Results 81 to 90 of about 30,726 (232)
RETRACTED: Resource allocation for integrated satellite‐terrestrial networks based on RSMA
IET Communications, Volume 19, Issue 1, January/December 2025.We first establish a downlink transmission framework for the integrated satellite‐terrestrial network based on RSMA, to achieve high data rate transmission of virtual reality applications globally. Then, considering some practical constraints, a joint resource allocation problem of rate and transmission power is formulated.
Jianfeng Shi +3 more
wiley +1 more source
Digital twin assisted multi‐task offloading for vehicular edge computing under SAGIN with blockchain
IET Communications, Volume 19, Issue 1, January/December 2025.This paper proposes to use the space–air–ground integrated network with blockchain to enhance the network capability and the privacy protection of vehicular edge networks, and take the digital twin (DT) to design a DT‐assisted structure for vehicular edge computing to capture the dynamic characteristics of vehicles and the entire environment.
Qiyong Chen +4 more
wiley +1 more source
Adaptive downlink OFDMA resource allocation [PDF]
2008 42nd Asilomar Conference on Signals, Systems and Computers, 2008 Optimizing OFDMA resource allocation with respect to communication performance requires solving a nonlinear mixed-integer programming problem. As a result, many researchers have fallen back on suboptimal heuristic algorithms. In a recent paper, we demonstrate that ergodic rate maximization is possible using a dual optimization framework that results in
Ian C. Wong, Brian L. Evans
openaire +1 more source
Green communication for OverGNN enabled heterogeneous ultra‐dense networks
IET Communications, Volume 19, Issue 1, January/December 2025.The heterogeneous graph neural network (GNN) is constructed with a novel high‐dimensional computation structure (namely OverGNN) for the power allocation problem under heterogeneous ultra‐dense networks in this work. Based on this fact, an efficient message passing scheme for user equipments under the same base station is developed to approximate the ...
Jun Zeng +5 more
wiley +1 more source
OFDMA para Sistemas de Banda Ancha Inalámbrica
Prisma Tecnológico, 2009 Este artículo describe el sistema de Acceso Múltiple por División de Frecuencia Ortogonal (OFDMA), un método de modulación para la segunda generación de acceso a banda ancha inalámbrica.
Daniel Tuñón, Ramón Ortega
doaj
Adaptive OFDMA Resource Allocation using Modified Multi-Dimension Genetic Algorithm [PDF]
Iraqi Journal for Electrical and Electronic Engineering, 2016 A considerable work has been conducted to cope with orthogonal frequency division multiple access (OFDMA) resource allocation with using different algorithms and methods. However, most of the available studies deal with optimizing the system for one or
Mohammed Khalid Ibrahim +1 more
doaj
A Scheduling Policy for Downlink OFDMA in IEEE 802.11ax with Throughput Constraints [PDF]
, 2020 Konstantinos Dovelos, Boris Bellalta
openalex +1 more source
IET 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
Joint User Scheduling and MU-MIMO Hybrid Beamforming Algorithm for mmWave FDMA Massive MIMO System
International Journal of Antennas and Propagation, 2016 The large bandwidth and multipath in millimeter wave (mmWave) cellular system assure the existence of frequency selective channels; it is necessary that mmWave system remains with frequency division multiple access (FDMA) and user scheduling. But for the
Jing Jiang, Deting Kong
doaj +1 more source
Rate Adaptive Based Resource Allocation with Proportional Fairness Constraints in OFDMA Systems
Sensors, 2015 Orthogonal frequency division multiple access (OFDMA), which is widely used in the wireless sensor networks, allows different users to obtain different subcarriers according to their subchannel gains.
Zhendong Yin +3 more
doaj +1 more source