Results 11 to 20 of about 244,698 (338)

Time-Hopping Multicarrier Code-Division Multiple Access [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2007
A time-hopping multicarrier code-division multiple-access (TH/MC-CDMA) scheme is proposed and investigated. In the proposed TH/MC-CDMA, each information symbol is transmitted by a number of time-domain pulses with each time-domain pulse modulating a subcarrier.
Yang, L.-L., Lie-liang Yang
openaire   +3 more sources

Enhanced overloaded code division multiple access for network on chip

open access: yesIET Computers & Digital Techniques, 2022
The Code‐division multiple access (CDMA) method is commonly used as the network infrastructure in multi‐core chips. One of its advantages is the simultaneous connection of all network components. Another advantage is the constant delay of this method. On
Behnam Vakili, Morteza Gholipour
doaj   +1 more source

Design and Implementation of MC-CDMA Technique Using FPGA [PDF]

open access: yesEngineering and Technology Journal, 2013
Multicarrier Code Division Multiple Access (MC-CDMA) is attractive technique for high speed wireless data transmission; it's a combination of Orthogonal Frequency Division Multiplexing (OFDM) and Code Division Multiple Access (CDMA).
il A. H. Hadi, Layla Hattim Abood
doaj   +1 more source

Spatially Modulated Code-Division Multiple-Access for High-Connectivity Multiple Access [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2019
In order to take the advantages of spatial modulation (SM) and support the multiple-access (MA) communications requiring high connectivity, we integrate the SM with DS-CDMA to propose a SM/DS-CDMA scheme, which is in favor of attaining both antenna diversity and frequency diversity. Associated with the SM/DS-CDMA scheme, a range of linear and nonlinear
Peng Pan 0003, Lie-Liang Yang
openaire   +2 more sources

Sparse code multiple access on the generalized frequency division multiplexing

open access: yesEURASIP Journal on Wireless Communications and Networking, 2020
Recent advances in the communication systems culminated in a new class of multiple access schemes, named non-orthogonal multiple access (NOMA), where the main goal is to increase the spectrum efficiency by overlapping data from different users in a ...
Guilherme P. Aquino, Luciano L. Mendes
doaj   +1 more source

EXIT Chart Based Joint Code-Rate and Spreading-Factor Optimisation of Single-Carrier Interleave Division Multiple Access [PDF]

open access: yes, 2007
—In this paper, we consider the joint code-rate and spreading-factor optimisation of turbo-style iterative joint detection and decoding assisted single-carrier interleave division multiple access (SC-IDMA) systems using different-rate convolutional codes
Zhang, R   +3 more
core   +1 more source

Three design aspects of multicarrier interleave division multiple access [PDF]

open access: yes, 2008
This paper presents a novel generalized transceiver architecture, i.e., Multicarrier Interleave-Division-Multiplexing-aided Interleave Division Multiple Access (MC-IDM-IDMA). A parallel interference cancellation (PIC)-aided iterative multiuser detection (
Zhang, Rong, Hanzo, Lajos
core   +1 more source

A New Prime Code for Synchronous Optical Code Division Multiple-Access Networks

open access: yesJournal of Computer Networks and Communications, 2018
A new spreading code based on a prime code for synchronous optical code-division multiple-access networks that can be used in monitoring applications has been proposed.
Huda Saleh Abbas   +2 more
doaj   +1 more source

SCMA Spectral and Energy Efficiency With QoS

open access: yesIEEE Access, 2021
Sparse code multiple access (SCMA) is one of the promising candidates for new radio access interface. The new generation communication system is expected to support massive user access with high capacity. However, there are numerous problems and barriers
S. Jaber, W. Chen, K. Wang
doaj   +1 more source

Turbo receivers for interleave-division multiple-access systems [PDF]

open access: yes, 2009
In this paper several turbo receivers for Interleave-Division Multiple-Access (IDMA) systems will be discussed. The multiple access system model is presented first. The optimal, Maximum A Posteriori (MAP) algorithm, is then presented.
Cristea, Bogdan Eugen   +3 more
core   +1 more source

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