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

Now showing items 64-83 of 123

    • New approach for evaluation of the performance of spectral amplitude coding-optical code division multiple access system on high-speed data rate 

      Thanaa Hussein, Abd.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; R. Badlishah, Ahmad, Prof. Dr.; Mohd Abdur, Rashid, Dr. (The Institution of Engineering and Technology, 2012-08-14)
      In this study, the authors proposed a new approach to evaluate the system performance of spectral amplitude codingoptical code division multiple access (SAC-OCDMA) systems. The system performance is evaluated based on a ...

    • New approach of Double Weight Code Family Detection using reduced set of Fiber Bragg Gratings 

      Mohammed, A; Babekir, E.I; Elfadel, N.; Saad, N. M.; Anuar, Mat Safar; Syed Alwee Aljunid, Syed Junid; Mohamad Khazani, Abdullah (Institute of Electrical and Electronics Engineering (IEEE), 2007)
      To increase the number of users in the double weight (DW) code family, a mapping technique is applied. This mapping technique increases the number of users but at a cost of unfixed cross-correlation property. The complementary ...

    • 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 ...

    • A new code design for spectral amplitude coding optical CDMA systems using fiber bragg-grating 

      Thanaa Hussein, Abd.; Syed Alwee Aljunid, Syed Junid, Assoc. Prof. Dr.; Hilal Adnan, Fadhil, Dr. (Spinger, 2013-01)
      In this paper, we present the performance of a new code called Dynamic Cyclic Shift (DCS) code for Spectral Amplitude Coding (SAC) optical Code Division Multiple Access (CDMA) networks, using Fiber Bragg-Grating (FBG). FBG ...

    • 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 structure for spectral amplitude coding in OCDMA system 

      Hasoon, Feras N.; Syed Alwee Aljunid, Syed Junid; Mohamad Khazani, Abdullah; Sahbudin, Shaari (The Institute of Electronics, Information and Communication Engineers, 2007)
      A new code structure for spectral amplitude coding optical code division multiple access system, based on Double Weight (DW) code families is proposed. The DW code has a, fixed weight of two. Modified Double Weight (MDW) ...

    • New code structure for spectral amplitude coding OCDMA system 

      Hilal Adnan, Fadhil; Syed Alwee Aljunid, Syed Junid; R. Badlishah, Ahmad (The institute of Electronics, Information and Communication Engineers (IEICE), 2008-10)
      A new code structure for spectral amplitude coding in optical code division multiple access (OCDMA) systems called Smart Direct Detection (SDD) code is proposed. SDD code is constructed using code segment and data segment. ...

    • 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 design of Flexible Cross Correlation (FCC) code for SAC-OCDMA system 

      Mohd Rashidi, Che Beson; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Farid, Ghani, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; Anuar, Mat Safar, Ir. Dr. (Elsevier B.V., 2013)
      In this paper, we present, several aspects of unipolar optical code-division multiple access (OCDMA) codes, focusing on the flexible inphase cross-correlation code algorithm and its potential for future optical networks. ...

    • New design of spectral amplitude coding in OCDMA with zero cross-correlation 

      Anuar, Mat Safar; Syed Alwee Aljunid, Syed Junid; N. M., Saad; S. M., Hamzah (Elsevier B.V. (Imprint: NORTH-HOLLAND), 2009-07)
      A zero cross-correlation (ZCC) code is proposed to reduce the impact of system impairment and multiple access interference (MAI) in spectral amplitude coding optical code division multiple access (SAC-OCDMA) system. ...

    • 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, ...

    • A new two-code keying scheme for SAC-OCDMA systems enabling bipolar encoding 

      Hamza M. R., Al-Khafaji, Dr.; Razali, Ngah, Assoc. Prof. Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Tharek, Abd. Rahman, Prof. Dr. (Taylor & Francis, 2014-03)
      In this paper, we propose a new two-code keying scheme for enabling bipolar encoding in a high-rate spectral-amplitude coding optical code-division multiple-access (SAC-OCDMA) system. The mathematical formulations are ...

    • 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 ...

    • Optical code sequences for spectral-amplitude-coding optical CDMA systems 

      Syed Alwee Aljunid, Syed Junid; M., Ismail; A. R., Ramli; Borhanuddin, M. Ali; Mohamad Khazani, Abdullah (Universiti Malaysia Perlis (UniMAP)Pejabat Timbalan Naib Canselor (Penyelidikan dan Inovasi), 2007-01)
      OPTICAL SPECTRUM code-division multiple-access (OSCDMA) is a multiplexing technique adapted from successful implementation in wireless networks. In OSCDMA each user is assigned with a code sequence code that serves ...

    • 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 ...

    • Optical Generation of 80 GHz Downstream Data in Radio over Fiber System Based on Stimulated Brillouin Scattering 

      M. M. H., Husaini; Mohd Rashidi, Che Beson; Anuar, Mat Safar; Rosdisham, Endut; Syed Alwee Aljunid, Syed Junid (EDP Sciences, 2017)
      In this work, we proposed Stimulated Brillouin Scattering (SBS) in an optical generation of millimeter waves (mm-waves) for radio over fiber (RoF) system with the transmission of 2.5 Gbps data rate. SBS method is achieved ...

    • Optical Spectrum CDMA: a new code construction for Double Weight Code Family 

      Mohammed, A; Saad, N.M; Syed Alwee Aljunid, Syed Junid; Anuar, Mat Safar; Mohamad Khazani, Abdullah (Institute of Electrical and Electronics Engineering (IEEE), 2006)
      This paper handles the Double Weight (DW) Code family, one of the proposed codes used in Spectral-Amplitude-Coding Optical Code Division Multiple Access (OCDMA). The DW code family is constructed using a matrix technique ...

    • Optical spectrum CDMA: A new code construction with zero cross correlation for double weight code family 

      Babekir, E.I.; Saad, N.M.; Elfadel, N.; Mohammed, A.; Aziz, A.A.; Anuar, Mat Safar; Syed Alwee Aljunid, Syed Junid; Mohamad Khazani, Abdullah (Institute of Electrical and Electronics Engineering (IEEE), 2007)
      This paper concentrates on Double Weight code family as a proposed code for the optical spectrum code division multiple access (OSCDMA) which has one cross correlation value. By eliminating the intersection columns of this ...

    • Optimization FSO Performance Under Strong Turbulence Effect By Enhanced New Carrier Data Transmission Technique 

      Ummul K.R.; Anuar, Mat Safar; Rahman, A.K.; Mohd Rashidi, Che Beson; Syed Alwee Aljunid, Syed Junid (EDP Sciences, 2017)
      This paper focus on mitigating the atmospheric turbulence effect in free space optical communication using a dual diffuser modulation (DDM) technique. The most deteriorate the FSOC is scintillation where it affected the ...