Overload-state downlink resource scheduling and its challenges towards 5G networks

Abstract

The growing variety and consumption of the mobile services throughout the cellular networks lead to various challenging issues in radio resource scheduling. To have an apparent perspective over the resource scheduling in real implementation of the next generation cellular networks, it is essential to consider sequences of alternating overload and normal states of the traffic, occurring much in the system. In this paper, we do a performance study of three overload-state schedulers by implementing such a network environment and exploiting the advantages and drawbacks of the compared algorithms. This performance study through the simulation results reveals that the existing overload-state resource scheduling schemes do not satisfy the fifth generation (5G) mobile network's requirements to be more optimized in hard real time fashion. Then, open challenges and potential research directions for resource management in future 5G mobile networks are presented at the end.

5G Emancipation: A Review of the Panacea for an Efficient Communication Growth in the Evolution of Cellular Networks

“…However, the problem of roaming persisted and it requires the base station to be closer to the user for an improved services. The increased bandwidth and protocol necessitated the upgrade of the cellular device and the base station, which in effect added more cost to the carrier 1,2 .…”

“…The positive impact of cellular network evolution has led to an increase in the consumption of mobile services and the continued request for the services often overwhelms the base station. This opens up challenges for resource management in future mobile networks 2 . The resource scheduling schemes for the 1G through 4G could not cope with the influx of request for cellular consumption, therefore, the need for 5G and beyond.…”

“…The introduction of 5G system came with the requirements that can support industry 4.0 and other wide range of application scenarios such as smart cities, high-tech manufacturing, and remote surgery 2 . These requirements are domiciled on network functionalities such as security, mobility, and over load management.…”

“…These requirements are domiciled on network functionalities such as security, mobility, and over load management. 5G's expected performances are peak data rate above 10Gbps, latencies below 1ms, and 500 km/h mobility target, etcetera 2 . These demands cannot be met through a common network settings, hence the exigency to introduce network slicing in 5G, as one of the needs for dynamic spectrum management.…”