Browsing Conference Papers by Author "Syed Alwee Aljunid, Syed Junid, Prof. Dr."

Now showing items 1-20 of 20

    • 125 KHz ubiquitous RFID tag signal detector system 

      Fazrul Faiz, Zakaria; Anuar, Mat Safar, Ir.; Soh, Ping Jack; Syed Alwee Aljunid, Syed Junid, Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2007-11-25)
      This paper presents a development of 125 KHz ubiquitous RFID tag signal detector system that can be used as a door lock for home security. The RFID tag signal detector or also known as RFID reader consists of three elements ...

    • Autonomous green house management system based on fuzzy-wireless sensor network 

      Naseer Sabri, Salim; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Mohd Fareq, Abd Malek, Dr. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      The WSNs are the most significant technology in the information area. It is increasingly popular in the field of environment monitoring and control due to its promising capabilities for distributed continuous data collection ...

    • Effective design of optical code-division multiple access network using random diagonal codes 

      Hilal Adnan, Fadhil, Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; R. Badlishah, Ahmad, Assoc. Prof. Dr. (Institute of Electrical and Electronics Engineers (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 ...

    • Fundamental study and analysis of CAT5e cable for NEXT and ELFEXT 

      Handy, Ali Munir; Nordin, Saad, Assoc. Prof. Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Ahmad Mujahid, Ahmad Zaidi, Dr.; Mohd Zuki, Yusoff, Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2012-06-12)
      Industrial Ethernet (IE) is dedicated to data control and monitoring to operators, equipment, controllers, valves and sensors. Near-End Crosstalk (NEXT) measurements (in dB) is the degree of unwanted signals coupled onto ...

    • Hybrid OCDMA/WDM system using complementary detection technique for FTTH access networks 

      Nasim, Ahmed; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; R. Badlishah, Ahmad, Assoc. Prof. Dr.; Mohd Abdur, Rashid, Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2011-09-25)
      A hybrid optical code division multiple access (OCDMA) over wavelength division multiplexing (WDM) system is proposed for supporting large numbers of subscriber for fiber-to-the-home (FTTH) network. The system combines two ...

    • Improved probability density function using modified-AND detection technique for incoherent SAC-OCDMA systems 

      Hamza Mohammed Ridha, Al-Khafaji; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2012-07-03)
      The rapid progress in video-based Internet applications is increasing the demand for efficient optical communication systems. In this paper, developed detection technique for incoherent spectral-amplitude coding optical ...

    • Intensity noise mitigation in SAC OCDMA systems using a divided spectrum balanced detection scheme 

      Ahmed M., Alhassan; Nasreen, Badruddin, Dr.; Mohamad Naufal, Mohamad Saad, Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2013-09)
      We propose the use of a divided spectrum balanced detection (DSBD) to reduce the intensity noise in spectral amplitude coding (SAC) OCDMA systems. Simulation results show several order of magnitude improvements in bit error ...

    • New class of code with any desired cross correlation for OCDMA systems 

      Mohd Rashidi, Che Beson; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Farid, Ghani, Prof. Dr.; Anuar, Mat Safar, Ir. Dr.; Hilal Adnan, Fadhil, Dr.; Amir Razif Arief, Jamil Abdullah, Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2012-04-07)
      This paper presented the novel of optical code for Optical Code Division Multiple Access (OCDMA) system using Spectral Amplitude Coding. A new class of code, called Modified Non-Zero Cross Correlation Code (MNZCC). MNZCC ...

    • New code for spectral-amplitude coding optical code-division multiple-access systems 

      Thanaa Hussein, Abd.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; R. Badlishah, Ahmad, Prof. Madya Dr.; Mohd Abdur, Rashid, Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2011-06-16)
      In this paper we present a novel code family for SAC-OCDMA system. The new code technique is called Dynamic Cyclic Shift (DCS) code. Which more flexible in selection the code length with variable cross correlation. ...

    • New code structures based on coherent and incoherent sources for spectral amplitude coding-OCDMA systems 

      Hilal Adnan, Fadhil, Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; R. Badlishah, Ahmad, Assoc. Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2009-04-03)
      A new code of optical code division multiple access (OCDMA) based on Spectral Amplitude Coding (SAC) is described and analyzed. The coding technique is called Random Diagonal "RD" code. One of the important properties of ...

    • New code with non-zero cross correlation for spectral amplitude coding optical code-division multiple-access systems 

      Mohd Rashidi, Che Beson; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Farid, Ghani, Prof. Dr.; Anuar, Mat Safar, Ir. Dr.; Hilal Adnan, Fadhil, Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2012-05-21)
      This paper presented the novel of a new class of code with Non-Zero Cross-Correlation for Spectral-Amplitude Coding in Optical Code Division Multiple Access (OCDMA) systems. A new code namely Modified Non-Zero Cross ...

    • New technique for Spectral Amplitude Coding (SAC) OCDMA networks for Reducing Four Wave Mixing (FWM) effects 

      Ibrahim Fadhil, Radhi; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr. (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      A new technique based on LED combined with CW lasers in Spectral Amplitude Coding (SAC) Optical Code Division Multiple Access (OCDMA) networks, which allow reduction of the four-wave mixing (FWM) effect. In this paper, ...

    • One EDFA loop in 16 channels spectrum slicing WDM for FTTH access network 

      Aldouri, Muthana Y.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Anuar, Mat Safar; Hilal Adnan, Fadhil; Ahmed, N. (Institute of Electrical and Electronics Engineers (IEEE), 2010-07-05)
      In this paper the improved versions of modified demultiplexer operating for 16 channel multi users with and without EDFA are proposed for slicing WDM systems. The spectrum-sliced WDM channel operating at high data rate ...

    • Optical Code Division Multiple Access (OCDMA) using Double Weight (DW) Codes for local area network 

      Dayang Khadijah, Hamzah; Syed Alwee Aljunid, Syed Junid, Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2010-05-11)
      This paper describes the performance evaluation of the Optical Code Division Multiple Access (OCDMA) technique using Double Weight (DW) Code. This technique was implemented in local area environment which is applied in ...

    • Optimum transmit power for optical CDMA transmission systems considering nonlinear stimulated brillouin scattering (SBS) effects 

      Fuad, A. Hatim; Feras, N. Hasoon; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Sahbudin, B. H. Shaari (Institute of Electrical and Electronics Engineers (IEEE), 2008-12-01)
      The optimum transmit power for an optical code division multiple access (OCDMA) system based on enhanced double weight (EDW) code is evaluated for various transmission distances considering the nonlinear stimulated Brillouin ...

    • Outage probability of multipath fading channel 

      Naseer Sabri, Salim; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; R. Badlishah, Ahmad, Prof. Dr.; Fareq, Malek, Dr.; Rezuwan, Kamaruddin, Prof. Dr.; Abid, Yahya, Dr.; Muhammed, S. Salim (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      In mobile communication, a principle problem with the propagation environment is the rapid variation in received signal strength as the communicating parties move. Such rapid variation in received signal strength is termed ...

    • 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 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 ...

    • Proposal: Fundamental study of spectral slicing wavelength division multiplexing (WDM) system 

      Nasim, Ahmed; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; R. Badlishah, Ahmad, Prof. Madya Dr.; Muthana, Yassen .K (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 ...

    • Spectral efficiency of unipolar SAC-OCDMA system considering noise effects 

      Hamza Mohammed Ridha, Al-Khafaji; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2011-09-25)
      In this paper, we evaluate the spectral efficiency of unipolar spectral-amplitude coding optical code-division multiple access (SAC-OCDMA) system operating with incoherent sources in the present of intensity, shot, and ...