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Abstract
Cell-free multiple input multiple output (CF-MIMO) systems improve spectral and energy efficiencies using distributed access points (APs) to provide reliable service across an area
equivalent to multiple conventional cells. This paper presents a novel design and implementation of a CF-MIMO network
leveraging the open radio access network (O-RAN) architecture based testbed to enhance the performance of interference-prone user. The proposed prototype is developed based on open source software components and unlike many other prototypes, our testbed is able to serve commercial 5G user equipment (UE). The RAN intelligent controller (RIC) allows the cell-free (CF) network to access the embedded artificial intelligence and benefit from the network optimisation techniques that O-RAN brings. The
testbed includes an intelligent antenna association xApp which determines the antenna group that serves each UE based on the live key performance measurements. The paper demonstrates the deployment and operation of the CF network and the xApp and discusses how the CF networks can benefit from the O-RAN
architecture.
equivalent to multiple conventional cells. This paper presents a novel design and implementation of a CF-MIMO network
leveraging the open radio access network (O-RAN) architecture based testbed to enhance the performance of interference-prone user. The proposed prototype is developed based on open source software components and unlike many other prototypes, our testbed is able to serve commercial 5G user equipment (UE). The RAN intelligent controller (RIC) allows the cell-free (CF) network to access the embedded artificial intelligence and benefit from the network optimisation techniques that O-RAN brings. The
testbed includes an intelligent antenna association xApp which determines the antenna group that serves each UE based on the live key performance measurements. The paper demonstrates the deployment and operation of the CF network and the xApp and discusses how the CF networks can benefit from the O-RAN
architecture.
Original language | English |
---|---|
Number of pages | 7 |
Journal | IEEE Communications Magazine |
Publication status | Accepted/In press - 2025 |
Bibliographical note
This is an author-produced version of the published paper. Uploaded in accordance with the University’s Research Publications and Open Access policy.Keywords
- Cell-free multiple input multiple output,
- pen radio access network
- key performance measurements
- prototype
Projects
- 2 Active
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REACH - RIC Enabled (CF-)mMIMO for HDD
Grace, D. (Principal investigator), Ahmadi, H. (Co-investigator), Burr, A. G. (Co-investigator), Chu, Y. (Co-investigator), Cumanan, K. (Co-investigator) & Yadav, P. (Co-investigator)
2/10/23 → 31/03/25
Project: Research project (funded) › Research
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YO-RAN
Burr, A. G. (Principal investigator), Ahmadi, H. (Co-investigator) & Grace, D. (Co-investigator)
21/02/23 → 31/03/25
Project: Research project (funded) › Research