• Investigation on Heavy Precipitation Effects over FSO Link 

  M. F., Talib; Abdul Rahman, Kram; Anuar, Mat Safar; Mohd Rashidi, Che Beson; Syed Alwee Aljunid, Syed Junid (EDP Sciences, 2017)

  This paper has examined the performance of free space optic system and scattering effects over the laser propagation. Analysis result based on Optisystem simulation software and rain data collected from Malaysia Meteorological ...

• New catenated OFDM modulation scheme in zero cross correlation OCDMA at various number of user and effective power 

  ‪Norizan Mohamed, Nawawi‬; Anuar, Mat Safar; Junita, Mohd Nordin; Mohd Rashidi, Che Beson (EDP Sciences, 2017)

  This paper proposes an integration of optical Code Division Multiple Access (OCDMA) with new catenated Orthogonal Frequency Division Multiplexing (OFDM) modulation scheme. This effective combination based on Zero Cross ...

• 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 ...

• Compressing Turbulence Effect in FSO using New Modulation Technique 

  Norizan, Mohamed Nawawi; Anuar, Mat Safar; Abdul Rahman, Kram; Mohd Rashidi, Che Beson; Junita, Mohd Nordin (EDP Sciences, 2017)

  Diffusers transmitter modulation to reduce the effect of atmospheric turbulence in free space optical communication system is described in this paper. This technique uses dual transmitters and dual receivers which are using ...

• Effective design for Optical CDMA based on radio over fiber (RoF) technique 

  Mohd Rashidi, Che Beson; Syed Alwee Aljunid, Syed Junid; Anuar, Mat Safar; Yaakob, S. (EDP Sciences, 2017)

  In this paper, the performance of OCDMA coding systems utilizing the radio over fiber (RoF) technique is presented. It has been done by means of conventional OptiSystem simulation tools, where the propagation of radio ...

• Hybrid subcarrier multiplexing Flexible Cross Correlation (FCC) Ocoma fiber-wireless access network 

  Junita, Mohd. Nordin Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Anuar, Mat Safar, Ir. Dr.; Amir Razif Arief, Jamil Abdullah, Dr.; Mohd Rashidi, Che Beson; Abdullah Omar Ali, Al-Dhaibani; Abdul Rahman, Kram; Rosemizi, Abdul Rahim, Dr. (Universiti Malaysia Perlis (UniMAP)School of Computer and Comunication Engineering, 2014-05)

  FCC-OCDMA code with Subcarrier Multiplexing (SCM) is developed and deployed on Fiber-Wireless access network. Hybrid Fiber Wireless FCC-OCOMA network with future broadband allows highmobility, high-speed internet access, ...

• APD gain effect on SAC-OCDMA system using modified-and detection technique 

  Hamza Mohammed Ridha, Al-Khafaji; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Amphawan, Angela, Dr.; Hilal Adnan, Fadhil, Dr.; Anuar, Mat Safar, Ir. Dr. (Asian Research Publication Network, 2013-07)

  This paper investigates the avalanche photodiode (APD) gain effect on spectral-amplitude coding optical code-division multiple-access (SAC-OCDMA) system using a modified-AND subtraction detection in comparison to the ...

• Improving performance in free space optical communication (FSOC) channel through the dual diffuser modulation (DDM) due to atmospheric turbulence 

  Abdul Rahman, Kram; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Anuar, Mat Safar, Ir. Dr.; Hilal Adnan, Fadhil, Dr. (Asian Research Publication Network, 2014-02)

  This paper focus on reduction of atmospheric turbulence effect on free space optical communication using robust modulation that is dual diffuser modulation (DDM) technique. This technique uses two transmitter and differential ...

• 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. ...

• 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 ...

• 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 ...

• Increasing capacity and suppress the crosstalk by using hybrid optical OFDM/ WDM system 

  Abdullah Omar Ali, Al-Dhaibani; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; Anuar, Mat Safar, Ir. Dr. (Trans Tech Publications, 2014)

  Hybrid optical OFDM/WDM system is proposed to provide longer reach and larger capacity comparing with existing PON systems in order to meet the ever increasing bandwidth demand and data rate of next generation optical ...

• Channel spacing effect on SAC-OCDMA system based modified-AND subtraction detection scheme 

  Norazimah, Mat Zain; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hamza Mohammed Ridha, Al-Khafaji; Hilal Adnan, Fadhil, Dr.; Anuar, Mat Safar, Ir. Dr. (Trans Tech Publications, 2014)

  This paper focuses on the performance of different channel spacing with AND as well as modified-AND subtraction detection techniques emphasizing the spectral-amplitude coding optical code-division multiple-access (SAC-OCDMA) ...

• Enhance the performance of free space optical (FSO) communication due to atmospheric turbulence via the dual diffuser modulation (DDM) 

  Abdul Rahman, Kram; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Anuar, Mat Safar, Ir. Dr.; Hilal Adnan, Fadhil, Dr. (Trans Tech Publications, 2013-12)

  This paper focus on mitigating the atmospheric turbulence effect in free space optical communication using dual diffuser modulation (DDM) technique. Phase screen diffuser located on transmitter create 'new' beam wave to ...

• Reducing BER of spectral-amplitude coding optical code-division multiple-access systems by single photodiode 

  Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hamza Mohammed Ridha, Al-Khafaji; Amphawan, Angela, Dr.; Hilal Adnan, Fadhil, Dr.; Anuar, Mat Safar, Ir. Dr. (European Optical Society, 2013)

  In this paper, we present a single photodiode detection (SPD) technique for spectral-amplitude coding optical code-division multiple-access (SAC-OCDMA) systems. The proposed technique eliminates both phase-induced intensity ...

• Alleviation noise effect using flexible cross correlation code in 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. (Engineering and Technology Publishing, 2013)

  A new code for Spectral Amplitude Coding - Optical Code Division Multiple Access (SAC-OCDMA) is proposed and is called Flexible Cross-correlation (FCC) code. The FCC code possesses various advantages; including easy code ...

• Cardinality enhancement of spectral/spatial modified double weight code optical code division multi-Access system by PIIN suppression 

  Amir Razif Arief, Jamil Abdullah, Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Anuar, Mat Safar, Ir. Dr.; Junita, Mohd Nordin; R. Badlishah, Ahmad, Prof. Dr. (Elsevier GmbH, 2013-10)

  A new two-dimensional (2-D) optical code division multiple access (OCDMA) scheme to increase the achievable system capacity is proposed. The code exhibits good cross-correlation property time and wavelength shift. Performances ...

• Effective design for fiber-to-the-home access network using flexible cross correlation (FCC) code 

  Mohd Rashidi, Che Beson; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Farid, Ghani, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; Anuar, Mat Safar, Ir. Dr. (Trans Tech Publications, 2014-01)

  This paper presented a new class of codes for Fiber-To-The-Home (FTTH) network design based on Spectral Amplitude Coding (SAC) - Optical Code Division Multiple Access (OCDMA) coding approaches. The FTTH SAC-OCDMA network ...

• Reducing BER of spectral-amplitude coding optical code-division multiple-access systems by single photodiode detection technique 

  Hamza Mohammed Ridha, Al-Khafaji; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Amphawan, Angela, Dr.; Hilal Adnan, Fadhil, Dr.; Anuar, Mat Safar, Ir. Dr. (European Optical Society, 2013-03)

  In this paper, we present a single photodiode detection (SPD) technique for spectral-amplitude coding optical code-division multiple-access (SAC-OCDMA) systems. The proposed technique eliminates both phase-induced intensity ...

• 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 ...

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