Channel Access Reservation Strategies for Wireless Real-time Systems

Efficient resource reservations play a vital role in providing acceptable performance and Quality of Service (QoS) guarantees (e.g., timeliness) in wireless real-time applications such as mobile media streaming. However, the computation of the resource requirements of a wireless node have been widely ignored so far, which has often resulted in degraded support for real-time traffic and overprovisioning of scarce network resources. This work addresses this issue by presenting strategies for wireless nodes to determine minimal resource reservations that guarantee the real-time constraints of their traffic. In addition, this paper examines the relationship between timeliness constraints (i.e., deadlines) of the generated traffic and resource requirements.