波长路由光网络的波长预分配冲突调度机制

Abstract

A novel wavelength assignment scheme called the wavelength pre-assignment collision schedule (WPCS) is proposed for wavelength-routed networks. The WPCS pre-assigns the wavelength at the forward detection phase, and schedules the potential collision by priority. The potential collision is scheduled at the forward detection phase and the blocking of the wavelength assignment is reduced. Simulation is conducted with several other existing schemes. The numerical results show that WPCS performs better than other schemes in blocking probability under various traffic conditions.OCIS codes: 060.4250, 060.4510.

分布式光网络中基于osnr感知的光波长路径分配机制

“…In the lightwave resource assignment aspect, several mechanisms have been developed such as source-initiated reservation [1] , destination-initiated reservation [1] , first fit (FF) [1] , random fit (RF) [1] , contention detection (CD) [2] , collision-aware first fit (CAFF) [3] , circular wavelengthlist (CWL) [4] , and wavelength pre-assignment collision schedule (WPCS) [5] , among others. However, these schemes mainly focus on bandwidth availability.…”

“…WPCS has been proposed by Hua et al [5] By preassigning the wavelength and scheduling the potential collision in the forward detection phase, the WPCS can alleviate the potential collision to a low extent [5] .…”