School of Computer and Communication Engineering (Articles): Recent submissions

Now showing items 181-200 of 281

    • Nano and micro porous GaN characterization using image processing method 

      Ahmed, Naser Mahmoud; Ramizy, Asmiet; Hassan, Z.; Ali, Amer; Khalib, Omar; Yarub, Al-Douri, Prof. Madya Dr. (Elsevier GmbH, 2012-06)
      This work reports the fabrication of porous N-GaN structures and their quantitative structural characteristic study based on mathematical morphology analysis using scanning electron microscope (SEM) images. The evaluation ...

    • Variable cross-correlation code construction for spectral amplitude coding optical CDMA networks 

      Hilal Adnan, Fadhil, Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hassan Y., Ahmed; Hamza Mohammed Ridha, Al-Khafaji (Elsevier Ltd., 2012-06)
      We present, for the first time, several aspects of incoherent optical code-division multiple access (OCDMA) codes, focusing on the flexible variable cross-correlation code allocation and its potential for future optical ...

    • Multi-antenna mobile terminal diversity performance in proximity to human hands under different propagation environment conditions 

      Azremi, Abdullah Al Hadi; Papamichael, Vasilis Christos; Vainikainen, Pertti V. (The Institution of Engineering and Technology, 2011-10-27)
      The effective diversity gain (EDG) of a four-element planar inverted-F antenna array, which operates at 3500MHz in the proximity to one hand in data-mode grip and two hands in browsing-mode grip, is predicted using a ...

    • Hybrid OCDMA over WDM system using modified double weight (MDW) code for optical access network 

      Nasim, Ahmed; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; R. Badlishah, Ahmad, Prof. Madya Dr.; Mohd Abdur, Rashid, Dr. (Trans Tech Publications, 2012)
      In this paper a hybrid optical code division multiple access (OCDMA) over wavelength division multiplexing (WDM) network is proposed to support large number of subscribers. The system combines two different techniques, ...

    • Disinfestation of Rhyzopertha dominica (F.) using microwave heat treatment to the Malaysian paddy 

      Manjur, Ahmed; Fareq, Malek, Dr.; R., Badlishah Ahmad, Assoc. Prof. Dr.; Md. Mostafijur, Rahman; Khairudi, Mohd Juni (World Academy of Science, Engineering and Technology (WASET), 2011-09)
      Dielectric spectroscopy was used to analyze Rhyzopertha dominica (F.) or lesser grain borer for microwave heat treatment to Malaysian paddy MR219. The temperature dependency of the dielectric properties of Rhyzopertha ...

    • Enhancement of performance of a hybrid SAC–OCDMA system using dynamic cyclic shift code 

      Thanaa Hussein, Abd; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; R. Badlisyah, Ahmad, Prof. Madya Dr.; Juwita, Mohd Nordin (Institute of Physical Optics, 2012)
      A hybrid subcarrier multiplexing (SCM) technique incorporating spectral amplitude coding and optical code division multiple access (SAC-OCDMA) technologies is investigated using both numerical and simulation methods. The ...

    • A Multi band mini printed omni directional antenna with v-shaped for RFID applications 

      Evizal; Tharek, Abd. Rahman, Prof. Dr.; Shahrul Kamal, Abd Rahim, Prof. Madya Dr. Ir.; Mohd Faizal, Jamlos, Dr. (EMW Publishing, 2011)
      This paper presents a mini multi-band printed omni-directional antenna with v-shaped structure for radio frequency identification (RFID) applications. The proposed multi-band antenna is developed from the initial v-shaped ...

    • Development of a new code family based on SAC-OCDMA system with large cardinality for OCDMA network 

      Thanaa Hussein, Abd; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil; R. A., Ahmad; Mohamad Naufal, Mohamad Saad, Dr. (Elsevier Inc., 2011-07)
      We have proposed a new Multi-Diagonal (MD) code for Spectral Amplitude - Coding Optical Code Division Multiple Access (SAC-OCDMA). Although this new MD code has many properties, one of the important properties of this code ...

    • Performance evaluation of TCP Vegas versus different TCP variants in homogeneous and heterogeneous wired networks 

      B. S., Yew; Ong, Bi Lynn; R. Badlishah, Ahmad, Prof. Madya Dr. (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 ...

    • Coupling element-based dual-antenna structures for mobile terminal with hand effects 

      Abdullah Al-Hadi, Azremi; Ilvonen, Janne; Valkonen, Risto; Holopainen, Jari; Kivekäs, Outi; Icheln, Clemens (Springerlink, 2011-09)
      This paper presents a comprehensive simulation study on the performance of coupling element-based dual-antenna structures on a mobile terminal at the 2,000 MHz Universal Mobile Telecommunications System (UMTS) frequency ...

