Abstract
Named data networking (NDN) is an emerging network architecture for serving content-centric applications, which are intended to support diverse services that require various quality of service (QoS) levels. In this paper, an algorithm based on ant colony optimisation—the so-called service-differentiated QoS routing algorithm (SDQR)—is proposed for service-differentiated routing of different types of services in NDN. SDQR adds a control layer on top of NDN to manipulate the underlying forwarding information base (FIB). The FIB defines an evaluation matrix to achieve differentiated updates on pheromone concentrations for different types of services. Simulation results showed that SDQR achieves service-differentiated routing for different types of services with less delay and higher throughput than several conventional approaches.
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