Hasslinger, Gerhard

Ntougias, Konstantinos

Papadias, Constantinos B.

Papageorgiou, Georgios K.

English

The combination of underlay spectrum sharing and coordinated multi-point technologies promises substantial spectral efficiency (SE) gains for 5G cellular networks. In this work, we present a family of simple cooperative mobile edge caching strategies that create joint transmission (JT) opportunities and make use of the non-computational-demanding score-gated least recently used (SG-LRU) caching scheme to achieve high cache hit rate, thus increasing the sum-SE and reducing both the backhaul traffic and the content access latency. In addition, we derive a low-complexity coordinated quality-of-service (QoS) aware resource allocation scheme that maximizes the sum-SE of coordinated beamforming (CBF) under given transmission power per base station, inter-system interference power, and per-user QoS constraints as well as simple alternatives for both CBF and JT. We consider a use case where a cellular network coexists with a fixed satellite service earth station in the 3.7-4.2 GHz C-band. Numerical simulations illustrate the performance gains of the proposed coordinated caching and resource allocation strategies and shed light on the impact of various parameters on their efficiency.</p

Heriot Watt Pure

Spectral coexistence of 5G networks and satellite communication systems enabled by coordinated caching and QoS-aware resource allocation

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Crossref

Spectral Coexistence of 5G Networks and Satellite Communication Systems Enabled by Coordinated Caching and QoS-Aware Resource Allocation

https://pureapps2.hw.ac.uk/ws/files/26084050/AAM.pdf

Spectral coexistence of 5G networks and satellite communication systems enabled by coordinated caching and QoS-aware resource allocation

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Heriot Watt Pure

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Heriot Watt Pure