基于距離自適應和有效共享路徑感知的光疏導方法
doi: 10.11999/JEIT141442 cstr: 32379.14.JEIT141442
-
1.
(重慶郵電大學光纖通信技術(shù)重點實驗室 重慶 400065) ②(重慶郵電大學自動化學院 重慶 400065)
基金項目:
重慶市教委自然科學基金(KJ1140421)，重慶市科委自然基金(2013jcyjA40052, 2011jjA1361)和國家自然科學基金(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)務的光路環(huán)路由機制，提出一種基于距離自適應和有效共享路徑感知的光疏導方法。通過設計一種基于距離自適應的預處理機制，該疏導方法能根據(jù)業(yè)務成員節(jié)點的分布特點和距離自適應準則靈活地為業(yè)務構(gòu)建光路環(huán)；在路由與頻譜分配階段，該疏導方法通過構(gòu)造一個面向光疏導的業(yè)務決策矩陣和一個優(yōu)先調(diào)度向量，將業(yè)務疏導到與當前業(yè)務具有有效共享路徑最多的已路由業(yè)務上，并優(yōu)先分配所需的頻譜空間以提高光疏導的成功率，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，該文提出的光疏導方法可以有效地減少業(yè)務消耗的轉(zhuǎn)發(fā)器數(shù)目和子載波數(shù)目。
-
關鍵詞:
- 靈活網(wǎng)格光網(wǎng)絡 /
- 光路環(huán) /
- 光疏導 /
- 共享路徑感知
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. -
Pags A, Perell J, Spadaro S, et al.. Optimal route, spectrum, and modulation level assignment in split-spectrum-enabled dynamic elastic optical networks[J]. Journal of Optical Communications and Networking, 2014, 6(2): 114-126. Wang Yang, Cao Xiao-jun, Hu Qian, et al.. Towards elastic and fine-granular bandwidth allocation in spectrum-sliced optical networks[J]. Journal of Optical Communications and Networking, 2012, 4(11): 906-917. 劉煥淋, 方強, 雷芳. WDM光網(wǎng)絡中多播業(yè)務量疏導方法分析[J]. 重慶郵電大學學報(自然科學版), 2012, 24(3): 269-277. Liu Huan-lin, Fang Qiang, and Lei Fang. Analysis of multicast traffic grooming algorithms in WDM mesh networks[J]. Journal of Chongqing University of Posts and Telecommunications (Natural Science Edition), 2012, 24(3): 269-277. Guo Lei, Hou Wei-gang, Wei Xue-tao, et al.. Power efficient grooming based on optical bypass reconfiguration in green optical networks[J]. Optik-International Journal for Light and Electron Optics, 2013, 124(5): 437-445. 劉煥淋, 劉洋, 陳勇, 等. WDM 光網(wǎng)絡中帶寬預留型業(yè)務的時間感知綠色疏導算法[J]. 北京郵電大學學報, 2014, 37(5): 71-74. Liu Huan-lin, Liu Yang, Chen Yong, et al.. Time-aware green grooming algorithm for scheduled traffic in WDM networks[J]. Journal of Beijing University of Posts and Telecommunications, 2014, 37(5): 71-74. Fallahpour A, Beyranvand H, Nezamalhosseini S A, et al.. Energy efficient routing and spectrum assignment with regenerator placement in elastic optical networks[J]. Journal of Lightwave Technology, 2014, 32(10): 2019-2027. El-Gorashi T E H, Dong X, and Elmirghani J M H. Green optical orthogonal frequency-division multiplexing networks [J]. IET Optoelectronics, 2014, 8(3): 137-148. Christodoulopoulos K, Tomkos I, and Varvarigos E A. Elastic bandwidth allocation in flexible OFDM-based optical networks[J]. Journal of Lightwave Technology, 2011, 29(9): 1354-1366. Zhang Shu-qiang, Martel C, and Mukherjee B. Dynamic traffic grooming in elastic optical networks[J]. IEEE Journal on Selected Areas in Communications, 2013, 31(1): 4-12. 吳凡, 毛玉明, 黃曉燕, 等. OFDMA 系統(tǒng)中最優(yōu)能效功率分配[J]. 電子與信息學報, 2014, 36(7): 1673-1679. Wu Fan, Mao Yu-ming, Huang Xiao-yan, et al.. Optimal energy-efficient power allocation in OFDMA system[J]. Journal of Electronics Information Technology, 2014, 36(7): 1673-1679. Eira A, Santos J, Pedro J, et al.. Multi-objective design of survivable flexible-grid DWDM networks[J]. Journal of Optical Communications and Networking, 2014, 6(3): 326-339. Khodashenas P S, Comellas J, Spadaro S, et al.. Using spectrum fragmentation to better allocate time-varying connections in elastic optical networks[J]. Journal of Optical Communications and Networking, 2014, 6(5): 433-440. Ye Z, Patel A N, Ji P N, et al.. Distance-adaptive and fragmentation-aware optical traffic grooming in flexible grid optical networks[C]. Proceedings of OptoElectronics and Communication Conference and Australian Conference on Optical Fiber Technology (OECC/ACOFT), Melbourne, 2014: 355-356. Xu Zhan-qi, Wang Jing, Xu Bo, et al.. Modelling and heuristic algorithms for routing and spectrum assignment in elastic optical networks[J]. Acta Photonica Sinica, 2014, 43(7): 0706004-1-0706004-5. Saleh M A and Kamal A E. Many-to-many traffic grooming in WDM networks[J]. Journal of Optical Communications and Networking, 2009, 1(5): 376-391. Saleh M A and Kamal A E. Design and provisioning of WDM networks with many-to-many traffic grooming[J]. IEEE/ ACM Transactions on Networking, 2010, 18(6): 1869-1882. Guo Lei, Hou Wei-gang, Zheng Ze-yu, et al.. Green provisioning of many-to-many sessions over WDM optical networks[J]. Journal of Lightwave Technology, 2013, 31(20): 3289-3301. Shachnai H, Voloshin A, and Zaks S. Optimizing bandwidth allocation in flex-grid optical networks with application to scheduling[C]. Proceedings of the IEEE 28th International Parallel and Distributed Processing Symposium (IPDPS), Phoenix, 2014: 862-871. -
計量
- 文章訪問數(shù): 1309
- HTML全文瀏覽量: 94
- PDF下載量: 419
- 被引次數(shù): 0
下載:
