Cross-layer design for single-cell OFDMA systems with heterogeneous QoS and partial CSIT [PDF]
, 2009 — This paper proposes a novel cross-layer scheduling scheme for a single-cell orthogonal frequency division multiple access (OFDMA) wireless system with partial channel state information (CSI) at transmitter (CSIT) and heterogeneous user delay ...
Charilaos Zarakovitis +8 more
core +8 more sources
Multi-group frequency hopping OFDMA based on statistical multiplexing [PDF]
, 2008 In this paper, the multi-group frequency hopping OFDMA (MG-FH OFDMA) based on the statistical multiplexing is proposed for the downlink cellular system. Compared with the existed random frequency hopping OFDMA (RFH-OFDMA) system utilizing the statistical
Su, Xinghui +9 more
core +1 more source
A Reduced-Complexity Detector for OFDMA/SC-FDMA-aided Space-Time Shift Keying [PDF]
, 2013 We propose a novel reduced-complexity detector for the orthogonal frequency division multiple access (OFDMA)/single-carrier frequency division multiple access (SC-FDMA)-aided space-time shift keying (STSK) architecture.
Mohammad Ismat Kadir +5 more
core +2 more sources
Radio resource allocation in relay based OFDMA cellular networks [PDF]
, 2010 PhDAdding relay stations (RS) between the base station (BS) and the mobile stations (MS) in a cellular system can extend network coverage, overcome multi-path fading and increase the capacity of the system.
Xiao, Lin
core +4 more sources
Optimal Subcarrier Allocation Algorithm for OFDMA Systems [PDF]
Engineering and Technology Journal, 2013 An optimal subcarrier allocation algorithm is proposed for orthogonal frequency division multiple access systems over Rayleigh fading channels with channel state information feedback. The transmitted orthogonal frequency division multiple access frame is
Sahar Salman Mahmood
doaj +1 more source
Application of Wi-Fi 6 Technology in Coal Mine
Meikuang Anquan, 2020 The wireless network coverage scheme of Wi-Fi 6 in underground coal mine is designed to solve the problem that 5G communication cannot achieve the whole mine signal coverage in underground coal mine.
ZHANG Jinhao, CHEN Min
doaj +1 more source
Research of the total spectral density of signals in the LTE up-link
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2020 This article is devoted to the analysis of the total spectral radiation density of LTE subscriber terminals. The LTE network uses orthogonal frequency division multiple access (OFDMA) technology for downlink communications, and multiple access technology
A. A. Novikova +2 more
doaj +1 more source
Random beamforming OFDMA for future generation cellular communication systems [PDF]
, 2007 This paper presents a downlink performance analysis of a Layered Random Beamforming (LRB) - MIMO-OFDMA Physical Layer (PHY) as applicable to future generation wireless communication systems.
Joe McGeehan +9 more
core +1 more source
Flexible resource allocation for joint optimization of energy and spectral efficiency in OFDMA multi-cell networks [PDF]
, 2015 The radio resource allocation problem is studied, aiming to jointly optimize the energy efficiency (EE) and spectral efficiency (SE) of downlink OFDMA multi-cell networks.
Jing, Wenpeng +4 more
core +1 more source
MU-MIMO enabled uplink OFDMA MAC protocol in dense IEEE 802.11ax WLANs
ICT Express, 2020 IEEE 802.11ax supports orthogonal frequency division multiple access (OFDMA) for uplink (UL) transmissions where stations (STAs) access randomly chosen resource units (RUs) in a distributed manner.
Sohyun Joo +3 more
doaj +1 more source