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5G networks are supposed to offer a high flexibility in a several ways. In this regard, a twofold split of the processing in the radio access network is under discussion: A control plane / user plane split to support the software defined networking principle and a radio protocol stack layer based split to allow a flexible placement of processing functions between a central and distributed units. In...
Network slicing addresses the deployment of multiple logical networks as independent business operations on a common physical infrastructure. The concept has initially been proposed for the 5th Generation (5G) core network (CN) however, it has not been investigated yet what network slicing would represent to the design of the 5G radio access network (RAN). The paper explains how network slicing may...
Broadband wireless access networks have the potential to fulfil the vision of high-speed ubiquitous Internet access. Due to the unreliability and heterogeneity of the network, operators are particularly challenged to provide "carrier grade" services that ensure a secure, efficient and reliable access to users. This paper provides an overview of these challenges and presents network architecture...
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