The open radio access network (O-RAN) concept is changing the landscape of mobile
networks (5G deployment and 6G research). O-RAN Alliance's suggestions that O-RAN can …

Massive surge in mobile data traffic, high power consumption, and limited spectrum
availability are the major challenges of existing cellular networks. Industries and academia …

Hybrid beamforming is known to be a cost-effective and wide-spread solution for a system
with large-scale antenna arrays. This paper studies the optimization of the analog and digital …

In this study, the authors investigate the intra‐physical functional splits of 5G new radio
protocol stack proposed by different groups. Based on the location of the digital …

This work aims to improve the energy efficiency of cloud radio access network (C-RAN).
Power consumption is an important issue in deploying dense small cell networks such as C …

Cloud RAN is a promising enabler for distributed massive MIMO systems, yet is vulnerable
to its fronthaul congestion. We propose an analog beamformer design in pursuit of …

Deployment of hybrid beamforming based massive MIMO C-RAN can lead to significant
improvement in spectral efficiency (SE) and energy efficiency (EE) in mmWave wireless …

Precoder weights can be indicated to a carrier unit to increase network efficiency. To
indicate precoder weights to the carrier unit, various types of precoding data can be used to …

In this paper, we consider the uplink in a cloud radio access network, where analog-
beamforming and resolution-adaptive ADCs are adopted at each the network remote radio …

This paper considers channel estimation problem in massive MIMO partially centralized
cloud-RAN. By noting that the user activities in massive MIMO partially centralized cloud …