High Bandwidth Anomalies in Cluster and Grid Data Transfer

2007 ◽  
Author(s):  
Carlo Barrios-Hernandez ◽  
Yves DENNEULIN ◽  
Michel RIVEILL
Keyword(s):  
Data Transfer ◽  
Grid Data ◽  
High Bandwidth

scholarly journals REGION SPECIFIC WAVELET COMPRESSION FOR 4K SURVEILLANCE IMAGES

2017 ◽  
Vol 10 (13) ◽  
pp. 247
Author(s):  
Ankush Rai ◽  
Jagadeesh Kannan R
Keyword(s):  
Image Compression ◽  
Information Flow ◽  
Information Transfer ◽  
Data Transfer ◽  
Image Sequences ◽  
Successful Transmission ◽  
Specific Approach ◽  
Time Compression ◽  
High Bandwidth ◽  
Transfer Cost

For successful transmission of massively sequenced images during 4K surveillance operations large amount of data transfer cost high bandwidth, latency and delay of information transfer. Thus, there lies a need for real-time compression of this image sequences. In this study we present a region specific approach for wavelet based image compression to enable management of huge chunks of information flow by transforming Harr wavelets in hierarchical order.   

TRIPWIRE: A SYNCHRONISATION PRIMITIVE FOR VIRTUAL MEMORY MAPPED COMMUNICATION

2001 ◽  
Vol 02 (03) ◽  
pp. 345-364 ◽  
Author(s):  
DAVID RIDDOCH ◽  
STEVE POPE ◽  
DEREK ROBERTS ◽  
GLENFORD MAPP ◽  
DAVID CLARKE ◽  
...  
Keyword(s):  
Message Passing ◽  
Data Transfer ◽  
Distributed Shared Memory ◽  
Virtual Memory ◽  
Communication Styles ◽  
Network Interface ◽  
High Bandwidth ◽  
Memory Network ◽  
Network Abstraction ◽  
Network Interfaces

Existing user-level network interfaces deliver high bandwidth, low latency performance to applications, but are typically unable to support diverse styles of communication and are unsuitable for use in multiprogrammed environments. Often this is because the network abstraction is presented at too high a level, and support for synchronisation is inflexible. In this paper we present a new primitive for in-band synchronisation: the Tripwire. Tripwires provide a flexible, efficient and scalable means for synchronisation that is orthogonal to data transfer. We describe the implementation of a non-coherent distributed shared memory network interface, with Tripwires for synchronisation. This interface provides a low-level communications model with gigabit class bandwidth and very low overhead and latency. We show how it supports a variety of communication styles, including remote procedure call, message passing and streaming.

A High Bandwidth Signal Generation System Based on FPGA

2012 ◽  
Vol 198-199 ◽  
pp. 1743-1747
Author(s):  
Xu Guang Lu ◽  
Ji Hua Tian ◽  
Xiao Han ◽  
Jin Ping Sun
Keyword(s):  
Data Transfer ◽  
Synthesis Method ◽  
System Structure ◽  
Signal Generation ◽  
Test Results ◽  
Generation System ◽  
Electronic Warfare ◽  
Wideband Signal ◽  
High Bandwidth ◽  
Wave Synthesis

A Wideband Signal Generation System for radar and Electronic Warfare is presented. This system uses two DACs each can work at 1Gsps with 14-bit resolution and generate 500MHz bandwidth signal. The DDWS (Direct digital wave synthesis) method is used for signal generation and the data transfer and controlling is based on FPGA. The data for signal generation is stored in ZBT-SRAM and the system can communicate with the controller module through PC104+ interface. The system structure, implementation and test results are described in detail.

scholarly journals RapidXfer - data transfer framework for square kilometre array

2021 ◽  
Author(s):  
Priyaa Thavasimani
Keyword(s):  
Comparative Study ◽  
Data Management ◽  
Radio Telescope ◽  
Data Transfer ◽  
Grid Data ◽  
Square Kilometre Array ◽  
Advantages And Disadvantages ◽  
End To End

AbstractData Management of Astronomy Data is often a laborious task and it is even more challenging for the extraordinary amounts of data expected from the world’s largest radio telescope, Square Kilometre Array. There are overt issues in transferring the voluminous data and the traditional data transfer methods are fragile especially for the data transfer between two continents. To address this, a new data transfer framework is proposed and the data transfer is achieved using two steps: international and local transfers. The efficiency of different end-to-end data transfer tools used in is evaluated on different dataset sizes. Further, a comparative study of two IRIS grid data transfer methods is made to understand each methods’ advantages and disadvantages. This study can be used as a reference for the development of future SKA’s data transfer operations.

scholarly journals Multiband antenna using stacked series array for Ka-Band application

2019 ◽  
Vol 8 (3) ◽  
pp. 1004-1013
Author(s):  
Rauful Nibir ◽  
Islam Md. Rafiqul ◽  
Mohamed Hadi Habaebi ◽  
Sarah Yasmin ◽  
Naimul Mukit ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Data Transfer ◽  
High Gain ◽  
Dual Band ◽  
Resonant Frequencies ◽  
Ka Band ◽  
Multiband Antennas ◽  
High Bandwidth ◽  
Test Result ◽  
Triple Band

In this paper, a multiband stack series array antenna is designed in order to attain solutions for the future 28 GHz Ka-band application. Double layer substrate Technology is utilized to accomplish multiple resonant frequencies with higher data transfer capacities due to high bandwidth. The designed antenna is dependent on twofold layer consisting patches and resonators in different layers stacked together. The designed multiband antennas can resonate at single band of (28 GHz), dual band of (28 and 30 GHz) and triple band of (24.18, 26 and 28.453). The results achieved in the simulation are later fabricated and tested. The test result illustrates that the antennas have wide bandwidth, high gain and even higher efficiencies. All the proposed antenna configurations have demonstrated a decent possibility for 5G millimeter wave (mmwave) application.

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