Graduate School and Research Center in Digital Sciences

FlexVRAN: A flexible controller for virtualized RAN over heterogeneous deployments

Schmidt, Robert; Chang, Chia-Yu; Nikaein, Navid

ICC 2019, 53rd IEEE International Conference on Communications, 20-24 May 2019, Shanghai, China

Alongside the mobile network evolution toward the fifth generation (5G) era, it is expected that the radio access network (RAN) will be the most challenging technology domain to serve multiple service requirements. Specifically, three critical aspects are particularly emphasized: (i) heterogeneous RAN deployments, (ii) RAN functional splits between disaggregated entities, and (iii) sliced RAN for multiple services. To synthesize these three different aspects, a unified and customizable control framework is needed to serve both needs of infrastructure provider and slice owner. To this end, we propose the FlexVRAN control framework as an extension to our previous work to provide a two-level abstraction scheme between the underlying physical infrastructures, logical base stations (BSs), and slicespecific virtual BSs. We present a proof-of-concept prototype of the proposed FlexVRAN over the OpenAirInterface (OAI) and FlexRAN platforms, and the evaluation results show the applicability and feasibility of software-defined RAN control over heterogeneous deployments in support of network slicing.

Document Doi Bibtex

Title:FlexVRAN: A flexible controller for virtualized RAN over heterogeneous deployments
Department:Communication systems
Eurecom ref:5835
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Bibtex: @inproceedings{EURECOM+5835, doi = {}, year = {2019}, title = {{F}lex{VRAN}: {A} flexible controller for virtualized {RAN} over heterogeneous deployments}, author = {{S}chmidt, {R}obert and {C}hang, {C}hia-{Y}u and {N}ikaein, {N}avid}, booktitle = {{ICC} 2019, 53rd {IEEE} {I}nternational {C}onference on {C}ommunications, 20-24 {M}ay 2019, {S}hanghai, {C}hina}, address = {{S}hanghai, {CHINA}}, month = {05}, url = {} }
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