Phaklen Ehkan, Assoc. Prof. Dr.This page provides access to scholarly publications by UniMAP Faculty members and researchers.http://dspace.unimap.edu.my:80/xmlui/handle/123456789/392032024-03-28T21:36:38Z2024-03-28T21:36:38ZA new perceptual mapping model using Lifting Wavelet TransformTahaBasheer, TahaPhaklen, EhkanRuzelita, Ngadiranhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/692712021-01-07T09:46:12Z2017-01-01T00:00:00ZA new perceptual mapping model using Lifting Wavelet Transform
TahaBasheer, Taha; Phaklen, Ehkan; Ruzelita, Ngadiran
Perceptual mappingapproaches have been widely used in visual information processing in multimedia and internet of things (IOT) applications. Accumulative Lifting Difference (ALD) is proposed in this paper as texture mapping model based on low-complexity lifting wavelet transform, and combined with luminance masking for creating an efficient perceptual mapping model to estimate Just Noticeable Distortion (JND) in digital images. In addition to low complexity operations, experiments results show that the proposed modelcan tolerate much more JND noise than models proposed before
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2017-01-01T00:00:00ZEnergy efficient segmentation-link strategies for transparent IP over WDM core networksMohd Nazri, Mohd WaripIvan, AndonovicIvan GleskPhaklen, Ehkan, Dr.Fairul Afzal, Ahmad FuadMohamed Elshaikh Elobaid, Said Ahmedhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/350532014-06-04T04:35:48Z2014-01-01T00:00:00ZEnergy efficient segmentation-link strategies for transparent IP over WDM core networks
Mohd Nazri, Mohd Warip; Ivan, Andonovic; Ivan Glesk; Phaklen, Ehkan, Dr.; Fairul Afzal, Ahmad Fuad; Mohamed Elshaikh Elobaid, Said Ahmed
Recent developments in Optical IP networks have heightened the need for reduction on power consumption via so called green photonics and concepts known as green networking. Adhering to these principles we proposed a novel energy savings approach which can be applied to optical IP networks and is based on so called “hibernation mode with segmentation link” technique. The hibernation mode technique is designed to help to reduce power consumption by sleep the network links and can help to optimise network overall energy usage by taking advantage of the hibernation algorithms we have developed. The proper implementation over the network infrastructure will save energy, operating cost to network operators, and while at the same time will also deliver reduced carbon footprint. In this paper, we show design model for developing energy efficient Segment-Link approach. In this scheme, the improvised energy saving techniques focus on selective sleeping of optical core fibre links, following which the Routing Wavelength Assignment algorithm based on GMPLS control plane are investigated. Simulation models and results for the proposed scheme are evaluated in both the fibre link only and segmentation-link schemes scenarios. The results shows that a significant amount of energy can be saved if appropriate “segmentation-link” mechanisms using optical bypass and traffic grooming is invoked.
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2014-01-01T00:00:00Z