IEEE 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
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
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
Model division multiple access for semantic communications
Frontiers of Information Technology & Electronic Engineering, 2023 In a multi-user system, system resources should be allocated to different users. In traditional communication systems, system resources generally include time, frequency, space, and power, so multiple access technologies such as time division multiple ...
Ping Zhang +12 more
semanticscholar +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
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
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 +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
doaj +1 more source
Performance analysis of a 2-D time-wavelength OCDMA wavelength-aware receiver with beat noise [PDF]
, 2006 The effect of beat noise on two-dimensional time-wavelength optical code-division multiple-access systems utilising wavelength-aware receivers is examined. A derivation of a general formula for the bit error probability taking into consideration multiple
Taher Bazan +5 more
core +1 more source
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 +2 more sources