Results 71 to 80 of about 6,729,286 (226)

Cooperative Beamforming Design for Multi‐BS Integrated Sensing and Communication Systems

open access: yesIET Communications, Volume 19, Issue 1, January/December 2025.
This paper investigates a cooperative multi‐BS ISAC system with multi‐target and multi‐user. In particular, communication and sensing are performed by multiple BSs with a cooperative manner. ABSTRACT Integrated sensing and communication (ISAC) is regarded as a promising paradigm for future sixth‐generation (6G) networks, which effectively improves ...
Peng Wang, Dongsheng Han, Xi Song
wiley   +1 more source

Cognitive RF–FSO Fronthaul Assignment in Cell-Free and User-Centric mMIMO Networks

open access: yesIEEE Transactions on Mobile Computing, 2023
Cell-free massive MIMO (CF-mMIMO) network and its user-centric (UC) version are considered as promising techniques for the next generations of wireless networks. However, fronthaul and backhaul assignments are challenging issues in these networks.
Pouya Agheli, M. Emadi, H. Beyranvand
semanticscholar   +1 more source

All-Optical Network Capacity for 5G Cellular Fronthaul

open access: yes2019 21st International Conference on Transparent Optical Networks (ICTON), 2019
In this paper, we have investigated the use of fast wavelength switching optical transmitters and a wavelength selective space switching all-optical network for cellular fronthaul applications. System capacity is calculated by using hard-deadlines that arise from the radio requirements and the physical constraints of the optical network.
Philip Perry   +5 more
openaire   +2 more sources

UAVs‐Assisted Low‐Bit Quantized CF‐mMIMO Systems With MmWave Communications Under MRC Detection

open access: yesIET Communications, Volume 19, Issue 1, January/December 2025.
ABSTRACT The cell‐free massive multiple input multiple output (CF‐mMIMO) approach, due to its high coverage and the ability to attenuate the large‐scale fading impacts in wireless communications, has drawn a lot of attention. Additionally, because of their movement ability, low power, and low‐cost employed infrastructures, unmanned aerial vehicles ...
Sogol Moshirvaziri, Jamshid Abouei
wiley   +1 more source

Joint Power Control and Fronthaul Rate Allocation for Throughput Maximization in OFDMA-based Cloud Radio Access Network [PDF]

open access: yes, 2015
The performance of cloud radio access network (C-RAN) is constrained by the limited fronthaul link capacity under future heavy data traffic. To tackle this problem, extensive efforts have been devoted to design efficient signal quantization/compression ...
Bi, Suzhi, Liang, Liu, Zhang, Rui
core  

Graph-based Framework for Flexible Baseband Function Splitting and Placement in C-RAN

open access: yes, 2015
The baseband-up centralization architecture of radio access networks (C-RAN) has recently been proposed to support efficient cooperative communications and reduce deployment and operational costs.
Gong, Jie   +4 more
core   +1 more source

Access Point Selection and Localization for Cluster‐Based Realization of a Device‐to‐Device Cell‐Free 6G Communications Network

open access: yesIET Communications, Volume 19, Issue 1, January/December 2025.
We introduce a fully distributed framework that leverages belief‐desire‐intention extended (BDIx) agents on user devices to perform dynamic clustering and access‐point selection in a cell‐free 6G network, using both classical and deep‐learning methods for deterministic, scalable AP grouping.
Iakovos Ioannou   +5 more
wiley   +1 more source

Analysis of Conventional Direct Detection and Coherent Optical Receivers in Optical Access Networks

open access: yesEngineering Proceedings
This study evaluated the use of GFDM transmission in passive optical networks (PONs) by comparing the performance of coherent and non-coherent optical receivers using OptSim 2023.12sp2 and Matlab 2018b ®.
Johanna Berenice Arguero Tello   +3 more
doaj   +1 more source

Optimal dynamic subcarrier allocation for dual-band OFDMA-PON supporting integrated fronthaul and backhaul in 5G networks

open access: yesICT Express, 2018
We propose a novel dynamic subcarrier allocation (DSCA) design for dual-band orthogonal frequency division multiple access passive optical network (DB-OFDMA-PON), supporting integrated fronthaul and backhaul services, given their stringent requirements ...
Yazan M. Allawi   +5 more
doaj   +1 more source

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

open access: yesElectronics 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   +3 more
wiley   +1 more source

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