Enhanced dynamic segment protection in WDM optical networks under reliability constraints

被引:3
作者
Guo, L [1 ]
Cao, J [1 ]
Yu, HF [1 ]
Li, LM [1 ]
机构
[1] Univ Elect Sci & Technol China, Key Lab Broadband Opt Fiber Transmiss & Commun Ne, Chengdu, Peoples R China
关键词
WDM optical networks; path protection; segment protection; differentiated reliability;
D O I
10.4218/etrij.06.0205.0053
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this letter we study the protection problem in wavelength division multiplexing (WDM) optical networks and propose a novel dynamic heuristic algorithm called differentiated reliable segment protection (DRSP). Differing from previous work; DRSP can effectively avoid the trap problem and is able to find a feasible solution for each connection request Therefore, DRSP outperforms the previous work Simulation results have shown to bepromising.
引用
收藏
页码:99 / 102
页数:4
相关论文
共 7 条
  • [1] Joint routing-selection algorithm for a shared path with differentiated reliability in survivable wavelength-division-multiplexing mesh networks
    Guo, L
    Yu, HF
    Li, LM
    [J]. OPTICS EXPRESS, 2004, 12 (11): : 2327 - 2337
  • [2] Shared sub-path protection algorithm in traftic-grooming WDM mesh networks
    He, RX
    Wen, HB
    Li, LM
    Wang, GX
    [J]. PHOTONIC NETWORK COMMUNICATIONS, 2004, 8 (03) : 239 - 249
  • [3] MUKHERJEE B, 1997, OPTICAL COMMUNICATIO
  • [4] New and improved approaches for shared-path protection in WDM mesh networks
    Ou, CH
    Zhang, J
    Zang, H
    Sahasrabuddhe, LH
    Mukherjee, B
    [J]. JOURNAL OF LIGHTWAVE TECHNOLOGY, 2004, 22 (05) : 1223 - 1232
  • [5] Dynamic grooming algorithms for survivable WDM mesh networks
    Wen, HB
    Li, LM
    He, RX
    Yu, HF
    Wang, S
    Song, N
    [J]. PHOTONIC NETWORK COMMUNICATIONS, 2003, 6 (03) : 253 - 263
  • [6] Trap avoidance and protection schemes in networks % with shared risk link groups
    Xu, DH
    Xiong, YZ
    Qiao, CM
    Li, GZ
    [J]. JOURNAL OF LIGHTWAVE TECHNOLOGY, 2003, 21 (11) : 2683 - 2693
  • [7] Shared-path protection algorithm with differentiated reliability in meshed WDM networks
    Yu, HF
    Wen, HB
    Wang, S
    Li, LM
    Xiang, B
    [J]. APOC 2003: ASIA-PACIFIC OPTICAL AND WIRELESS COMMUNICATIONS; NETWORK ARCHITECTURES, MANAGEMENT, AND APPLICATIONS, PTS 1 AND 2, 2003, 5282 : 682 - 687