Results 91 to 100 of about 8,421 (222)
, 2012 Tackling problems from the least complicated to the most, Resource Allocation in Uplink OFDMA Wireless Systems provides readers with a comprehensive look at resource allocation and scheduling techniques (for both single and multi-cell deployments) in ...
Dawy Z., Yaacoub E.E.
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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
IRS‐Aided Secure Communication in Multiuser MISO System With Hardware Impairments
Journal of Sensors, Volume 2026, Issue 1, 2026.Unavoidable hardware impairments (HIs) in practical systems can significantly impact system performance. This study explores the security design of an IRS‐assisted multiuser MISO eavesdropping network, focusing on robust secrecy rate optimization considering residual transceiver HIs.
Yun Chen, Yongling Wu, Li Zhu, Deepali
wiley +1 more source
Joint call admission control and resource allocation for H.264 SVC transmission over OFDMA networks [PDF]
, 2010 This paper aims to combine adaptive subcarrier allocation and bit loading with the transmission of the H.264 SVC (Scalable Video Coding) encoded video sequences in order to increase the number of supported users in the system and provide the best quality
Bocus, MZ +5 more
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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
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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
Transactions on Emerging Telecommunications Technologies, Volume 36, Issue 7, July 2025.We introduce a novel model of an IRS‐assisted MU‐MISO‐OFDMA system. We aim to jointly optimize beamforming vectors, IRS reflection coefficients, and OFDM subcarrier allocation to maximize the overall sum rate. ABSTRACT In this article, we propose a novel resource allocation strategy for multiuser multiple‐input single‐output orthogonal frequency ...
Binh‐Minh Vu, Oh‐Soon Shin
wiley +1 more source
MMSE Receiver for Multiuser Interference Cancellation in Uplink OFDMA
, 2006 In uplink orthogonal frequency division multiple access (OFDMA) systems, multiuser interference (MUI) occurs due to different carrier frequency offsets (CFO) of different users at the receiver. In this paper, we present a minimum mean square error (MMSE)
Chockalingam, A +3 more
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Green communication systems via a wavefront multiplexing technique
Systems Engineering, Volume 28, Issue 1, Page 5-14, January 2025.Abstract A green communication scheme using an orthogonal wavefront (WF) multiplexing (Muxing) scheme spatially combined with orthogonal frequency‐division multiplexing (OFDM) techniques is proposed. It forms a spatial WF OFDM transceiver. The WF Muxing technique serves as the preprocessing and postprocessing method of the WF OFDM transceiver.
Hen‐Geul Yeh, Joe Lee
wiley +1 more source