Results 21 to 30 of about 10,206 (164)
A game theoretic approach to distributed resource allocation for OFDMA-based relaying networks [PDF]
, 2008 In this paper, algorithms on distributed resource (spectrum and power) sharing for relay stations are investigated for downlink transmissions in an OFDMA-based relay-aided cell. Both system capacity and user fairness are considered. By grouping the relay
Nix, AR +5 more
core +1 more source
Dimensioning of 5G Networks by Using Stochastic Geometry
International Journal of Information and Communication Technology Research, 2021 In this paper, we propose an analytical model for dimensioning of Orthogonal Frequency Division Multiple Access (OFDMA) systems in 5G networks by considering Internet of Thing (IoT) application using stochastic geometry.
Siminfar Samakoush Galougah +1 more
doaj
The Journal of Engineering, 2023 Transmitting images over an Orthogonal Frequency Division Multiplexing Access (OFDMA) system poses a significant challenge. The process entails sending a substantial amount of data, which consumes a significant amount of bandwidth.
Khaled A. M. Al Soufy +3 more
doaj +1 more source
Performance evaluation of hybrid ARQ schemes of 3GPP LTE OFDMA system [PDF]
, 2007 Expectations and requirements for future wireless communication systems continue to grow and evolve. Thus, recently, the Third Generation Partnership Project (3GPP) has considered the Long Term Evolution (LTE) of 3G - also known as Super 3G - to ensure ...
Beh, KC +5 more
core +1 more source
A NEW DISCRETE HARTLEY TRANSFORM PRECODING BASED INTERLEAVED-OFDMA UPLINK SYSTEM WITH REDUCED PAPR FOR 4G CELLULAR NETWORKS [PDF]
Journal of Engineering Science and Technology, 2011 High peak-to-average power ratio (PAPR) reduction is one of the major challenges in orthogonal frequency division multiple access (OFDMA) systems since last decades. High PAPR increases the complexity of analogue-to-digital (A/D) and digital-to-analogue (
VARUN JEOTI, IMRAN BAIG
doaj
An Efficient Backoff Procedure for IEEE 802.11ax Uplink OFDMA-Based Random Access
IEEE Access, 2022 IEEE 802.11ax stations can use multi-user (MU) uplink OFDMA-based random access (UORA) to improve per-station throughput in dense deployments in comparison to legacy IEEE 802.11 single-user access.
Katarzyna Kosek-Szott, Krzysztof Domino
doaj +1 more source
Performance analysis of layered random beamforming OFMDA with feedback reduction [PDF]
, 2007 This paper presents a downlink performance analysis of a Layered Random Beamforming (LRB) - MIMO-OFDMA Physical Layer (PHY) with feedback reduction as applicable to future generation wireless communication systems.
Joe McGeehan +9 more
core +1 more source
Analysis of Low Probability of Detection Capability for Chaotic Standard Map-Based FH-OFDMA System
Applied Sciences, 2021 A frequency hopping orthogonal frequency division multiple access (FH-OFDMA) can provide low probability of detection (LPD) and anti-jamming capabilities to users against adversary detectors. To obtain an extreme LPD capability that cannot be provided by
Junwoo Jung +4 more
doaj +1 more source
EURASIP Journal on Wireless Communications and Networking, 2009 The problem of multiservice transmission in OFDMA-based cooperative relay networks is studied comprehensively. We propose a framework to adaptively allocate power, subcarriers, and data rate in OFDMA system to maximize spectral efficiency under the ...
Wenbo Wang, Shuping Chen, Xing Zhang
doaj +2 more sources
A Comparison of Reinforcement Learning Algorithms in Fairness-Oriented OFDMA Schedulers
Information, 2019 Due to large-scale control problems in 5G access networks, the complexity of radio resource management is expected to increase significantly. Reinforcement learning is seen as a promising solution that can enable intelligent decision-making and reduce ...
Ioan-Sorin Comșa +5 more
doaj +1 more source