Research On Real - Time QoS Of Service - Aware Network Based On Network Calculus Theory

The performance of interconnected computer networks is generally evaluatedthrough Quality of Service (QoS) criteria. As the most recent and influential QoS ar-chitecture proposal, Flow-Aware Networking (FAN) has drawn broad attention in bothacademic and application fields of interconnected computer networks.In contrast to the unsatisfying scalability of IntServ in wired backbones and thecoarse service granularity of DiffServ, FAN has been proven to be able to provide ad-equate per-flow service guarantees with good scalability, making it an important ref-erence model for QoS architectures.This dissertation centers on the real-time QoS of FAN in avionics networks andwired-cum-wireless networks. Firstly, AoFAN (resp. WoFAN), i.e., Avionics networks(resp. Wired-cum-wireless networks) over FAN are proposed based on an in-depthstudy of the architecture and key mechanisms of FAN. Then, with analyses of the traf-fic specification and the scheduling mechanism in AoFAN, deterministic NetworkCalculus (NC) is adopted to derive the end-to-end (E2E) delay upper bound of flowsand the backlog upper bound in AoFAN routers. AoFAN are proven to be determinis-tic networks and verification is conducted through simulation on NS2. Finally, sto-chastic NC theory is used to construct the stochastic traffic model and (stochastic)service model for WoFAN, based on which the stochastic E2E delay bounds ofthrough flows in WoFAN are derived. Numerical analyses demonstrate that WoFANcan provide adequate stochastic service guarantees to through flows and realize dif-ferentiation between the file transfer service and the streaming media service.The real-time QoS of FAN explored in this dissertation is original and of valueboth for academic and commercial use. The achievements are expected to have prom-ising applications in fields such as mobile IP, P2P real-time application and streamingmedia transfer.