Browsing Syed Alwee Aljunid Syed Junid, Prof. Ir. Ts. Dr. by Title

Now showing items 86-105 of 123

    • Performance analysis of hybrid OCDMA/WDM system for metro area network 

      Nasim, Ahmed, Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; R. Badlishah, Ahmad, Prof. Dr.; Nizam Uddin, Ahamed; Matiur J., Rahman (Walter de Gruyter Berlin/Boston, 2014-03)
      In this study a hybrid spectral amplitude coding for optical code division multiple access (i.e., called OCDMA) over wavelength division multiplexing (WDM) network is proposed to support large number of subscribers. The ...

    • Performance analysis of multipath routing based on source routing 

      N. Z., Ali; R. Badlishah, Ahmad, Prof. Madya Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Madya (Universiti Malaysia Pahang (UMP), 2009-06-20)
      Mobile AdHoc Networks (MANETs) is a collection of mobile hosts forming a temporary network without the aid of any established infrastructure or centralized administration, and they interact with each other over wireless ...

    • Performance analysis of optical zero cross correlation in OCDMA system 

      Anuar, Mat Safar; Syed Alwee Aljunid, Syed Junid; R. Badlishah, Ahmad; Saad, N.M.; Andonovic, I. (Asian Network for Scientific Information, 2007)
      We propose a new code structure for Spectral-Amplitude Coding Optical Code Division Multiple Access (OCDMA) systems with zero cross-correlation and theoretically demonstrate the performance of this code by using a direct ...

    • Performance analysis of wavelength multiplexed SAC OCDMA codes in beat noise mitigation in SAC OCDMA systems 

      Ahmed M., Alhassan; Nasreen, Badruddin, Dr.; Mohamad Naufal, Mohamad Saad; Syed Alwee Aljunid, Syed Junid, Prof. Dr. (European Optical Society, 2013-07)
      In this paper we investigate the use of wavelength multiplexed spectral amplitude coding (WM SAC) codes in beat noise mitigation in coherent source SAC OCDMA systems. A WM SAC code is a low weight SAC code, where the whole ...

    • Performance analysis on MDW code in FTTH access network using PIN & APD photodiode 

      Muthana. Y., Aldouri; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; R. Badlishah, Ahmad, Prof. Madya Dr.; Hilal Adnan, Fadhil, Dr. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      In order to comprise between PIN photo detector and avalanche photodiodes in a system used modified double weight (MDW) code to be a performance of the optical spectrum CDMA in FTTH network with point-to-multi-point ...

    • Performance comparison of Triangle Antenna of 60 GHz for 5G Wireless Communication Network 

      Aishah, S. A.; Mohd Rashidi, Che Beson; Saidatul Norlyana, Azemi; Syed Alwee Aljunid, Syed Junid (EDP Sciences, 2017)
      In this paper microstrip triangle with slot antenna for 5G wireless communication network are proposed. The microstip triangle antenna is design and operating 60 GHz milimeter-wave frequency band and it's suitable for 5G ...

    • Performance enhancement of OCDMA system using NAND detection with 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. Dr.; Mohd Abdur Rashid, Dr. (Elsevier GmbH, 2013-07)
      In this paper, we have extensively analyzed the OCDMA system performance using modified double weight (MDW) code with NAND detection technique as newly developed by the authors. In theoretical analysis, various noises and ...

    • Performance Evaluation of a Novel Optimization Sequential Algorithm (SeQ) Code for FTTH Network 

      Fazlina, C. A. S.; Mohd Rashidi, Che Beson; Rahman, A. K.; Syed Alwee Aljunid, Syed Junid (EDP Sciences, 2017)
      The SeQ codes has advantages, such as variable cross-correlation property at any given number of users and weights, as well as effectively suppressed the impacts of phase induced intensity noise (PIIN) and multiple access ...

    • Performance evaluation of downlink design based on free space optical system 

      Anis Afina, Azman; Mohd Rashidi, Che Beson; Rahman, A. K.; Syed Alwee Aljunid, Syed Junid; Yaakob, S. (EDP Sciences, 2017)
      In this paper, the performance of downlink design utilizing the free space optic (FSO) is presented. The permissible BER of 10-58 is achieved when the system utilized 40 cm aperture diameter. The highest system sensitivity ...

    • Performance evaluation of Fi-Wi network based on SCM-optical code division multiple access architecture 

      Junita, Mohd Nordin; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Rosemizi, Abd. Rahim; Anuar, Mat Safar, Ir. Dr.; Amir Razif Arief, Jamil Abdullah, Dr.; R. Badlishah, Ahmad, Prof. Dr.; Mohamad Naufal, Mohamad Saad (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 SAC-OCDMA using direct detection techniques 

      Norazimah, M. Z.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr. (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      In optical code division multiple access (OCDMA), noise give a big effect in degrading the performance of the system. Theoretically, direct detection technique can successfully suppressed or eliminate the dominant noise ...

    • Performance improvement of spectral amplitude coding-optical code division multiple access systems using NAND detection with enhanced double weight code 

      Nasim, Ahmed; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; R. Badlishah, Ahmad, Assoc. Prof. Dr. (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 OCDMA system using and subtraction technique based on EDW code 

      Shaban, Ihsan; Hasoon, Feras N.; Syed Alwee Aljunid, Syed Junid; Sahbudin, Shaari (Fachverlag Schiele & Schoen GmbH, 2008)
      In this paper we will present a full theoretical analysis for detection scheme proposed for spectral amplitude coding-optical code multiple access (SAC-OCDMA) system that using enhanced double weight (EDW) code, the detection ...

    • Performance of OCDMA systems using a complementary subtraction technique 

      Hasoon, Feras N.; Mohamad Khazani, Abdullah; Syed Alwee Aljunid, Syed Junid; Sahbudin, Shaari (Optical Society of America, 2007)
      What we believe to be a new code structure to reduce the multiple access interference in a spectral amplitude coding optical code-division multiple access system based on double-weight code families is proposed. Enhanced ...

    • Performance of OCDMA systems with new spectral direct detection (SDD) technique using enhanced double weight (EDW) code 

      Mohamad Khazani, Abdullah; Hasoon, Feras N.; Syed Alwee Aljunid, Syed Junid; Sahbudin, Shaari (Elsevier B.V., 2008-09-15)
      This paper investigates the performance of enhanced double weight (EDW) code for spectral-amplitude-coding OCDMA (SAC-OCDMA) system using a newly proposed spectral direct detection (SDD) technique. EDW is the enhanced ...

    • Performance of optical OFDM systems using new PAPR reduction approach 

      Hilal Adnan, Fadhil; Hasoon, Feras N.; Syed Alwee Aljunid, Syed Junid; Ahmad, H. Y.; Hamza Mohammed Ridha, Al-Khafaji (EBSCO Publishing., 2012-03)
      The major drawback of optical orthogonal frequency division multiple access (OFDM) system is their inherent intensity noise and peak average power ratio (PAPR). We introduce a new direct detection receiver based on PAPR ...

    • 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 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, ...

    • 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 ...