Results 31 to 40 of about 883,308 (287)

Multi-Carrier Waveforms and Multiple Access Strategies in Wireless Networks: Performance, Applications, and Challenges

open access: yesIEEE Access, 2022
Current generation mobile communications require high-quality services. Adopting multiple access (MA) and multi-carrier waveforms potentially enhances the quality of services offered to end-users.
Tewelgn Kebede   +4 more
doaj   +1 more source

Maximal (v, k, 2, 1) Optical Orthogonal Codes with k = 6 and 7 and Small Lengths

open access: yesMathematics, 2023
Optical orthogonal codes (OOCs) are used in optical code division multiple access systems to allow a large number of users to communicate simultaneously with a low error probability.
Tsonka Baicheva, Svetlana Topalova
doaj   +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

Studi Penentuan Spesifikasi Teknis Terminal Wideband Code Division Multiple Access (WCDMA)

open access: yesBuletin Pos dan Telekomunikasi: Media Komunikasi Ilmiah, 2014
Sesuai dengan Kepmen No.504/KEP/M.KOMINFO/08/2012 tentang Izin Penyelenggaraan Jaringan Bergerak Seluler Indosat, pemerintah telah memberikan ijin kepada Indosat untuk menggelar teknologi WCDMA pada pita frekuensi 900MHz. Penggelaran teknologi WCDMA pada
Sri Ariyanti
doaj   +1 more source

Coded aperture compressive temporal imaging [PDF]

open access: yes, 2013
We use mechanical translation of a coded aperture for code division multiple access compression of video. We present experimental results for reconstruction at 148 frames per coded snapshot.Comment: 19 pages (when compiled with Optics Express' TEX ...
Brady, David J.   +7 more
core   +2 more sources

Orthogonal short codes for code division multiple access networks [PDF]

open access: yesEuropean Transactions on Telecommunications, 1996
AbstractShort codes are known to have better balance and spectral characteristics than their long counterparts. In this work we show by simulations that for certain users loads their bit error performance are excellent. A CDMA network performance is investigated under different load and fading situations.
Khalil Kanj   +2 more
openaire   +1 more source

All-optical pulse processing for advanced photonic communication system [PDF]

open access: yes, 2008
This paper investigates the use of a two-photon absorption photodetector for high speed processing of ultrashort optical pulses in advanced photonic communication systems. Specifically the paper describes how the two-photon absorption photodetector maybe
Barry, Liam P.   +9 more
core   +1 more source

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

open access: yesTransNav, 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

Cdma blind channel equalization: a weighted subsface a proach [PDF]

open access: yes, 1999
This paper considers the problem of blind demodulation of multiuser information symbols in a direct-sequence code-division multiple access (DS-CDMA) environment. Channel estimation and symbol detection in the presence of both multiple access interference
Cabrera-Bean, Margarita   +1 more
core   +1 more source

Channel Identification Using Chaos for an Uplink/Downlink Multicarrier Code Division Multiple Access System

open access: yesJournal of Telecommunications and Information Technology, 2023
A scheme of chaotic spreading sequence for multicarrier code division multiple access system (MC-CDMA) is proposed to estimate the transmission channel. This system spreads spectrum and identifies the channel, simultaneously.
Miloud Frikel   +3 more
doaj   +3 more sources

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