Optimized Routing Algorithm for Latency Difference Between Work and Backup Paths in Power Optical Networks Based on Risk Balance
In order to solve the problem that the existing routing algorithm can nottake into account both the protection requirements of power communication services and the elastic optical network routing and spectral allocation,a mathematical model for the work and backup routing of optical power communication networkhas been proposed.The proposed model accurately describes the optimization goals and constraints of the work and backup routing conditions,such as the latency difference of the work and backup paths,the risk balance of the whole network,etc.Then,based on this mathematical model,an optimal routing algorithm based on risk balance for backup and work routes is presented.The algorithm is designed to find a pair of backup dual routes with low latency and balanced risk for power communication services.The experimental results demonstrate thatthe proposed algorithm can not only ensure a lower delay difference and blocking rate between the work and backup paths when allocating primary and backup routes for business,but also perform excellently in risk balance.The risk balance value is the lowest.
power communications optical networkwork and backup path latency differencerisk balance
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