In order to address the service fairness issue of traffic in elastic optical networks

considering different-granularityand different-hop services

faimess aware dynamic spectrum allocation schemes were proposed respectively.A novel utility function was introduced to take into consideration the spectrum utilization together with the service unfairness during dynamic spectrum allocation process

thus greatly migitating the overall blocking performance deterioration.Simulation results reveal that the proposed schemesmigitaes service unfairness problem remarkably without significant blocking performance deterioration.