Now showing items 208-227 of 281

    • Performance of random diagonal code for OCDMA systems using new spectral direct detection technique 

      Hilal Adnan, Fadhil; Syed Alwee Aljunid, Syed Junid; R. Badlishah, Ahmad (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 

      Hilal Adnan, Fadhil; Syed Alwee Aljunid, Syed Junid; R. Badlishah, Ahmad (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 ...
    • Performance of the optical spectrum CDMA systems in FTTH access network 

      Mohamad Othman; Shah, N. S. M.; Noran Azizan, Cholan; Rahmat M. Talib; Samad, M. D. A .; Syed Alwee Aljunid, Syed Junid; Monir Khalil, Abdullah (Institute of Eelectrical and Electronics Engineering (IEEE), 2007-05)
      Double Weight (DW) code is presented here to support fiber-to-the-home (FTTH) access network in point-to-multipoint (P2MP) applications. This code with basic fixed weight of 2 possess ideal cross correlation properties, ...
    • The performance of two antenna design shapes in ultra-wideband wireless applications 

      Rashid A., Fayadh; Mohd Fareq, Abd. Malek, Dr.; Hilal Adnan, Fadhil, Dr.; Jaafar Adhab, ALdhaibani (Asian Research Publishing Network (ARPN), 2014)
      The extensive requirements for small Ultra wideband (UWB) communication systems lead to design active and small size antennas. In this research two rectangular microstrip antennas were designed to cover the UWB ...
    • The performance study of two genetic algorithm approaches for VLSI Macro-Cell layout area optimization 

      Hasliza, A. Rahim@Samsuddin; Rahman, A. A A; R. Badlishah, Ahmad; Wan Nur Suryani Firuz, Wan Ariffin; Muhammad Imran, Ahmad (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 ...
    • Phase-induced intensity noise reduction with improved group velocity dispersion tolerance in SAC-OCDMA systems 

      Hamza Mohammed Ridha, Al-Khafaji; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Amphawan, Angela, Dr.; Hilal Adnan, Fadhil, Dr.; Anuar, Mat Safar, Ir. Dr. (Engg Journals Publications, 2013-02)
      The demand for efficient optical communication systems has fuelled considerable research in developing techniques for eradicating phase-induced intensity noise (PIIN) in spectral-amplitude coding optical code-division ...
    • PIN versus Avalanche photodiode gain optimization in zero cross correlation optical code division multiple access system 

      Anuar, Mat Safar, Ir. Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Amir Razif Arief, Jamil Abdullah; Junita, Mohd Nordin; Mohamad Naufal, Mohamad Saad, Assoc. Prof. Dr. (Elsevier GmbH, 2013-02)
      In this paper, we show details of zero cross correlation (ZCC) code development and investigate performance by measuring bit-error-rates compared to other optical code division multiple access (OCDMA) codes using Avalanche ...
    • A platform to develop a secure instant messaging using jabber protocol 

      Al-Saadoon, Ghossoon, .M. W. (Science Publications, 2009)
      Problem statement: Open Source technologies are interesting in that they allow free experimentation and integration by anyone and anywhere. A Jabber user can control presence with very little effort. Another user, regardless ...
    • PNN based driver drowsiness level classification using EEG 

      Mousa Kadhim, Wali; Murugappan, Muthusamy, Dr.; R. Badlishah, Ahmad, Prof. Dr. (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 ...
    • Potential of Nanocellulose Composite for Electromagnetic Shielding 

      Nurul Fatihah Nabila, Yah; Hasliza, A. Rahim; Yeng Seng, Lee; Wee, Fwen Hoon; Mohd Fareq, Malek; Nik Adilah Hanin, Zahri; Hayati Hasibuan, Zainal (EDP Sciences, 2017)
      Nowadays, most people rely on the electronic devices for work, communicating with friends and family, school and personal enjoyment. As a result, more new equipment or devices operates in higher frequency were rapidly ...
    • The potentials of OCDM technique for local area network 

      Syed Alwee Aljunid, Syed Junid; Dayang Khadijah, Hamzah; Shariffah Zarihan, Syed Zaharim Helmi; Anuar, Mat Safar; Azremi, Abdullah Al Hadi; Mohamad Khazani, Abdullah (Institute of Electrical and Electronics Engineering (IEEE), 2006)
      Evolution of the optical fiber systems is currently seeing the general acceptance of wavelength division multiplexing (WDM) as the best mechanisms in increasing the transmission capacity of fiber optics. However, there are ...
    • Preliminary development of mini anechoic chamber 

