An admission control mechanism to handle real-time traffic in IEEE 802.11 networks in open communication environments

In this paper we present an admission control mechanism to handle real-time traffic in IEEE 802.11 networks operating in open communication environments. The proposal is based on a non-preemptive EDF scheduling algorithm, combined with a measurement-based mechanism that assesses blockage times on medium access of real-time stations due to retransmissions and delays. This proposal will be part of the upper layer of the RT-WiFi architecture that was proposed by us in previous works. The main goal is to achieve a better compromise between medium utilization and timeliness.