Results 31 to 40 of about 10,206 (164)

CNN‐DDQN Spatial Learning for Fractional Frequency Reuse Optimization in 5G Heterogeneous Networks

Engineering Reports, Volume 8, Issue 7, July 2026.
This study proposes a spatially aware DRL framework that uses multichannel network‐state tensors and a lightweight CNN‐DDQN architecture to capture interference patterns and user clustering in 5G heterogeneous networks (HetNets). The model is computationally efficient with only 7361 trainable parameters, achieving 115× faster execution and < 10 ms ...
Christian Onu, Abdulwaheed Musa, Olalekan Ogunbiyi, Lambe Mutalub Adesina, Bilkisu Jimada‐Ojuolape, Monsurat Balogun, Abdurrhaman Ademola Isa, Aliyu Ahmed, Ishmael Zibani, Adamu Murtala Zungeru   +9 more
wiley   +1 more source

Maximizing energy-efficiency in multi-relay OFDMA cellular networks

, 2013
This contribution presents a method of obtaining the optimal power and subcarrier allocations that maximize the energy-efficiency (EE) of a multi-user, multi-relay, orthogonal frequency division multiple access (OFDMA) cellular network.
Cheung, Kent Tsz Kan, Yang, Shaoshi, Shaoshi Yang, Hanzo, Lajos, Kent Tsz Kan Cheung, Lajos Hanzo   +5 more
core   +1 more source

System level evaluation of UL and DL interference in OFDMA mobile broadband networks [PDF]

, 2011
This paper presents results from a novel OFDMA multi-cell mobile broadband system level simulator. The tool is used to statistically characterize uplink and downlink inter-cell interference.
Nix, AR, Mark Beach, Andrew Nix, David Halls, Beach, MA, Halls, David   +5 more
core   +1 more source

Generalized Network-Coded Cooperation in OFDMA Communications

IEEE Access, 2018
Cooperative communication is a well-established technique to obtain diversity and consequently combat the fading inherent to the wireless channel. In a recent work, network-coded cooperation (NCC) along with graph theory-aided subcarrier allocation was ...
Zaqueu Cabral Pereira, Thiago Henrique Ton, Joao Luiz Rebelatto, Richard Demo Souza, Bartolomeu F. Uchoa-Filho   +4 more
doaj   +1 more source

A Review of Software for Designing and Operating Quantum Networks

Advanced Quantum Technologies, Volume 9, Issue 2, February 2026.
A quantum network can be organized following a three‐plane abstraction: infrastructure, logical, and control. A taxonomy of the network functions of the control plane is proposed, and the state of the art in software for quantum networks is discussed. A guide for future directions on software development is provided.
Robert J. Hayek, Joaquin Chung, Rajkumar Kettimuthu   +2 more
wiley   +1 more source

Robust Spectral and Energy Efficiency Tradeoff for RIS‐Aided Multi‐User Communication

IET Communications, Volume 20, Issue 1, January/December 2026.
In this work, an RIS‐aided multi‐user network with imperfect CSI is investigated. Correspondingly, we focus on balancing SE and EE through the collaborative design of the base station (BS)'s precoding matrix and the RIS's phase shifts, which consider the transmit power budget and the channel uncertainties constraints.
Xiandeng He, Yilin Wang, Shun Zhang
wiley   +1 more source

Resource allocation techniques for OFDMA-based decode-and-forward relaying networks [PDF]

, 2008
In this paper, we focus on the design of efficient resource allocation algorithms for a multihop cellular network, with orthogonal frequency division multiple access (OFDMA) as downlink transmission technique and utilizing decode-and- forward cooperation
Nix, AR, Yuwen Pan, Mark Beach, Pan, Y, Andrew Nix, Beach, MA   +5 more
core   +1 more source

Exploring Missed Spectrum Access Opportunities in Wi‐Fi 6 and 5G NR‐U Coexistence for Enhancing 6 GHz Spectrum Utilization

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper investigates new radio spectrum coexistence mechanisms, leveraging the currently uninhabited 6 GHz bands and aiming for fair coexistence of Wi‐Fi 6 and 5G new radio unlicensed (NR‐U). A novel two‐stage channel contention mechanism is proposed to explore additional spectrum access opportunities which remain unrealized in the existing channel ...
Md Toufiqur Rahman, Jiang Xie, Xingya Liu   +2 more
wiley   +1 more source

Secure image transmission through LTE wireless communications systems

EURASIP Journal on Image and Video Processing
Secure transmission of images over wireless communications systems can be done using RSA, the most known and efficient cryptographic algorithm, and OFDMA, the most preferred signal processing choice in wireless communications.
Farouk Abduh Kamil Al-Fahaidy, Radwan AL-Bouthigy, Mohammad Yahya H. Al-Shamri, Safwan Abdulkareem   +3 more
doaj   +1 more source

Energy-Efficient OFDM Radio Resource Allocation Optimization With Computational Awareness: A Survey

IEEE Access, 2022
In this paper, we review radio resource optimization methods for energy-efficient wireless communication in links and networks using the Orthogonal Frequency Division Multiplexing (OFDM) and Orthogonal Frequency Division Multiple Access (OFDMA ...
Bartosz Bossy, Pawel Kryszkiewicz, Hanna Bogucka   +2 more
doaj   +1 more source