      Hasnain, A.; Imran, M.I.; Rohaiza, Z.S.; Roslan, S.; Takiyuddin, A.A.; Rusnani, A.; Azremi, Abdullah Al Hadi (Institute of Electrical and Electronics Engineering (IEEE), 2007)
      The purpose of mini anechoic chamber is to allow cost effective testing of microwave signal. It is because measurements of the radiation pattern are usually done in an anechoic chamber in order to avoid reflections from ...
    • Preparation and characterization of silica aerogel immobilized with cyanex 301 for extraction of Zn(II) 

      Mst. Noorzahan, Begum, Dr.; Md Fazlul, Bari, Dr.; Salmie Suhana, Che Abdullah; Khairel Rafezi, Ahmad, Dr.; Nasim, Ahmed, Dr. (Trans Tech Publications, 2013)
      A new solid phase extractant silica aerogel immobilized with Cyanex 301 {bis(2,4,4- trimethylpentyl) dithiophosphinic acid} (SAWC) was prepared via a sol- gel method and investigated for the extraction of Zn(II) from aqueous ...
    • Priority-based parameter optimization strategy for reducing the effects of four-wave mixing on WDM system 

      Haider J., Abed; Mohammed Hayder, Al-Mansoori; Norashidah, Md. Din, Prof. Ir. Dr.; Fairuz, Abdullah, Dr.; Hilal Adnan, Fadhil, Dr. (Elsevier, 2014)
      In order to meet the ultra high speed and ultra long-haul transmission distance in wavelength division multiplexing (WDM) systems, the nonlinear impairment affecting the overall spectral efficiency and system performance ...
    • Priority-based parameter optimization strategy for reducing the effects of four-wave mixing on WDM system 

      Haider J., Abed; Mohammed Hayder, Al-Mansoori; Norashidah, Md. Din, Ir. Dr.; Fairuz, Abdullah, Dr.; Hilal Adnan, Fadhil, Dr. (Elsevier, 2014-01)
      In order to meet the ultra high speed and ultra long-haul transmission distance in wavelength division multiplexing (WDM) systems, the nonlinear impairment affecting the overall spectral efficiency and system performance ...
    • Proficient feature extraction strategy for performance enhancement of NN based early breast tumor detection 

      Khondker Jahid, Reza; Sabira, Khatun, Prof. Dr.; Mohd. Faizal, Jamlos, Dr.; Ikram, E-Khuda; Zahereel Ishwar, Abdul Khalib, Dr. (Engg Journals Publications, 2013)
      Ultra Wideband is one of the promising microwave imaging techniques for breast tumor prognosis. The basic principle of tumor detection depends on the dielectric properties discrepancies between healthy and tumorous tissue. ...
    • Propose approach for UDP random and sequential scanning detection based on the connection failure messages 

      Mohammed F.R., Anbar; Ramadass, Sureswaran, Prof.; Manickam, Selvakumar; Alhamza, Munther; Esraa, Alomari (Praise Worthy Prize S.r.l., 2013-11)
      Network scanning usually lunched by attackers for exploring and gathering information about the target network, this information may includes the network topology and services running on the network, based on the gathered ...
    • Pulse sign separation technique for the received bits in wireless ultra-wideband combination approach 

      Rashid, A. Fayadh; F., Malek; Hilal A., Fadhil (Hindawi Limited, 2014)
      When receiving high data rate in ultra-wideband (UWB) technology, many users have experienced multiple-user interference and intersymbol interference in the multipath reception technique. Structures have been proposed for ...
    • Realization of wavelength-time modified double weigs-button-field 

      Amir Razif Arief, Jamil Abdullah, Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Anuar, Mat Safar, Ir. Dr.; R. Badlishah, Ahmad, Prof. Dr.; Junita, Mohd Nordin; Mohd Rashidi, Che Beson (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 ...
    • Recent four-wave mixing suppression methods 

      Abeda, H.J.; Din, N. M.; Al-Mansoori, M.H.; Fadhil, H.A.; Abdullah, F. (Elsevier Ltd., 2012-09)
      This paper reviews various techniques that have been proposed by many researchers to reduce the effect of four-wave mixing (FWM). A review was suggested to investigate the recent method of each technique and to compare ...