Results 11 to 20 of about 105,525 (290)

A novel frequency-domain implementation of Tomlinson-Harashima precoding for SC-FDMA [PDF]

open access: yes, 2009
There is considerable interest in the use of single carrier frequency division multiple access (SC-FDMA) as the uplink transmission scheme in the 3GPP Long Term Evolution standard. This interest is justified by the inherent single carrier structure of SC-
Nix, AR, Noune, MB
core   +2 more sources

Joint radar-communication waveform designs using signals from multiplexed users [PDF]

open access: yes, 2020
Joint radar-communication designs are exploited in applications where radar and communications systems share the same frequency band or when both radar sensing and information communication functions are required in the same system.
Cao, Ning   +3 more
core   +1 more source

Suboptimal Resource Allocation for MIMO-FDMA Systems [PDF]

open access: yesEngineering and Technology Journal, 2014
In this paper, a pragmatic resource allocation algorithm for single-cell downlink multi input-multi-output (MIMO) based orthogonal frequency division multiple access(OFDMA) systems is proposed.
Salah AwadAliesawi
doaj   +1 more source

Joint Tomlinson-Harashima precoding and optimum transmit power allocation for SC-FDMA [PDF]

open access: yes, 2010
Single-Carrier Frequency Division Multiple Access (SC-FDMA) has been selected as the uplink transmission scheme in the 3GPP Long Term Evolution standard.
Nix, AR, Noune, MB
core   +2 more sources

Study on downlink spectral efficiency in orthogonal frequency division multiple access systems [PDF]

open access: yesIET Communications, 2014
In previous studies on the capacity of orthogonal frequency division multiple access (OFDMA) systems, it is usually assumed that co‐channel interference (CCI) from adjacent cells is a Gaussian‐distributed random variable. However, very‐little work shows that the Gaussian assumption does not hold true in OFDMA systems.
Huo, Qiang, Ma, Meng, Jiao, Bingli
openaire   +2 more sources

On receiver design for low density signature OFDM (LDS-OFDM) [PDF]

open access: yes, 2012
Low density signature orthogonal frequency division multiplexing (LDS-OFDM) is an uplink multi-carrier multiple access scheme that uses low density signatures (LDS) for spreading the symbols in the frequency domain.
Al-Imari, Mohammed   +4 more
core   +1 more source

Analyses of Space Division Multiple Access (SDMA) Schemes for Global Mobile Satellite Communications (GMSC) [PDF]

open access: yesTransNav, 2020
This paper describes analyzes of the Space Division Multiple Access (SDMA) technique and their hybrids with other Multiple Access Technique (MAT) such as Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), and Code Division ...
Stojce Dimov Ilcev
doaj   +1 more source

Overcoming self-interference in SM-OFDMA with ESINR and dynamic subcarrier allocation [PDF]

open access: yes, 2009
For a single user with multiple receive antennas, co-antenna interference can be the dominant source of impairment in a Spatial Multiplex Orthogonal Frequency Division Multiple Access (SM-OFDMA) system, particularly when correlation exists between ...
Armour, SMD, McGeehan, JP, Nordin, R
core   +2 more sources

Performance Analysis of OFDMA and SC-FDMA

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2017
The main challenge in any high-speed digital communication system is how to maximize the data rate with minimizing the bit error rate. Several techniques have been developed to achieve this point.
Muhanned AL-Rawi
doaj   +1 more source

Survey and Performance Evaluation of Multiple Access Schemes for Next-Generation Wireless Communication Systems

open access: yesIEEE Access, 2021
Mobile communication systems are always in continuous evolution due to the demands of the end-users using this technology. Therefore, before the possible launch of 5G, some technologies have opened the way to the new mobile communication system. The need
A. F. M. Shahen Shah   +4 more
doaj   +1 more source

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