Overbooking-Based Management of Physical Resource Blocks in 5G Networks

This paper proposes a methodology that enables physical resource blocks (PRBs) in 5G networks to be overbooked among multiple users while diligently satisfying their Quality of Service (QoS) requirements. Our overbooking methodology is guided by a novel optimization framework, which is solved using a Genetic Algorithm (GA). It is shown that, under inherent uncertainties associated with communication processes, our overbooking methodology enhances important performance criteria, such as resource usage efficiency and the number of supported users, beyond what is permitted by traditional approaches that do not allow overbooking. Numerous simulation results under varied considerations have been presented, which show the performance advantages of our proposed mechanism.