Results 71 to 80 of about 4,455 (198)

Downlink Power Control for Cell‐Free Massive MIMO System With Radio Stripes

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This paper investigates downlink power control in cell‐free massive multiple‐input multiple‐output systems utilizing radio stripes, a cost‐effective fronthaul topology. An AP switching technique is proposed to enhance spectral efficiency, followed by the formulation of a weighted sum‐rate maximization problem considering QoS, transmit power, and user ...
Yisong Fu, Linlin Xu, Yijie Chen, Wenchao Xia   +3 more
wiley   +1 more source

Sequential In-Network Processing for Cell-Free Massive MIMO With Capacity-Constrained Parallel Radio Stripes

IEEE Access
To ensure coherent signal processing across distributed Access Points (APs) in Cell-Free Massive Multiple-Input Multiple-Output (CF-mMIMO) systems, a fronthaul connection between the APs and a Central Processor (CP) is imperative. We consider a fronthaul
Sangwon Jo, Hoon Lee, Seok-Hwan Park
doaj   +1 more source

Fronthaul-Constrained Cell-Free Massive MIMO With Low Resolution ADCs

IEEE Access, 2020
In cell-free massive MIMO networks, a large number of distributed access points (APs) provide service to a much smaller number of mobile stations (MSs) over the same time/frequency resources.
Guillem Femenias, Felip Riera-Palou
doaj   +1 more source

An improved affinity propagation method for maximising system sum rate and minimising interference for 3D multi‐UAV placement in disaster area

IET Networks, Volume 14, Issue 1, January/December 2025.
In emergency situations where ground base stations are disabled, UAVs, due to their low cost and high adaptability, restore communication coverage in remote areas. The main challenge is optimally determining the three‐dimensional positions of the UAVs to meet dynamic user demand and reduce interference.
Nooshin Boroumand Jazi, Farhad Faghani, Mahmoud Daneshvar Farzanegan   +2 more
wiley   +1 more source

A Transport Scheme for Reducing Delays and Jitter in Ethernet-Based 5G Fronthaul Networks

IEEE Access, 2018
Fronthaul networks are leveraging communication links between the remote radio heads and baseband units in cloud radio access networks, and common public radio interface (CPRI) is an interface to carry time-sensitive traffic over the fronthaul.
Muhammad Waqar, Ajung Kim, Peter K. Cho
doaj   +1 more source

IoT‐5G and B5G/6G resource allocation and network slicing orchestration using learning algorithms

IET Networks, Volume 14, Issue 1, January/December 2025.
In this article, the challenges related to the evolution of 5G and B5G/6G networks are examined more closely. The authors then primarily focus on machine learning solutions for resource allocation in 5G and B5G/6G networks. The requirements for dynamic network slicing orchestration are also analysed.
Ado Adamou Abba Ari, Faustin Samafou, Arouna Ndam Njoya, Assidé Christian Djedouboum, Moussa Aboubakar, Alidou Mohamadou   +5 more
wiley   +1 more source

Flexible Mobile Fronthaul with Coherent UDWDM-PON

2018 20th International Conference on Transparent Optical Networks (ICTON), 2018
Ultra Dense Wavelength Division Multiplexing (UDWDM) has been proposed for future Passive Optical Networks (PONs) to support the increase of access traffic, furnishing an improved capacity while introducing point-to-point logical connections with the Wavelength-To-The-User (WTTU) concept, enabled by low cost coherent transceivers with high sensitivity.
Segarra Mullerat, Josep, Sales Zaragozá, Vicente, Prat Gomà, Josep Joan   +2 more
openaire   +2 more sources

Cell Site Densification Using mmWave and Sub-THz Line-of-Sight Wireless Fronthaul: A Deployment Feasibility Study

IEEE Transactions on Antennas and Propagation
This article presents a mobile network deployment analysis aimed at understanding the use of high-frequency wireless fronthaul links to realize dense cell network architectures.
Dave Townend, Stuart D. Walker, Anvar Tukmanov, Andy Sutton   +3 more
semanticscholar   +1 more source

Joint Weighted Dynamic Resources Optimisation in Green Open Radio Access Network

IET Networks, Volume 14, Issue 1, January/December 2025.
The paper presents an optimisation framework for the off‐grid green open radio access network architecture using renewable energy, aiming to optimise power and bandwidth allocation, ensure high data rates and improve service quality, considering factors like power consumption and maintenance cost. ABSTRACT The rapid growth of interconnected devices and
Raad S. Alhumaima, M. S. Al‐Abadi, Basit N. Khalaf, Riyadh Khlf Ahmed   +3 more
wiley   +1 more source

Quantum teleportation in higher dimension and entanglement distribution via quantum switches

IET Quantum Communication, Volume 6, Issue 1, January/December 2025.
This paper presents a novel theoretical framework for transmitting classical information through entanglement distribution of qudits over two quantum channels in a superposition of causal orders. The authors introduce the first quantum switch operation for 2‐qudit systems and a theoretical model for qudit entanglement distribution via a quantum switch.
Indrakshi Dey, Nicola Marchetti
wiley   +1 more source