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Full-Text Articles in Computer Engineering
Sampled Fiber Gratings For High-Resolution And High-Speed Photonic Signal Processing, Mingya Shen, Kamal Alameh
Sampled Fiber Gratings For High-Resolution And High-Speed Photonic Signal Processing, Mingya Shen, Kamal Alameh
Research outputs pre 2011
A novel sampled grating for high-resolution, highspeed signal processing is presented. Simulation based on Sinc2 sampled and rational sampled fiber grating modeling show that a large number of sub-ps time delay steps are attainable, corresponding to a sampling frequency in excess of 1THz. Design method is described for deriving sampling functions that meet specific true-time-delay profile requirements.
Success? The Impact Of Involving Customers In E-Commerce Development, Julian Terry, Craig Standing
Success? The Impact Of Involving Customers In E-Commerce Development, Julian Terry, Craig Standing
Research outputs pre 2011
In e-commerce, customers have become Information System users. In this environment of non-mandatory usage, remote, untrained users need to quickly feel comfortable and satisfied with a site encounter. Throughout the literature for four decades, a commonly cited factor pertaining to system success has been user participation in the systems development process. Among other things this is likely to lead to increased user satisfaction and the perceived usefulness of the application. This study uses findings from thirty cases of recently completed e-commerce sites in which project leaders accounts of customer participation in e-commerce development activities are analysed, along with their perceptions …
Use Of The Wfg Toolkit And Pisa For Comparison Of Moeas, Lucas Bradstreet, Luigi Barone, Lyndon While, Simon Huband, Philip Hingston
Use Of The Wfg Toolkit And Pisa For Comparison Of Moeas, Lucas Bradstreet, Luigi Barone, Lyndon While, Simon Huband, Philip Hingston
Research outputs pre 2011
Understanding the behaviour of different optimisation algorithms is important in order to apply the best algorithm to a particular problem. The WFG toolkit was designed to aid this task for multi-objective evolutionary algorithms (MOEAs), offering an easily modifiable framework that allows practitioners the ability to test different features by "plugging" in different forms of transformations. In doing so, the WFG toolkit provides a set of problems that exhibit a variety of different characteristics. This paper presents a comparison between two state of the art MOEAs (NSGA-II and SPEA2) that exemplifies the unique capabilities of the WFG toolkit. By altering the …
Passive And Active Optical Bit-Pattern Recognition Structures For Multiwavelength Optical Packet Switching Networks, Muhsen Aljada, Kamal Alameh
Passive And Active Optical Bit-Pattern Recognition Structures For Multiwavelength Optical Packet Switching Networks, Muhsen Aljada, Kamal Alameh
Research outputs pre 2011
Next generation High-Speed optical packet switching networks require components capable of recognising the optical header to enable on-the-fly accurate switching of incoming data packets to their destinations. This paper experimentally demonstrates a comparison between two different optical header recognition structures; A passive structure based on the use of Fiber Bragg Gratings (FBGs), whereas the active structure employs Opto-VLSI processors that synthesise dynamic wavelength profile through digital phase holograms. The structures are experimentally demonstrated at 10Gbps. Performance comparison between the two structures is also discussed. These optical header recognition structures are attractive for multiwavelength optical network and applications.