Results 31 to 40 of about 27,401 (218)

Implementation of Multiple Access Techniques Applicable for Maritime Satellite Communications [PDF]

TransNav, 2013
In this paper are introduced fundamentals, characteristics, advantages and disadvantages of Multiple Access (MA) employed as transmission techniques in the Maritime Mobile Satellite Communications (MMSC) between ships and Coast Earth Station (CES) via ...
Stojce Dimov Ilcev
doaj   +1 more source

Analysis of Multiple-Access Discrimination Techniques for the Development of a PSD-Based VLP System

Sensors, 2020
There are several technologies and techniques available when developing indoor positioning systems (IPS). Recently, the development of positioning systems based on optical signals has aroused great interest, mainly those using visible light from the ...
Álvaro De-La-Llana-Calvo, José-Luis Lázaro-Galilea, Alfredo Gardel-Vicente, David Rodríguez-Navarro, Borja Rubiano-Muriel, Ignacio Bravo-Muñoz   +5 more
doaj   +1 more source

Sum rates of asynchronous GFDMA and SC-FDMA for 5G uplink

ICT Express, 2015
The fifth generation (5G) of mobile communication envisions ultralow latency less than 1 ms for radio interface. To this end, frameless asynchronous multiple access may be needed to allow users to transmit instantly without waiting for the next frame ...
Woojin Park, Hyun Jong Yang, Hyunmyung Oh   +2 more
doaj   +1 more source

RPDMA: A PAPR-Aware Multiple Access Scheme

IEEE Open Journal of Vehicular Technology
This article proposes a novel Multiple Access (MA) scheme called Ramanujan Periodic-subspace Division Multiple Access (RPDMA) for subcarrier sizes $N = 2^{m},\ m\in \mathbb {N}$, to address the high Peak-to-Average Power Ratio (PAPR) in Orthogonal ...
Goli Srikanth, Shaik Basheeruddin Shah, Nazar T. Ali, Vijay Kumar Chakka, Jorge Querol, Ahmed Altunaiji, Dragan I. Olcan   +6 more
doaj   +1 more source

Design of SIMO SC-FDMA-DMWT transceiver using maximal-ratio combining in LoS fading channels [PDF]

Serbian Journal of Electrical Engineering
In this paper single-input multiple-output (SIMO) transceivers employing single-carrier Frequency Division Multiple Access with Discrete Multi- Wavelet Transform (SC-FDMA-DMWT) for 3GPP Long Term Evolution (LTE) uplink channels are considered.
Kadhim Mohammed Aboud, Ali Mohammed Hussain   +1 more
doaj   +1 more source

OFDMA/SC-FDMA aided space-time shift keying for dispersive multi-user scenarios

, 2013
Motivated by the recent concept of Space-Time Shift Keying (STSK) developed for achieving a flexible diversity versus multiplexing gain trade-off, we propose a novel Orthogonal Frequency Division Multiple Access (OFDMA)/Single Carrier Frequency Division ...
Chen, Sheng, Hanzo, Lajos, Mohammad, Ismat Kadir, Sugiura, Shinya, Zhang, Jiayi   +4 more
core   +1 more source

Frequency-Domain Turbo Equalisation in Coded SC-FDMA Systems: EXIT Chart Analysis and Performance [PDF]

, 2012
In this paper, we investigate the achievable performance of channel coded single-carrier frequency division multiple-access (SC-FDMA) systems employing various detection schemes, when communicating over frequency-selective fading channels.
Hanzo, Lajos, Yang, Lie-Liang, Zhang, Jiayi   +2 more
core   +1 more source

Federated Split Learning for Large Language Models With RSMA

IET Communications, Volume 20, Issue 1, January/December 2026.
This study proposes a federated split learning framework for large language models (FedsLLM) integrated with rate‐splitting multiple access (RSMA), aimed at enhancing the efffciency and privacy of LLM training in wireless communication systems. ABSTRACT This study proposes a federated split learning framework for large language models (FedsLLM ...
Jianxin Dai, Rui Tang, Feibo Jiang, Zhaohui Yang, Qianqian Yang, Zhaoyang Zhang, Linqing Gui   +6 more
wiley   +1 more source

Challenges, models, and algorithms for flow and transport simulations in deep reservoirs

Deep Underground Science and Engineering, Volume 4, Issue 4, Page 638-650, December 2025.
Deep reservoirs are considered a promising resource for future energy supply, but current reservoir simulation technologies may face certain challenges if they are directly used in specific scenarios in deep reservoir development. Models and algorithms were developed to resolve these challenges, including a better phase equilibrium model, a better ...
Tao Zhang, Jie Liu, Shuyu Sun
wiley   +1 more source

Prostorno-frekvencijsko blok kodiranje sa odsjecanjem i filtriranjem kao tehnika predajni diverziti u SC-FDMA [PDF]

, 2015
The paper presents Space-Frequency Block Coding (SFBC) as a transmit diversity technique in Single Carrier Frequency Division Multiple Access (SC-FDMA). SC-FDMA is known as a low Peak-to-Average Power Ratio (PAPR) modulation technique.
Borivoj Modlic, Darko Sinanović, Gordan Šišul   +2 more
core   +2 more sources