Maximal (v, k, 2, 1) Optical Orthogonal Codes with k = 6 and 7 and Small Lengths
Mathematics, 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]
TransNav, 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)
Buletin 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
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Large Deviations for Code Division Multiple Access Systems
SIAM Journal on Applied Mathematics, 2002 Let us consider a problem from telecommunications. Suppose that a system has \(k\) users and that all users transmit data simultaneously. In oder to do so, each user multiplies his data signal by an individual coding sequence. At the receiver, the signal of the \(m\)th \((1\leq m\leq k)\) user can be retrieved by taking the inner product of the ...
Gerard Hooghiemstra +2 more
openaire +3 more sources
Phase encoding and decoding of short pulses at 10Gb/s using superstructured fiber Bragg gratings [PDF]
, 2001 A 7-chip, 160-Gchip/s phase-shift keyed code is assigned to short pulses after reflection from a superstructured fiber Bragg grating. The code is then recognized by a second grating, which is nominally identical to the encoder grating.
Teh, P.C. +3 more
core +1 more source
Journal of Telecommunications and Information Technology, 2023 A scheme of chaotic spreading sequence for multicarrier code division multiple access system (MC-CDMA) iproposed to estimate the transmission channel. This systespreads spectrum and identifies the channel, simultaneously.
Miloud Frikel +3 more
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Convex optimization–based multi-user detection in underwater acoustic sensor networks
International Journal of Distributed Sensor Networks, 2018 Multi-carrier code-division multiple access is an important technical means for high-performance underwater acoustic sensor networks. Nevertheless, severe multiple access interference is a huge challenge.
Jianping Wang +4 more
doaj +1 more source
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
A comparative study of the performance of seven- and 63-chip optical code-division multiple-access encoders and decoders based on superstructured fiber Bragg gratings [PDF]
, 2001 We report a range of elementary optical coding and decoding experiments employing superstructured fiber Bragg grating (SSFBG) components: first, we perform a comparative study of the relative merits of bipolar and unipolar coding: decoding schemes and ...
Teh, Peh Chiong +3 more
core +1 more source
All-optical pulse processing for advanced photonic communication system [PDF]
, 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
Guo, Wei Hua +20 more
core +2 more sources