Browsing R. Badlishah Ahmad, Prof. Ir. Ts. Dr. by Title
Now showing items 108-127 of 147
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Performance evaluation of Fi-Wi network based on SCM-optical code division multiple access architecture
(Elsevier GmbH, 2013-10)This paper investigates the performance of a spectral amplitude coding (SAC)-OCDMA system design utilizing subcarrier multiplexing techniques for use in the popular fiber-wireless (Fi-Wi) technology. Zero cross correlation ... -
Performance evaluation of TCP Vegas versus different TCP variants in homogeneous and heterogeneous wired networks
(World Academy of Science, Engineering and Technology (WASET), 2011-02)A study on the performance of TCP Vegas versus different TCP variants in homogeneous and heterogeneous wired networks are performed via simulation experiment using network simulator (ns-2). This performance evaluation ... -
Performance improvement of spectral amplitude coding-optical code division multiple access systems using NAND detection with enhanced double weight code
(The Optical Society of Japan, 2012-01)The bit-error rate (BER) performance of the spectral amplitude coding-optical code division multiple access (SACOCDMA) system has been investigated by using NAND subtraction detection technique with enhanced double weight ... -
Performance of random diagonal code for OCDMA systems using new spectral direct detection technique
(Elsevier Inc, 2009-01-31)This paper studies the performance of random diagonal (RD) code for spectral-amplitude coding OCDMA (SAC-OCDMA) system using a newly proposed spectral direct detection technique. RD code is constructed using code segment ... -
Performance of random diagonal code for OCDMA systems using new spectral direct detection technique
(Elsevier Inc., 2009-06)This paper studies the performance of random diagonal (RD) code for spectral-amplitude coding OCDMA (SAC-OCDMA) system using a newly proposed spectral direct detection technique. RD code is constructed using code segment ... -
The performance study of two genetic algorithm approaches for VLSI Macro-Cell layout area optimization
(Institute of Electrical and Electronics Engineering (IEEE), 2008)Very large scale integrated (VLSI) design has been the subject of much research since the early 1980s where the VLSI cell placement emerges to be a crucial stage in the chip design. Its area optimization is very important ... -
PNN based driver drowsiness level classification using EEG
(JATIT & LLS. All rights reserved, 2013-06)In this work, we classify the driver drowsiness level (awake, drowsy, high drowsy and sleep stage1) based on different wavelets and probabilistic neural network classifier using wireless EEG signals. Deriving the amplitude ... -
Portable Network Aquisition System using Single Board Computer & GNU/Linux
(Universiti Malaysia Perlis (UniMAP), 2008-03-15)bstrac: Due to the increase in the use of the World-wide Web and other applications, determining which host and which application generates how much network traffic is becoming critical in managing and using network ... -
Power-limited spectral amplitude coding OCDMA system using random diagonal code with and without optical amplifiers
(Institute of Electrical and Electronics Engineering (IEEE), 2008)A new code structure for spectral amplitude coding in optical code division multiple access (OCDMA) systems called Random Diagonal (RD) code is proposed. RD code is constructed using code level and data level. One of the ... -
Prolonging lifetime of wireless sensor networks with mobile base station using particle swarm optimization
(Institute of Electrical and Electronics Engineers (IEEE), 2011-04-19)Wireless sensor networks are a family of networks in wireless communication system and have the potential to become significant subsystem of engineering applications. In view of the fact that the sensor nodes in wireless ... -
Propagation model for wireless sensor networks: Review and modeling
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)In simulation environments, prediction of path losses, maximum communication coverage for each node and received signal strength are calculated by using propagation model. However, most of the simulation tools only offer ... -
Proposal: Fundamental study of spectral slicing wavelength division multiplexing (WDM) system
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)Since the inception of optical fiber communication in 1974, their transmission capacity has experienced a tremendous increase in the years after. Several technology advances spurred its growth. But its use was kept to long ... -
Random diagonal codes for spectral amplitude coding optical CDMA systems using fiber Bragg-Grating
(Institute of Electrical and Electronics Engineering (IEEE), 2008-08-26)In this paper we study the use of a new code called Random Diagonal (RD) code for Spectral Amplitude Coding (SAC) optical Code Division Multiple Access (CDMA) networks, using Fiber Bragg-Grating (FBG), FBG consists of a ... -
Realization of wavelength-time modified double weigs-button-field
(Trans Tech Publications, 2014)Explosive growth of bandwidth demand together with advance in latest communication services and emerging applications have inspired interest in optical code division multiple access (OCDMA). The work focuses on analysis ... -
Rehabilitation systems for physically disabled patients: A brief review of sensor-based computerised signal-monitoring systems
(Scientific Publishers of India, 2013)This brief review addresses the existing systems and challenges and provides future recommendations on computer- and biosensor-assisted rehabilitation systems for physically disabled patients. We further list the types of ... -
Review and modeling of vegetation propagation model for wireless sensor networks using OMNeT++
(Institute of Electrical and Electronics Engineers (IEEE), 2010-09-22)In simulation environments, prediction of path losses, maximum communication coverage for each node and received signal strength are calculated by using propagation model. However, most of the simulation tools only offer ... -
Secured and robust information hiding scheme
(Malaysian Technical Universities Network (MTUN), 2012-11-20)The sensitivity of the digital work made it susceptible to many accidental dangers. Accordingly, it has become necessary for the secret data to be protected, identified and extracted. As a result, many researchers have ... -
Secured and robust information hiding scheme
(Elsevier B.V., 2013)The sensitivity of the digital work made it susceptible to many accidental dangers. Accordingly, it has become necessary for the secret data to be protected, identified and extracted. As a result, many researchers have ... -
Security protection using Simple Object Access Protocol (SOAP) messages techniques
(Institute of Electrical and Electronics Engineering (IEEE), 2008-12-01)Web Services are modular and distributed applications and are based on industry standard technologies. Nowadays, a message traveling through Internet is relatively simple to be read or modified [1]. This is due to the ... -
Significance of the electromyographic analysis of the upper limb muscles of cricket bowlers: Recommendations from studies of overhead-throwing athletes
(World Scientific Publishing Company., 2014-08)The purpose of this study was twofold: (i) to review the existing literature on electromyographic (EMG) analysis of the upper limb muscles of present overhead-throwing (OT) athletes during throwing and of cricket bowlers ...