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This paper focuses on energy efficiency aspects and related benefits of RAN-as-a-Service (RANaaS) implementation (using commodity hardware) as architectural evolution of LTE-Advanced networks toward 5G infrastructure. RANaaS is a novel concept introduced recently, which enables the partial centralization of Radio Access Network (RAN) functionalities(More)
The ever-increasing traffic demand is pushing network operators to find new cost-efficient solutions towards the deployment of future 5G mobile networks. The network sharing paradigm was explored in the past and partially deployed. Nowadays, advanced mobile network multi-tenancy approaches are increasingly gaining momentum paving the way towards further(More)
As a chain is as strong as its weakest element, so are the efficiency, flexibility, and robustness of a mobile network, which relies on a range of different functional elements and mechanisms. Indeed, the mobile network architecture needs particular attention when discussing the evolution of 3GPP EPS because it is the architecture that integrates the many(More)
— This paper proposes relay specific self-organized functions to optimize the Donor eNB (DeNB) selection upon alternating load and mobility conditions or when specific donors are out of operation due to failure. Initially, we identify the main parameters that influence such donor selection process introducing the inter-DeNB handover and the re-configuration(More)