Abstract
This paper proposes an analytical framework for evaluating the delay performance of super-frame (SF) based MAC schemes with distributed resource reservation in IEEE 802.11e enhanced distributed channel access (EDCA). SF-based resource reservation (RR) schemes divide the airtime into service intervals (SIs) with contention-free period (CFP) for providing guaranteed QoS for RTSNs and contention access period (CAP) for pledging fairness toward other sessions. The proposed analytical framework models the delay performance of RTSNs that obtain dedicated resources in a distributed manner. In addition, the optimization of system parameters, such as size of transmission opportunity (TXOP) and SI are studied in order to enhance the overall network capacity. The accuracy of the analytical framework is verified through numerical simulation and analytical results, which also suggest that the optimum resource allocation and SI can be found for improving the network capacity.
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