Publication:
FlexDRAN: Flexible centralization in disaggregated radio access networks

Loading...
Thumbnail Image
Identifiers
Publication date
2022-01-21
Defense date
Advisors
Tutors
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE
Impact
Google Scholar
Export
Research Projects
Organizational Units
Journal Issue
Abstract
Radio Access Network (RAN) disaggregation allows operators to mix-and-match multivendor components and bring RAN services from one end to the other. Despite this goal, issues of resource misuse or performance undershoot may arise because of inflexible RAN function deployment and uncoordinated decision-making across different network segments. To address these issues, this paper considers full flexibility in the synthesis of end-to-end RAN services from a set of disaggregated and uncoordinated components. In particular, five design factors are jointly considered to maximize the overall network spectral efficiency: (1) User association, (2) Remote radio unit clustering, (3) RAN functional split, (4) Fronthaul network routing, and (5) Baseband unit placement. To efficiently deal with the formulated problem, we propose a two-level turbo-based solution and compare its performance with several related works. The simulation results show that our proposed solution can not only achieve a 1.33-times spectral efficiency gain compared with state-of-the-art methods, but also provides 1.27 and 1.74 multiplexing benefits for computing and networking resources, respectively.
Description
Keywords
Radio access networks, 5G mobile communication, Algorithm design and analysis, Disaggregated network, Functional split
Bibliographic citation
Chang, C. Y., Nikaein, N., Spyropoulos, T. & de Schepper, K. (2022). FlexDRAN: Flexible Centralization in Disaggregated Radio Access Networks. IEEE Access, 10, 11789–11808.