Quality of Service management in 5G broadband converged networks

In a heterogeneous environment of 4G broadband networks, participating technologies orchestrate their own provisioning for the Quality of Service (QoS) management. As we move towards 5G, those technologies are moving towards a common set of objectives to offer the end users higher capacity, robustness, security, QoS, etc. in a unified and converged manner. In order to provide end-to-end QoS support for application services over the converged networks in 5G, a common QoS framework is proposed. It consists of a two-level scheduling scheme; Priority Queuing (PQ) discipline and Class-Based Weighted Fair Queuing (CBWFQ) discipline in the first level while Deficit Weighted Round Robin (DWRR) discipline is deployed in the second level. Simulation results show a seamless QoS deliverable over a vertical hand-off between LTE and a wireline network, in addition to performance improvements of Real Time (RT) applications when compared to existing scheduling systems.