Tubitak 1001 (122E497)

Cost-Efficient 6G Radio Access Network
for Internet-of-Everything

Objective:

The fourth industrial revolution is driving a transformation across various sectors by creating digital twins—virtual replicas of physical and non-physical assets. These digital representations offer immense benefits, from reducing manufacturing costs to optimizing infrastructure maintenance, such as water-pipeline systems. However, achieving fully functional digital twins requires continuous data exchange between millions of IoE devices and cloud-based digital shadows, necessitating advanced 6G Radio Access Networks (NG-RANs) for seamless connectivity.

A key challenge in rolling out affordable 6G services is balancing capital (CAPEX) and operational expenses (OPEX). While consumers expect low-cost, high-performance connectivity, service providers seek cost-efficient network deployment and maintenance. To address this, the study proposes a low-cost NG-RAN framework, emphasizing:-

  • Reducing CAPEX by tackling three cost drivers—radio nodes/infrastructure, spectrum pricing, and intelligent network control
  • Minimizing OPEX through automated, zero-touch NG-RAN management
  • Deploying Integrated Access and Backhaul (IAB) nodes, which combine radio access and wireless backhauling, reducing reliance on expensive fiber-based infrastructure.

The proposed solution follows three phases:

  • Developing adaptive NG-RAN architectures with IABs that dynamically respond to traffic fluctuations.
  • Advance the state of the arts pertains mmWave for mobile devices.
  • Enhancing spectrum utilization to support massive connectivity without reducing cell coverage
  • Integrating distributed intelligence at the network for cost-effective and automated NG-RAN operations. This approach aims to create a scalable, low-cost, and intelligent 6G RAN, ensuring widespread and affordable connectivity.

Outcomes

  • The development of novel mmWave techniques for mobile devices to cope with the short channel coherence time and phase noise (validation through experiment)  

                                           Overcome the phase noise and short channel coherence time

 

Experimental validation

  • The design of a new architecture that relies on redundant links to overcome link interruption for mmWave mobile devices

  • The derivation of the theoretical boundary of the Task-Oriented-Communication for massive connectivity

  • The management of distributed NG-RANs

Publications:

[A] M. Chraiti and O. Ercetin, “On the Space/Time Correlation of mmWave AoAs: Concept and Experimental Validation,” in Proc. IEEE WCNC, 2024.

[B] M. Chraiti and O. Ercetin, “On the Efficacy of Fingerprint-Based mmWave Beamforming in NLOS Environments: Experimental Validation,” in Proc. IEEE EUCNC 6G Summit, 2024.

[C] M. Chraiti and O. Ercetin,” Statistical mmWave Beam Codebook Refinement in Highly NLoS Environment with Real-World Measurements Validation”  submitted to IEEE Trans. Signal Process. 2024.

[D] M. Chraiti, O. Ercetin and A. Ghrayeb, “Location-Shift Keying for Resilient mmWave Communications Against Phase Noise and Short Channel Coherence Time,” submitted to IEEE Trans. on Comm. 2025.

[E] M. Chraiti and O. Ercetin,” Perceptual Lossy Compression for Correlated Two-Users Broadcast Channel” submitted to IEEE Trans. on Comm. 2025.

[F] M. Chraiti and O. Ercetin, “Perceptual Lossy Compression for Two Correlated Gaussian Sources,” submitted to IEEE Comm. Letter, 2025.

[G] Ercetin, O., Chraiti, M., and Erciyes Karakaya, R., “Consolidate Viability and Information Theories for Task-Oriented Communications: A Homeostasis Solution”,  arXiv.2311.14917,2023. [Online]. Available: https://arxiv.org/abs/2311.14917

[H] O. Ercetin, M. Chraiti and R. E. Karakay, “Consolidate Viability and Information Theories for Task-Oriented Communications: The Case of Remote Power Plants,” in Proc. IEEE EUCNC 6G Summit, 2024.

[I]  M. Chraiti ” Overcomimg the mmWave Short Coherence time: On the Optimal Placement of Antennas” to be submitted to IEEE Trans. Wireless Comm. 2024.

[K] B. Bozkurt, A. M. Aktas, H. A. Gunel, M. Chraiti, I. Hokelek, and A. Gorcin “Large Beam Codebook Size for MmWave Beam-Steering : How Much is Enough?” Submitted to IEEE Trans. On Comm.

[M] S. Jorjani, M. Chraiti and O. Ercetin,” A Fair Comparison Between OMA and Power Domain NOMA Considering Channel Training Overhead” Manuscript under preparation.

[N] M. Saimler, M. Chraiti, and O. Ercetin,” Energy-Constrained Handover Optimization for Densely Deployed CRAN” To be submitted soon to IEEE Trans. Veh. Tech.

[O] K. Ibrahim, and M. Chraiti” Reinforcing Zero-Trust Security from a Task Compliance Perspective for ORAN system” in Proc. WCNC, 2025.

[J] B. Bozkurt, A. M. Aktas, H. A. Gunel, M. Chraiti, I. Hokelek, and A. Gorcin” Beam Codebook Refinement for mmWave Devices with Random Orientations: Concept and Experimental Validation” in Proc. WCNC, 2024

[L] A. A. Oznam, M. Chraiti, and K. K. Tokgoz” Bandwidth Expansion in N-fold Frequency Multiplier: N or \sqrt{N} ”. Submitted to IEEE Com. Letter.

Presentations:

P1. Consolidate Viability and Information Theories for Task-Oriented Communications: The Case of Remote Power Plants (EUCNC1-2024)

P2. On the Efficacy of Fingerprint-Based mmWave Beamforming in NLOS Environments: Experimental Validation (EUCN2-2024)

P3. On the Space/Time Correlation of mmWave AoAs: Concept and Experimental Validation (WCNC-2024)

P4. On Advancing mmWave Communications for Mobile Devices (IMDEA-Spain-2024)