Results 61 to 70 of about 4,212 (181)
Digital Communications and NetworksUnmanned Aerial Vehicles (UAVs) have been considered to have great potential in supporting reliable and timely data harvesting for Sensor Nodes (SNs) from an Internet of Things (IoT) perspective.
Linlin Xu +5 more
doaj +1 more source
Cell-Free Millimeter-Wave Massive MIMO Systems With Limited Fronthaul Capacity
IEEE Access, 2019 Network densification, massive multiple-input multiple-output (MIMO), and millimeter-wave (mmWave) bands have recently emerged as some of the physical layer enablers for the future generations of wireless communication networks (5G and beyond).
Guillem Femenias, Felip Riera-Palou
doaj +1 more source
IEEE Access, 2020 Digital radio-over-fibre transmission has been studied extensively as a way of providing seamless last-mile wireless connectivity by carrying digitised radio frequency (RF) services over broadband optical infrastructures.
Wen Li +5 more
doaj +1 more source
IEEE Photonics Journal, 2022 For the fronthaul link in the fifth-generation (5G) wireless networks, optical fiber is one of the most widely used medium, owing to its large bandwidth and low transmission loss.
Xueyuan Ao +10 more
doaj +1 more source
Fronthaul Quantization as Artificial Noise for Enhanced Secret Communication in C-RAN
, 2017 This work considers the downlink of a cloud radio access network (C-RAN), in which a control unit (CU) encodes confidential messages, each of which is intended for a user equipment (UE) and is to be kept secret from all the other UEs.
Park, Seok-Hwan +2 more
core +1 more source
Joint Time Synchronisation and Localisation Method by TDOA Observation in 5G Networks
IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.This work proposes a method for joint time synchronisation and localisation problems and proposes to obtain the initial values of the alternating iteration algorithm through solving the MVIE problem. The simulations showcase the satisfying positioning accuracy and clock synchronisation accuracy of the proposed method.
Qiao Liu +3 more
wiley +1 more source
Two-Timescale Hybrid Compression and Forward for Massive MIMO Aided C-RAN
, 2019 We consider the uplink of a cloud radio access network (C-RAN), where massive MIMO remote radio heads (RRHs) serve as relays between users and a centralized baseband unit (BBU). Although employing massive MIMO at RRHs can improve the spectral efficiency,
Chen, Xihan +4 more
core +2 more sources
Advanced Photonics Research, Volume 6, Issue 7, July 2025.Optical wireless communications (OWCs) provide a promising alternative to spectrum‐congested microwave wireless communications. Recently, the use of metasurfaces with sub‐wavelength features for dynamic beam steering, beam manipulation, and spatial or optical‐angular‐momentum mode generation, conversion, and multiplexing in OWCs is proposed and ...
Ke Wang +7 more
wiley +1 more source
Graph-based Framework for Flexible Baseband Function Splitting and Placement in C-RAN
, 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
Cooperative Beamforming Design for Multi‐BS Integrated Sensing and Communication Systems
IET 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