Results 11 to 20 of about 2,268 (161)
MULTICHANNEL M-ARY BI-ORTHOGONAL KEYING
Information and Telecommunication Sciences, 2015 The new method of Multichannel M-ary Bi-Orthogonal Keying, its operating principle and performance studying are introduced in this paper. Utilized spectral efficiency and BER performance of this method are also studied in comparison with DS-CDMA. Overall
Kateryna P. Kovalchuk +1 more
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IEEE AccessIn this work, we consider Terahertz (THz) communications with low-resolution uniform quantization and spatial oversampling at the receiver side, corresponding to a single-input multiple-output (SIMO) transmission.
Christian Forsch +4 more
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ENHANCEMENT OF CODE DIVISION MULTIPLE ACCESS (CDMA) WITHIN THE GSM SYSTEM IN IRAQ
Mağallaẗ Al-kūfaẗ Al-handasiyyaẗDespite the widespread adoption of Global System for Mobile Communications (GSM) in Iraq, the network's capacity and performance limitations have become increasingly apparent, particularly in urban areas with high user density. Currently, LTE (4G) is the
Nabil Abdulwahab Abdulrazaq Baban
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Análise da Performance da Técnica MC/MC-CDMA
Trends in Computational and Applied Mathematics, 2007 A técnica Multi Portadora / Multi Código CDMA (MC/MC-CDMA) é analisada através de uma comparação do desempenho entre as técnicas Multi Código CDMA e Multi Portadora CDMA.
A.S. Araújo, G.A. Carrijo, E.L. Flores
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Reconfigurable Signal Processing and Hardware Architecture for Broadband Wireless Communications
EURASIP Journal on Wireless Communications and Networking, 2005 This paper proposes a broadband wireless transceiver which can be reconfigured to any type of cyclic-prefix (CP) -based communication systems, including orthogonal frequency-division multiplexing (OFDM), single-carrier cyclic-prefix (SCCP) system ...
Liang Ying-Chang +3 more
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СРАВНИТЕЛЬНЫЙ АНАЛИЗ РАЗЛИЧНЫХ ТЕХНОЛОГИЙ РАДИОТЕЛЕФОННОЙ СВЯЗИ DECT, GSM, CDMA
Cifra: Информационные технологии и телекоммуникацииВ данной статье проведен сравнительный анализ трех основных технологий радиотелефонной связи: DECT, GSM и CDMA. Каждая из этих технологий имеет свои уникальные особенности, области применения и происточные преимущества и недостатки.
Галыгин С.С. +2 more
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Bit Error Rate pada Sistem MIMO MC-CDMA dengan Teknik Alamouti-STBC
Techne, 2017 Pada makalah ini dilaporkan hasil penelitian sistem MIMO MC-CDMA dengan teknik Alamouti Space Time Block Code (STBC) menggunakan dua antena pengirim dan dua antena penerima. Kinerja sistem diukur dengan nilai Bit Error Rate (BER).
Sekar Harlen +2 more
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4G: Expectativas, Aplicaciones y Retos Existentes en su Implementación
Prisma Tecnológico, 2016 Cada vez son mayores los requerimientos de los sistemas inalámbricos por la creciente necesidad de información diversa por parte de los usuarios. Nos encontramos actualmente en le punto de transición entre una generación de tecnología y otra. Y si bien
Francisco Tello
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EURASIP Journal on Advances in Signal Processing, 2003 The goal of this paper is to compare the performance of the linear minimum mean square error (MMSE) detector for a class of code division multiple access (CDMA) systems in time and frequency selective channels. Specifically, we consider direct sequence (
Tamer A. Kadous, Akbar M. Sayeed
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Research of mine wireless broadband transmission technology
Gong-kuang zidonghua, 2013 The paper put forward that mine wireless broadband transmission technology is a key technology to meet with requirements of mobile monitoring, video and voice communication on cutting face, and proposed that mine wireless broadband transmission should ...
SUN Ji-ping
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