Maximum bit rate control based on throughput feedback for deadline-aware resource management in cellular networks

Abstract

Delay-sensitive applications over cellular networks, such as road traffic collision avoidance, usually have a deadline constraint within which the data must be delivered. Model-based network resource management may miss the deadline due to model uncertainties of the cellular networks. This letter proposes a deadline-aware resource management method based on maximum bit rate (MBR) control with a feedback controller for delay-sensitive applications. The proposed method treats the model uncertainties as disturbances. The feedback controller maintains the effective throughput at a target level to meet the deadline even if disturbances exist. Numerical simulations demonstrate that the proposed method improves the success rate of data delivery within the deadline constraint in the presence of disturbances.