Cell-free mMIMO Support in the O-RAN Architecture: A PHY Layer Perspective for 5G and Beyond Networks

Vida Ranjbar; Adam Girycki; Md Arifur Rahman; Sofie Pollin; Marc Moonen; Evgenii Vinogradov

doi:10.1109/MCOMSTD.0001.2100067

Cell-free mMIMO Support in the O-RAN Architecture: A PHY Layer Perspective for 5G and Beyond Networks

Networking and Internet Architecture 2023-01-26 v1 Systems and Control Signal Processing Systems and Control

Authors: Vida Ranjbar , Adam Girycki , Md Arifur Rahman , Sofie Pollin , Marc Moonen , Evgenii Vinogradov

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Abstract

To keep supporting next-generation requirements, the radio access infrastructure will increasingly densify. Cell-free (CF) network architectures are emerging, combining dense deployments with extreme flexibility in allocating resources to users. In parallel, the Open Radio Access Networks (O-RAN) paradigm is transforming RAN towards an open, intelligent, virtualized, and fully interoperable architecture. This paradigm brings the needed flexibility and intelligent control opportunities for CF networking. In this paper, we document the current O-RAN terminology and contrast it with some common CF processing approaches. We then discuss the main O-RAN innovations and research challenges that remain to be solved.

Keywords

cell-free network massive mimo o-ran radio access network physical layer 5g

Cite

@article{arxiv.2301.10429,
  title  = {Cell-free mMIMO Support in the O-RAN Architecture: A PHY Layer Perspective for 5G and Beyond Networks},
  author = {Vida Ranjbar and Adam Girycki and Md Arifur Rahman and Sofie Pollin and Marc Moonen and Evgenii Vinogradov},
  journal= {arXiv preprint arXiv:2301.10429},
  year   = {2023}
}

Cell-free mMIMO Support in the O-RAN Architecture: A PHY Layer Perspective for 5G and Beyond Networks

Abstract

Keywords

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