DATA TRANSFER RATE IN NOISY CHANNELS OF WIRELESS NETWORKS

Analysis of new technologies IEEE 802.11ac/ax of wireless networks showed that increasing their noise immunity is an actual task. The article studies the efficiency of fragmented data frames transmission. Comparison of the efficiencies in the case of retransmission of the corrupted original frame and in the case of its fragmentation in a wide range of the physical data transfer rates is carried out.

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Miniature Two-Axis Actuator for High-Data-Transfer-Rate Optical Data Storage System

Japanese Journal of Applied Physics ◽

10.1143/jjap.41.1804 ◽

2002 ◽

Vol 41 (Part 1, No. 3B) ◽

pp. 1804-1807 ◽

Cited By ~ 4

Author(s):

Gakuji Hashimoto ◽

Hiroki Shima ◽

Kenji Yamamoto ◽

Tsutomu Maruyama ◽

Takashi Nakao ◽

...

Keyword(s):

Data Storage ◽

Transfer Rate ◽

Data Transfer ◽

Storage System ◽

Optical Data Storage ◽

Optical Data ◽

Data Transfer Rate ◽

High Data ◽

Data Storage System

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Domain and write–read characteristics for magnetic field modulated magneto‐optical disk with high data transfer rate

Journal of Applied Physics ◽

10.1063/1.344460 ◽

1989 ◽

Vol 66 (12) ◽

pp. 6138-6143 ◽

Cited By ~ 15

Author(s):

Harukazu Miyamoto ◽

Toshio Niihara ◽

Hirofumi Sukeda ◽

Masahiko Takahashi ◽

Takeshi Nakao ◽

...

Keyword(s):

Magnetic Field ◽

Transfer Rate ◽

Data Transfer ◽

Optical Disk ◽

Data Transfer Rate ◽

High Data

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effective data transfer rate

10.1007/springerreference_13230 ◽

2011 ◽

Keyword(s):

Transfer Rate ◽

Data Transfer ◽

Data Transfer Rate

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Theoretical Study of a Surface Collinear Holographic Memory

Photonics ◽

10.3390/photonics6020070 ◽

2019 ◽

Vol 6 (2) ◽

pp. 70

Author(s):

Hirayama ◽

Fujimura ◽

Umegaki ◽

Tanaka ◽

Shimura

Keyword(s):

Data Storage ◽

Transfer Rate ◽

Data Transfer ◽

Coefficient Of Thermal Expansion ◽

Storage System ◽

Reconstructed Image ◽

Data Transfer Rate ◽

Holographic Memory ◽

High Data ◽

Volume Holograms

Holographic memory is currently attracting attention as a data storage system capable of achieving a data transfer rate of about 105~106105~106 times that of an optical disc such as Blu-ray disc. In conventional holographic memory, data is generally recorded by optical writing using volume holograms. However, a volume hologram has the problem not only that it is required to have high mechanical accuracy of a system and low coefficient of thermal expansion of a recording medium, because reconstruction tolerance is extremely low, but also that duplicating time efficiency is poor because whole data cannot be recorded at once. In this paper we proposed surface holographic memory that achieved a high data transfer rate, stable readout performance, and collective duplication by expressing holograms with fine surface asperity. Furthermore, the theoretical formulas of recording and reconstruction processes in the proposed system were derived and the reconstruction characteristics of the hologram were evaluated by numerical simulation. As a result, the proposed method generated reconstructed image readout with sufficient signal for a single page recording. However, the reconstructed image had noise, which was particular to a surface holographic memory.

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Using pit-depth modulation to increase capacity and data transfer rate in optical discs

10.1117/12.280677 ◽

1997 ◽

Cited By ~ 6

Author(s):

Stephan Spielman ◽

Bruce V. Johnson ◽

Greg A. McDermott ◽

Michael P. O'Neill ◽

C. Pietrzyk ◽

...

Keyword(s):

Transfer Rate ◽

Data Transfer ◽

Data Transfer Rate ◽

Optical Discs ◽

Pit Depth

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Feasibility Study on High Data Transfer Rate of 300 Mbit/s with 8-Beam Laser Diode Array

Japanese Journal of Applied Physics ◽

10.1143/jjap.32.5411 ◽

1993 ◽

Vol 32 (Part 1, No. 11B) ◽

pp. 5411-5416 ◽

Cited By ~ 15

Author(s):

Ryoichi Arai ◽

Makoto Mizukami ◽

Takaya Tanabe ◽

Kikuji Katoh ◽

Takashi Yoshizawa ◽

...

Keyword(s):

Feasibility Study ◽

Laser Diode ◽

Transfer Rate ◽

Data Transfer ◽

Diode Array ◽

Data Transfer Rate ◽

Laser Diode Array ◽

High Data ◽

Beam Laser

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Analiza właściwości wybranych rozwiązań rozproszonych systemów plików

Przegląd Teleinformatyczny ◽

10.5604/01.3001.0012.9738 ◽

2017 ◽

Vol 5 (23) (3) ◽

pp. 53-73

Author(s):

Karolina Kula ◽

Marcin Markowski

Keyword(s):

Comparative Analysis ◽

Transfer Rate ◽

Data Transfer ◽

File Systems ◽

Evaluation Criterion ◽

Distributed File Systems ◽

Data Transfer Rate ◽

Experimental Part ◽

Experimental Testbed

W artykule przedstawiono analizę porównawczą trzech najpopularniejszych rozproszonych systemów plików: Ceph, LizardFS, GlusterFS. Głównym kryterium oceny badanych systemów była ich wydajność, rozumiana jako liczba operacji zapisu i odczytu w jednostce czasu oraz maksymalny transfer danych. Analizę oparto na wynikach licznych eksperymentów przeprowadzonych w opracowanym w tym celu stanowisku badawczym. Część badawczą poprzedzono przeglądem technologii oraz najpopularniejszych istniejących systemów tego typu. W pracy przedstawiono wyniki eksperymentów, ich analizę oraz praktyczne wnioski. In this paper we present a comparative analysis of three most popular distributed file systems: Ceph, LizardFS nad GlusterFS. The main evaluation criterion was the efficiency of systems, meant as the number of read and write operation per second and maximum data transfer rate. The analysis is based on results of many experiments conducted in experimental testbed, prepared for this purpose. Experimental part of the paper is preceded with a survey of technology related to most important distributed file systems. The results of experiments have been presented and analyzed, also some practical conclusions have been formulated.

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