Kinerja Data Rate Koneksi HSDPA Pada Jaringan WCDMA

Teknologi High Speed Downlink Packet Access (HSDPA) adalah teknologi mobile data dengan kecepatan tinggi yang merupakan pengembangan dari generasi ketiga Wideband Code Division Multiple Access (WCDMA) yang mampu mentransmisikan data hingga 7.2 Mbps pada single user.Pada analisa kecepatan data HSDPA di Node B BHAKTIJAYAMW menampilkan parameter Payload, Throughput, dan Jumlah user HSDPA. Selain itu dilakukan juga pengukuran PING untuk mengetahui time respon saat melakukan koneksi ke Internet. Dari hasil analisa menunjukkan bahwa kecepatan data maksimum pada kondisi multiuser yang dapat dicapai dari hasil pengukuran statistik data adalah 3.14 Mbps, sedangkan dari hasil perhitungan pengukuran langsung sebesar 2.76 Mbps. Hasil tersebut masih jauh dari kecepatan data 7.2 Mbps untuk layanan HSDPA yang tersedia berdasarkan data vendor, karena kecepatan 7.2 Mbps hanya dapat diakses dengan single user, dan untuk multiuser akan terjadi sharing data.

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A mobile data code division multiple access (CDMA) system with power control and its application to low-bit-rate image transmission

IEEE 43rd Vehicular Technology Conference ◽

10.1109/vetec.1993.508805 ◽

2002 ◽

Cited By ~ 6

Author(s):

Y.-J. Liu ◽

Y.-Q. Zhang

Keyword(s):

Power Control ◽

Code Division Multiple Access ◽

Multiple Access ◽

Image Transmission ◽

Cdma System ◽

Bit Rate ◽

Mobile Data ◽

Low Bit Rate ◽

Code Division Multiple

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Linear Asynchronous Code-division Multiple Access Single-user Receiver

10.1109/isssta.1992.665642 ◽

2005 ◽

Cited By ~ 6

Author(s):

P.B. Rapajic ◽

B.S. Vucetic

Keyword(s):

Code Division Multiple Access ◽

Multiple Access ◽

Single User ◽

Code Division Multiple

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Optimum threshold detection in real-time scalable high-speed multi-wavelength optical code-division multiple-access LANs

IEEE Transactions on Communications ◽

10.1109/tcomm.2002.1006559 ◽

2002 ◽

Vol 50 (5) ◽

pp. 778-784 ◽

Cited By ~ 16

Author(s):

E.K.H. Ng ◽

E.H. Sargent

Keyword(s):

Real Time ◽

Code Division Multiple Access ◽

Multiple Access ◽

High Speed ◽

Threshold Detection ◽

Multi Wavelength ◽

Code Division Multiple ◽

Optimum Threshold

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New approach for evaluation of the performance of spectral amplitude coding-optical code division multiple access system on high-speed data rate

IET Communications ◽

10.1049/iet-com.2011.0482 ◽

2012 ◽

Vol 6 (12) ◽

pp. 1742 ◽

Cited By ~ 12

Author(s):

T.H. Abd ◽

S.A. Aljunid ◽

H.A. Fadhil ◽

R.B. Ahmad ◽

M.A. Rashid

Keyword(s):

Code Division Multiple Access ◽

Multiple Access ◽

High Speed ◽

Spectral Amplitude ◽

New Approach ◽

Access System ◽

High Speed Data ◽

Spectral Amplitude Coding ◽

Code Division Multiple ◽

Multiple Access System

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Using advanced optical multiple-access techniques in high-speed avionic local area networks for future aircraft applications. Part I: optical code-division multiple-access networks

ISA Transactions ◽

10.1016/s0019-0578(97)00001-3 ◽

1997 ◽

Vol 36 (1) ◽

pp. 49-64 ◽

Cited By ~ 3

Author(s):

Jian-Guo Zhang

Keyword(s):

Code Division Multiple Access ◽

Multiple Access ◽

High Speed ◽

Local Area Networks ◽

Local Area ◽

Access Networks ◽

Code Division Multiple

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Maximum-likelihood synchronization of a single user for code-division multiple-access communication systems

IEEE Transactions on Communications ◽

10.1109/26.662645 ◽

1998 ◽

Vol 46 (3) ◽

pp. 392-399 ◽

Cited By ~ 114

Author(s):

S.E. Bensley ◽

B. Aazhang

Keyword(s):

Maximum Likelihood ◽

Code Division Multiple Access ◽

Communication Systems ◽

Multiple Access ◽

Single User ◽

Code Division Multiple

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Novel tunable ultra-high-speed optical fiber code-division multiple-access networks for real-time computer communications

Proceedings IEEE International Conference on Communications ICC '95 ◽

10.1109/icc.1995.524418 ◽

2002 ◽

Cited By ~ 1

Author(s):

Jian-Guo Zhang

Keyword(s):

Optical Fiber ◽

Real Time ◽

Code Division Multiple Access ◽

Multiple Access ◽

High Speed ◽

Access Networks ◽

Computer Communications ◽

Ultra High Speed ◽

Code Division Multiple

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Secure Communications in High Speed Fiber Optical Networks Using Code Division Multiple Access (CDMA) Transmission

10.2172/15013953 ◽

2004 ◽

Author(s):

I Han ◽

S Bond ◽

R Welty ◽

Y Du ◽

S Yoo ◽

...

Keyword(s):

Optical Networks ◽

Code Division Multiple Access ◽

Multiple Access ◽

High Speed ◽

Secure Communications ◽

Fiber Optical ◽

Code Division Multiple

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Увеличение скорости регистрации эхосигналов ультразвуковой антенной решеткой с применением технологии множественного доступа с кодовым разделением

Дефектоскопия ◽

10.31857/s0130308220110019 ◽

2020 ◽

pp. 3-16

Author(s):

В.К. Авагян ◽

Е.Г. Базулин

Keyword(s):

Antenna Array ◽

Large Volume ◽

Code Division Multiple Access ◽

Multiple Access ◽

High Speed ◽

Matched Filtering ◽

Steel 20 ◽

Code Division Multiple

The disadvantage of using the digital antenna focusing (DAF) method to obtain an image of reflectors is a large volume of echo signals and an insufficiently high speed of their registration. To increase it, it is proposed to simultaneously emit sounding pulses by all elements of the antenna array (AR), formed by the sets of code sequences used in the Code Division Multiple Access (CDMA) technology. The measured echoes can be decoded using matched filtering (CF) and the reflectors can be reconstructed using the combined SAFT (C-SAFT) method. The image can be restored without decoding the measured echo signals by the ME method. The proposed technology was tested to obtain images of reflectors in samples of duralumin, steel 20 and steel 40.

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