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基于距離自適應(yīng)和有效共享路徑感知的光疏導(dǎo)方法

劉煥淋,  歲蒙,  徐一帆,  陳勇,  張盛峰

劉煥淋, 歲蒙, 徐一帆, 陳勇, 張盛峰. 基于距離自適應(yīng)和有效共享路徑感知的光疏導(dǎo)方法[J]. 電子與信息學(xué)報(bào), 2015, 37(8): 1964-1970. doi: 10.11999/JEIT141442
引用本文: 劉煥淋, 歲蒙, 徐一帆, 陳勇, 張盛峰. 基于距離自適應(yīng)和有效共享路徑感知的光疏導(dǎo)方法[J]. 電子與信息學(xué)報(bào), 2015, 37(8): 1964-1970. doi: 10.11999/JEIT141442
Liu Huan-lin, Sui Meng, Xu Yi-fan, Chen Yong, Zhang Sheng-feng. Method of Optical Grooming for Distance-adaptive and Effective Sharing Path-aware[J]. Journal of Electronics & Information Technology, 2015, 37(8): 1964-1970. doi: 10.11999/JEIT141442
Citation: Liu Huan-lin, Sui Meng, Xu Yi-fan, Chen Yong, Zhang Sheng-feng. Method of Optical Grooming for Distance-adaptive and Effective Sharing Path-aware[J]. Journal of Electronics & Information Technology, 2015, 37(8): 1964-1970. doi: 10.11999/JEIT141442

基于距離自適應(yīng)和有效共享路徑感知的光疏導(dǎo)方法

doi: 10.11999/JEIT141442
  • 1.

    (重慶郵電大學(xué)光纖通信技術(shù)重點(diǎn)實(shí)驗(yàn)室 重慶 400065) ②(重慶郵電大學(xué)自動化學(xué)院 重慶 400065)

基金項(xiàng)目: 

重慶市教委自然科學(xué)基金(KJ1140421)，重慶市科委自然基金(2013jcyjA40052, 2011jjA1361)和國家自然科學(xué)基金(61275077, 61371096)

Method of Optical Grooming for Distance-adaptive and Effective Sharing Path-aware

  • 1.

    (Key Laboratory of Optical Fiber Communication, Chongqing University of Posts and Telecommunications,Chongqing 400065, China)

  • 2.

    (School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China)

  • 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(diǎn)到多點(diǎn)組播業(yè)務(wù)的光路環(huán)路由機(jī)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(jì)一種基于距離自適應(yīng)的預(yù)處理機(jī)制，該疏導(dǎo)方法能根據(jù)業(yè)務(wù)成員節(jié)點(diǎn)的分布特點(diǎn)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(gè)面向光疏導(dǎo)的業(yè)務(wù)決策矩陣和一個(gè)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(shí)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: In order to address the problem of reducing the resources of transponder and spectrum in flexible grid optical networks, a lightpath circle mechanism is studied for many-to-many multicast requests, and a method of optical grooming is proposed based on distance-adaptive and effective sharing path-aware. By designing a strategy of traffic pre-processing based on distance-adaptive, a lightpath circle is constructed according to the distribution characteristics?of member nodes and the distance-adaptive criterion in the proposed method. In the process of routing and spectrum allocation, by constructing a decision matrix oriented optical grooming and a priority scheduling vector, the multicast request is groomed into the established traffic with the highest effective sharing links. Moreover, the appropriate spectrum resources are allocated for the groomed requests to increase the success rates of grooming and to save the resources of transponder and spectrum. Simulation results show that the proposed method can significantly reduce the number of traffic consumed transponders and sub-carriers.
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出版歷程
  • 收稿日期:  2014-11-20
  • 修回日期:  2015-04-15
  • 刊出日期:  2015-08-19

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