Zobrazeno 1 - 10
of 2 045
pro vyhledávání: '"mc-cdma"'
Autor:
Ridha Ilyas Bendjillali, Mohammed Sofiane Bendelhoum, Abderraouf Elarbi, Mohamed Rida Lahcene
Publikováno v:
Journal of Telecommunications and Information Technology, Vol 2, Iss 2 (2024)
Over the past decade, personal communications have witnessed exponential growth, fueled by the increasing number of connected users and the diversity of transmitted data types. This expansion necessitates a boost in the transmission systems' capacity
Externí odkaz:
https://doaj.org/article/c080c1b448e84a8488eccb09e959faa9
Publikováno v:
Tongxin xuebao, Vol 44, Pp 177-185 (2023)
To solve the problem of limited number of sequences in the mutually orthogonal complementary code set and high peak-to-average power ratio (PAPR) in MC-CDMA system, a construction of asymptotically optimal a periodic binary QCSS with low column vecto
Externí odkaz:
https://doaj.org/article/7d4314045c414423b2be6586b1c6e70d
Publikováno v:
Радіоелектронні і комп'ютерні системи, Vol 0, Iss 1, Pp 101-111 (2023)
The subject matter of the article is to identify and equalize the parameters of telecommunication channels. The goal is to develop a new mathematical approach based on positive definite kernels on a Hilbert space. The tasks to be solved are: (a) to f
Externí odkaz:
https://doaj.org/article/a904485f94454e2a82f898a6554fe86e
Autor:
Eka Kusumawardhani, Rina Pudji Astuti, Nachwan Mufti Adriansyah, Fitri Imansyah, Leonardus Sandy Ade Putra
Publikováno v:
Positron, Vol 12, Iss 2, Pp 120-125 (2022)
The need for a communication system with a higher data rate and mobility grows along with information and communication technology development. Combining MC-CDMA with the MIMO system and supporting the system with a good transmit diversity technique
Externí odkaz:
https://doaj.org/article/e48824c786764463a089185805bc6daa
Publikováno v:
Journal of Engineering, Vol 18, Iss 04 (2023)
This work presents a comparison between the Convolutional Encoding CE, Parallel Turbo code and Low density Parity Check (LDPC) coding schemes with a MultiUser Single Output MUSO Multi-Carrier Code Division Multiple Access (MC-CDMA) system over multip
Externí odkaz:
https://doaj.org/article/651fdbcdd2a2422da22a77d97867abfc
Akademický článek
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Publikováno v:
Journal of Telecommunications and Information Technology, Iss 2 (2023)
This paper describes two blind algorithms for multicarrier code division multiple access (MC-CDMA) system equalization. In order to identify, blindly, the impulse response of two practical selective frequency fading channels called broadband radio ac
Externí odkaz:
https://doaj.org/article/cc22600cf7a943b0ab8c1132a6000783
Publikováno v:
Journal of Telecommunications and Information Technology, Iss 4 (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. The proposed scheme uses
Externí odkaz:
https://doaj.org/article/a66d009fe3324906a1e441de0ff9f7cb
Akademický článek
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Autor:
Monica Khanore, Srija Unnikrishnan
Publikováno v:
ICTACT Journal on Communication Technology, Vol 12, Iss 1, Pp 2231-2238 (2021)
Systems based on spread spectrum technique are inherently interference resistant. However, asynchronous transmission and multipath propagation causes manifestation of multiuser interference. Multiuser interference in a multiple access system limits t
Externí odkaz:
https://doaj.org/article/1f9f7ea1f0704a04a28ea18914067e03