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基于頻譜感知的業(yè)務(wù)分割-合并的彈性光網(wǎng)絡(luò)資源分配策略

劉煥淋 徐一帆 陳勇

劉煥淋, 徐一帆, 陳勇. 基于頻譜感知的業(yè)務(wù)分割-合并的彈性光網(wǎng)絡(luò)資源分配策略[J]. 電子與信息學(xué)報(bào), 2016, 38(4): 892-898. doi: 10.11999/JEIT150842
引用本文: 劉煥淋, 徐一帆, 陳勇. 基于頻譜感知的業(yè)務(wù)分割-合并的彈性光網(wǎng)絡(luò)資源分配策略[J]. 電子與信息學(xué)報(bào), 2016, 38(4): 892-898. doi: 10.11999/JEIT150842
LIU Huanlin, XU Yifan, CHEN Yong. Spectrum-aware Traffic Split-Merge Resource Allocation Strategy for Elastic Optical Networks[J]. Journal of Electronics & Information Technology, 2016, 38(4): 892-898. doi: 10.11999/JEIT150842
Citation: LIU Huanlin, XU Yifan, CHEN Yong. Spectrum-aware Traffic Split-Merge Resource Allocation Strategy for Elastic Optical Networks[J]. Journal of Electronics & Information Technology, 2016, 38(4): 892-898. doi: 10.11999/JEIT150842

基于頻譜感知的業(yè)務(wù)分割-合并的彈性光網(wǎng)絡(luò)資源分配策略

doi: 10.11999/JEIT150842
基金項(xiàng)目: 

國(guó)家自然科學(xué)基金(61275077),重慶市教委自然科學(xué)基金(KJ1140421)和重慶市科委自然基金(2015jcyjA40024)

Spectrum-aware Traffic Split-Merge Resource Allocation Strategy for Elastic Optical Networks

Funds: 

The National Natural Science Foundation of China (61275077), The Scientific Research Fund of Chongqing Municipal Commission (KJ1140421), The Basic and Frontier Research Program of Chongqing (2015jcyjA40024)

  • 摘要: 針對(duì)彈性光網(wǎng)絡(luò)中業(yè)務(wù)分割的資源分配策略消耗更多保護(hù)帶與設(shè)備端口,浪費(fèi)頻譜資源和增加網(wǎng)絡(luò)能耗的問(wèn)題,該文提出一種頻譜感知的業(yè)務(wù)分割再合并的資源分配策略。為新業(yè)務(wù)分配頻譜資源時(shí),先計(jì)算路徑上總鏈路剩余頻譜連續(xù)度,選擇使剩余頻譜連續(xù)度最大頻譜塊傳輸業(yè)務(wù);當(dāng)路徑上頻隙數(shù)不滿足業(yè)務(wù)傳輸需求空閑頻譜塊時(shí),將該業(yè)務(wù)分割為多個(gè)子業(yè)務(wù),盡可能選取使剩余頻譜連續(xù)度最大的多個(gè)頻譜塊承載各子業(yè)務(wù)。當(dāng)監(jiān)視到子業(yè)務(wù)傳輸路徑上有可用頻隙數(shù)滿足業(yè)務(wù)傳輸所需空閑頻譜塊時(shí),計(jì)算剩余頻譜連續(xù)度作為子業(yè)務(wù)合并觸發(fā)的判決條件,將子業(yè)務(wù)再合并后繼續(xù)傳輸。仿真結(jié)果表明該文提出的策略能有效降低網(wǎng)絡(luò)的帶寬阻塞率,并節(jié)約網(wǎng)絡(luò)的能耗。
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出版歷程
  • 收稿日期:  2015-07-13
  • 修回日期:  2015-12-08
  • 刊出日期:  2016-04-19

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