Research in 6G Wireless Communication Systems in the Department of Informatics - AUEB

Researchers from the Mobile Multimedia Lab (MMLab) of the Department of Informatics - AUEB achieved admission of 2 papers in the top conference in Computer Communications IEEE International Conference on Computer Communication (IEEE INFOCOM), to be held in May 2021. The conference has acceptance rate 16-18%. It is worth noting that these two will be the only conference works from Greece.

The first paper is entitled "Blind optimal user association in small-cell networks" and proposes innovative methods for optimal service of the massive information demand (eg. For video) in various locations, through its dynamic assignment to access points. The proposed algorithms gradually build knowledge of the amounts of information required per location and use this knowledge to adjust their assignment to access points to minimize latency. Finally, in the long run, the best access point assignment policy is learned.

The work uses Machine Learning and Artificial Intelligence techniques and was performed in collaboration with researchers from Huawei Research in France and Amazon Research Lab in Luxembourg. The AUEB team consists of Ph.D. candidate Livia-Elena Chatzieleftheriou and Assoc. Professor Iordanis Koutsopoulos. More details at .

The second paper is entitled "The impact of baseband functional splits on resource allocation in 5G Radio access networks". The paper proposes new flexible network management policies for Centralized Radio Access Network (C-RAN) architectures, in which all computations required to transmit information over a large wireless cellular system are performed centrally in a data center.

The work proposes a fundamental change in the above architecture: the appropriate splitting of the required computiation burden between the Data Center and each remote cell in order to minimize the average delay in sending information to the user. Achieving low latency paves the way for the widespread use of many applications that require low latency and high computational load to move massive amounts of information over wireless networks, such as high-definition video or panoramic video (360-gegree video), 3D teleportation for Augmented Reality applications, and others. The study was conducted by Assoc. Professor Iordanis Koutsopoulos.

Related publications:

  • L. Chatzieleftheriou, A. Destounis, G. Paschos and I. Koutsopoulos, “Blind optimal user association in small-cell networks”, Proceedings of IEEE INFOCOM, 2021.
  • I Koutsopoulos, “The impact of baseband functional splits on resource allocation in 5G Radio access networks: Proceedings of IEEE INFOCOM, 2021.

Last updated: 2 February 2021