    • Setup and results of pyramidal microwave absorbers using rice husks 

      Nornikman, Hassan; Fareq, Malek, Dr.; Ahmed, M.; Wee, Fwen Hoon; Soh, Ping Jack; Azremi, Abdullah Al Hadi, Dr.; Ghani, S. A.; Hasnain, A.; Taib, M. N. (EMW Publishing, 2011)
      Agricultural wastes are considered not useful and are commonly dumped or burned after crop harvesting. Rice husks from paddy (Oryza sativa) are example of agricultural wastes. Rice husks have been investigated as the ...

    • Wearable dual-band Sierpinski fractal PIFA using conductive fabric 

      Soh, Ping Jack; Vandenbosch, G. A. E.; Ooi, S. L.; Husna, M. R. N. (Institute of Electrical and Electronics Engineers (IEEE), 2011-03-17)
      A novel planar inverted-F antenna (PIFA), incorporating a triangular Sierpinski gasket, is presented. The used conducting textile and polyester fleece allow easy on-body integration and simple practical fabrication. It ...

    • FPGA implementation for GMM-based speaker identification 

      EhKan, Phaklen; Allen, Timothy; Quigley, Steven F. (Hindawi Publishing Corporation, 2011)
      In today's society, highly accurate personal identification systems are required. Passwords or pin numbers can be forgotten or forged and are no longer considered to offer a high level of security. The use of biological ...

    • Face recognition using eigenfaces and neural networks 

      Mohamed Rizon; Muhammad Firdaus, Hashim; Puteh, Saad; Sazali, Yaacob, Prof. Dr.; Mohd Rozailan, Mamat; Ali Yeon, Md Shakaff, Prof. Dr.; Abdul Rahman, Saad; Hazri, Desa, Dr.; Karthigayan, M. (Science Publications, 2006)
      In this study, we develop a computational model to identify the face of an unknown person’s by applying eigenfaces. The eigenfaces has been applied to extract the basic face of the human face images. The eigenfaces is ...

    • Object detection using circular hough transform 

      Mohamed Rizon; Haniza, Yazid; Puteh, Saad; Ali Yeon, Md Shakaff, Prof. Dr.; Abdul Rahman, Saad; Sugisaka, Masanori; Sazali, Yaacob, Prof. Dr.; M. Rozailan, Mamat; Karthigayan, M. (Science Publications, 2005)
      In this study we propose a new system to detect the object from an input image. The proposed system first uses the separability filter proposed by Fukui and Yamaguchi (Trans. IEICE Japan J80-D-II. 8, 2170-2177, 1997) to ...

    • Object detection using geometric invariant moment 

      Mohamed Rizon; Haniza, Yazid; Puteh, Saad; Ali Yeon, Md Shakaff, Prof. Dr.; Abdul Rahman, Saad; Mohd Rozailan, Mamat; Sazali, Yaacob, Prof. Dr.; Hazri, Desa, Dr.; Karthigayan, M. (Science Publications, 2006)
      Geometric moment invariant produces a set of feature vectors that are invariant under shifting, scaling and rotation. The technique is widely used to extract the global features for pattern recognition due to its ...

    • Design and development of wireless communication transceiver to support RFID reader at UHF band 

      Mohammad Shahrazel, Razalli; Mohd Azir, Mahdi, Prof. Madya Dr.; Alyani, Ismail, Dr.; Siti Mariam, Shafie; H., Adam (Brill Academic Publishers, 2010-11-01)
      This paper discusses the design and development of wireless transceiver to support communication between Radio Frequency Identification (RFID) reader and host computer. The transceiver is designed and developed to operate ...

    • A low-power X-band free electron laser by prebunching of the electrons 

      Mohd Fareq, Abdul Malek, Dr.; Lucas, James; Yi, Huang (Wiley Periodicals, Inc., 2010-11)
      We are developing a prototype free electron laser that is compact, low cost, and low power. The design, setup, and results of a novel X-band rectangular waveguide prebunched free electron laser (PFEL) are presented in this ...

    • A CWDM/DWDM arrayed waveguide grating based on photodefinable polymer 

      Ibrahim, M. H.; Kassim, N. M.; Mohammad, Abu Bakar; Ismahayati, Adam (Institutul National de Cercetare-Dezvoltare pentru Optoelectronica, 2009-01)
      New design of conventional AWG structures for CWDM/DWDM application based on photodefinable BenzoCyclobutene (BCB 4024-40) polymer is presented. The devices are designed on BK7 glass substrate and thin layer of SiO2 as ...

    • An overview of low density parity check codes 

      Abid, Yahya; Farid, Ghani; R. Badlishah, Ahmad, Prof. Madya Dr.; Malook, Raj (Asian Network for Scientific Information, 2010-07-10)
      Not available