固定选路的波分复用全光网中的波长分配算法
WAVELENGTH ASSIGNMENT IN FIXED ROUTING WDM NETWORKS
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摘要: 该文研究了动态业务下,无波长变换的波分复用光传送网采用固定选路时的波长分配问题,提出了一种中心式的波长分配算法-最小影响算法。该算法能精确地描述某个波长的分配对全网状态的影响,因而能够更有效地使用网络资源。计算机仿真表明,如果用阻塞概率来衡量,该波长分配算法优于文献中已有的典型算法。Abstract: In this paper, a heuristic algorithm-least efFect (LE) algorithm is proposed for the dynamic centralized wavelength assignment problem in fixed-routing wavelength division multiplexing (WDM) networks without wavelength conversion. Compared with the previously proposed algorithms, LE algorithm can modei the effect of wavelength assignment on the net-work more accurately. Simulation results show that LE algorithm performs better than those algorithms in the most cases.
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M. Kovacevic, A. S. Acampora, On wavelength translation in all-optical networks, INFOCOM95, Boston, 1995, 413-422.[2]E. Karasan, E. Ayanoglu, Effects of wavelength routing and selection algorithms on wavelength conversion gain in WDM optical networks, IEEE/ACM Trans. on Networking, 1998, 6(2), 186-196.[3]A. Mokhtar, E. Azizoglu, Adaptive wavelength routing in all-optical networks, IEEE/ACM Trans. on Networking, 1998, 6(2), 197-206.[4]S. Subramaniam, R. Barry, Wavelength assignment in fixed-routing WDM networks, ICC97,Montreal Canada, 1997, 406-410. -
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