Towards an ICN Approach to QoS in a Dynamic Edge Environment

Quality of Service (QoS) provisioning and fulfilment is dependent on content recognition, which is not supported natively in IP host-centric networks. Information Centric Networking (ICN) provides content-based delivery, but QoS concerns are not sufficiently addressed. This paper extends the Named-Data Network (NDN), a variant of ICN, focusing particularly on data delivery deadline awareness. The new algorithms classify the priority of requests, with associated QoS requirements, by encoding QoS information into the interest request packets and corresponding data reply packets. The routing algorithm is extended to use multihop forwarding to efficiently request and receive the requested content without pre building routes. Experiments measure end-to-end data delivery response time in a simulated vehicular network, and compare against NDN and IP baselines. Results indicate that the QoS-Aware NDN algorithms perform consistently better at successfully delivering packets within deadline, relative to default NDN and the IP protocol.