Now showing items 261-280 of 281

    • 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 ...
    • Improving bit error rate of OCDMA systems using and subtraction technique 

      Syed Alwee Aljunid, Syed Junid; Shariffah Zarihan, Syed Zaharim Helmi; Anuar, Mat Safar; Junita, Mohd Nordin; Norsuhaida, Ahmad; Samad, M.D.A.; Mohamad Khazani, Abdullah (Institute of Electrical and Electronics Engineering (IEEE), 2006)
      A new detection scheme, namely AND subtraction technique is proposed and presented in this paper. The theory is being elaborated and experimental results have been done by comparing Double-Weight (DW) code against the ...
    • Spectral amplitude coding OCDMA using AND subtraction technique 

      Syed Alwee Aljunid, Syed Junid; M., Othman; N.S.M., Shah; Samad, M.D.A.; Sahabudin, R.K.Z.; Mohamad Khazani, Abdullah (Institute of Electrical and Electronics Engineering (IEEE), 2007)
      A new detection scheme, namely AND subtraction technique is proposed and presented in this paper. The theory is being elaborated and the calculated and simulation results have been done by comparing AND subtraction technique ...
    • Spectral amplitude coding OCDMA using and subtraction technique 

      Syed Alwee Aljunid, Syed Junid; Hasoon, Feras N.; Samad, M.D.A.; Mohamad Khazani, Abdullah; Othman, M.; Sahbudin, Shaari (Institute of Electrical and Electronics Engineering (IEEE), 2007)
      A new detection scheme, namely AND subtraction technique is proposed and presented in this paper. The theory is being elaborated and experimental results have been done by comparing Double-Weight (DW) code against the ...
    • 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 ...
    • Evaluation of transformer magnetizing core loss 

      Ahmed, M.A.H.; Soib, Taib; Ismail, Daut; Uthman, S. (Asian Network for Scientific Information, 2006)
      Loss in transformer core is the electrical power lost in terms of heat within the core of transformer, when core is subjected to AC magnetizing force. It is composed of several types of losses such as Hysterics loss, eddy ...
    • Web-based wireless data acquisition system using 32bit single board computer 

      R. Badlishah, Ahmad; Wan Muhamad Azmi, Mamat; Mohamad Rizon, Mohamed Juhari; Shuhaizar, Daud; Arshad, N.W. (Institute of Electrical and Electronics Engineering (IEEE), 2008)
      The design and architecture of a web-based wireless data acquisition system are presented. This system provides a web interface for remote monitoring of sensors deployed which connected using wireless technology. The design ...
    • Implementing a large data bus VLIW microprocessor 

      Lee, Weng Fook; Ali Yeon, Md Shakaff (Science Publications., 2008)
      Microprocessors have grown tremendously in its computing and data crunching capability since the early days of the invention of a microprocessor. Today, most microprocessors in the market are at 32 bits, while the latest ...
    • FPGA based control IC for multilevel inverter 

      Muhammad Imran, Ahmad; Zulkifli, Husin; R. Badlishah, Ahmad; Hasliza, A. Rahim; Mohamad Suhaizal, Abu Hassan; Mohd Nazrin, Md Isa (Institute of Eelectrical and Electronics Engineering (IEEE), 2008-05-13)
      Multilevel inverter is used in applications that need high voltage and high current. The topologies of multilevel inverter have several advantages such as lower THD, lower EMI generation, better output waveform and higher ...
    • 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 ...
    • A MIMO LMS adaptive equalization approach in simulated radar emission 

      Junita, Mohd Nordin; Anuar, Mat Safar; Azremi, Abdullah Al Hadi; Norshaida, Ahmad; Shariffah Zarihan, Syed Zaharim Helmi; Bukhairi, M.N (Institute of Electrical and Electronics Engineering (IEEE), 2006)
      MIMO technology has attracted a lot of attention in the area of wireless communications such as radar applications, in term of increasing the spectral efficiency. This research paper will present the model of Simulated ...
    • X-band trisection substrate-integrated waveguide quasi-elliptic filter 

      Alyani, Ismail; Mohammad Shahrazel, Razalli; Mohamed Adzir, Mahdi; Abdullah, R.S.A.R; Noordin, N.K; Rasid, M.F.A (EMW Publishing, 2008)
      A narrowband trisection substrate-integrated waveguide elliptic filter with coplanar waveguide (CPW) input and output ports is proposed and demonstrated for X-band applications. The filter is formed by incorporating ...
    • 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 ...
    • Embedded smart camera performance analysis 

      Kahar, N.F; R.Badlishah, Ahmad; Zulkifli, Hussin; Ahmad Nasir, Che Rosli (Institute of Electrical and Electronics Engineering (IEEE), 2009)
      Increasingly powerful integrated circuits are making an entire range of new applications possible. Recent technological advances are enabling a new generation of smart cameras that represent a quantum leap in sophistication. ...
    • Effects of the Random Diagonal code link parameters on the performance of an OCDMA scheme for high-speed access networks 

      Hilal Adnan, Fadhil; Syed Alwee Aljunid, Syed Junid; R.Badlishah, Ahmad (Elsevier Inc., 2009-06)
      In this paper, we study the performance of optical code-division multiple access (OCDMA) systems using Random Diagonal (RD) code under various link parameters. This code which can be constructed using address segment and ...
    • A flexible and reliable architecture for mobile agent security 

      Ghossoon, Mohammed Waleed Al-Saadoon (Science Publications, 2009)
      Problem statement: Wireless application protocol is a protocol that makes it possible to surf the Internet from a cellular phone or other handheld wireless. Many of us that surf the Internet from home with a 56 kbps modem ...
    • Optical domain service differentiation using spectral-amplitude-coding 

      S.B., Ahmad Anas; Mohamad Khazani, Abdullah; M., Mokhtar; Syed Alwee Aljunid, Syed Junid; S.D., Walker (Elsevier Inc., 2009)
      We have implemented a new service differentiation technique in the optical domain using a spectral-amplitude-coding (SAC) variant of optical code division multiple access (OCDMA). The newly developed code, named KS ...
    • Novel compact "via-less" ultra-wide band filter utilizing capacitive microstrip patch 

      Mohammad Shahrazel, Razalli; Alyani, Ismail; Mohamed Adzir, Mahdi; Mohd Nizar, Hamidon (EMW Publishing, 2009)
      This paper presents a novel compact "via-less" UWB filter derived from a quarter-wavelength short-circuited stubs model. In this compact "via-less" UWB filter, there is no connecting vias as short circuit elements. Unlike ...
    • Improving BER using RD Code for spectral amplitude coding optical CDMA network 

      Fadhil, H.A; Syed Alwee Aljunid, Syed Junid; R. Badlishah, Ahmad (Institute of Electrical and Electronics Engineering (IEEE), 2009)
      A new code for spectral-amplitude coding optical code-division multiple-access system is proposed called random diagonal (RD) code. This code is constructed using code segment and data segment. One of the important properties ...
    • "Via-Less” UWB Filter using Patched Microstrip Stubs 

      Mohammad Shahrazel, Razalli; Alyani, Ismail; Mohamed Adzir, Mahdi; Mohd Nizar, Hamidon (VSP (imprint of Brill), 2009)
      This paper presents an Ultra-Wide Band (UWB) microstrip filter which is initially modeled from a quarter-wavelength short-circuited stubs, without the use of any vias. All vias that provide short circuit stubs are replaced ...