A survivable touting and spectrum assignment algorithm for advanced reservation service requests in elastic optical networks
KONG Lingxing
WANG Yunwu
GU Jiahua
ZHU Min
Abstract：Multi-path protection can effectively enhance the service survivability of light-path requests by transmitting data through multiple disjoint paths.This approach ensures that even if one path fails,the service remains uninterrupted.This paper focuses on the survivability-aware routing,modulation,and spectrum assignment(RMSA)problem in elastic optical network(EON)based on deep reinforcement learning(DRL)for advanced reservation(AR)service requests,where AR requests not only allow for im-mediate allocation of network resources upon arrival but also enable scheduling at a future time,character-ized by advanced reservation and waiting features.To efficiently determine the multi-path routing,modu-lation format,spectrum allocation,and scheduling time for AR service requests,this paper proposes a dy-namic resource allocation algorithm based on DRL.Simulation results on a 14-node network topology demonstrate that the proposed DRL algorithm reduces the blocking probability by as much as 31.9%at 300 Erlangs traffic load.
Keywords：multi-path protectiondeep reinforcement learningelastic optical networks
Publication Date：2026-04-25
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：12( 205-216 )