靖;徐博;丁U，

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