Browsing Researchers by Subject "Wireless communication systems"

Now showing items 1-20 of 22

    • Development of new OCDMA code 

      Nor Ilyana Osman (Universiti Malaysia PerlisSchool of Computer and Communication Engineering, 2007-05)
      Nowadays, communication is very important at any place, time and situation. The transmission of signal can be in wireless or cable (especially fiber optic that has more advantages than others cable for a long distance). ...

    • Development of new OCDMA detection scheme 

      Norizan Abdul Razak (Universiti Malaysia PerlisSchool of Computer and Communication Engineering, 2007-03)
      A new direct detection technique is proposed for optical code multiple accesses using Double Weight code. In optical system the detection process affect design transmitter and receiver. The Multiple Access Interference ...

    • Development of Optical Code Division Multiple Access (OCDMA) for Local Area Network (LAN) 

      Yus Irma Md. Yusof (Universiti Malaysia PerlisSchool of Computer and Communication Engineering, 2008-04)
      Nowadays, communication is very important at any place, time and situation. The transmission of the signal can be in wireless or cable. There are three type of division multiple accesses that use in communication system ...

    • Development of point-to-point OCDMA system for metropolitan area network 

      Liyana Dhamirah M. Zamani (Universiti Malaysia PerlisSchool of Computer and Communication Engineering, 2007-05)
      Future telecommunication systems and networks are expected to provide a variety of integrated broadband services to the customers. There has been a tremendous interest in applying Code Division Multiple Access (CDMA) ...

    • The effects of MAC protocols on ad hoc on-demand distance vector (AODV) routing protocol 

      R. Badlishah, Ahmad; F., Hashim; Sabira, Khatun; B. M., Ali (Kolej Universiti Kejuruteraan Utara Malaysia, 2005-05-18)
      Ad hoc networks play an important role in mobile radio networks due to its flexibility and low operation cost. Several of key research issues of ad hoc network are on the routing and MAC algorithms. But, only a few of ...

    • 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 ...

    • 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 ...

    • 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 ...

    • 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 ...

    • Miniaturization and broadbanding techniques for folded meander line microstrip antennas 

      Mohammad Ezanuddin, Abdul Aziz; Soh, Ping Jack; Liam, Ooi Soo; Majmi, M. M (Institute of Electrical and Electronics Engineering (IEEE), 2009)
      In this paper a Folded Meander Line Antenna (FMLA) had been designed to operate in WLAN b/g band. Fabricated on a FR-4 board for single layer prototype and RO3010 for two layers prototype. The design of this antenna is ...

    • Multi-rate transmissions on spectral amplitude coding optical code division multiple access system using random diagonal codes 

      Hilal Adnan, Fadhil; Syed Alwee Aljunid, Syed Junid; R.Badlishah, Ahmad (Institute of Physics, Wroclaw University of Technology, 2009)
      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 (OCDMA) networks, using fiber Bragg-grating (FBG). FBG consists of a ...

    • 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. ...

    • 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 ...

    • 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 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 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., 2009-06)
      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 ...

    • 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 ...

    • Power-limited spectral amplitude coding OCDMA system using random diagonal code with and without optical amplifiers 

      Hilal Adnan, Fadhil; Syed Alwee Aljunid, Syed Junid; R. Badlishah, Ahmad (Institute of Electrical and Electronics Engineering (IEEE), 2008)
      A new code structure for spectral amplitude coding in optical code division multiple access (OCDMA) systems called Random Diagonal (RD) code is proposed. RD code is constructed using code level and data level. One of the ...

    • Spectral amplitude coding OCDMA using and subtraction technique 

      Hasoon, Feras N.; Syed Alwee Aljunid, Syed Junid; Samad, M.D.A.; Mohamad Khazani, Abdullah; Sahbudin, Shaari (Optical Society of America, 2008-03)
      An optical decoding technique is proposed for a spectral-amplitude-coding- optical code division multiple access, namely, the AND subtraction technique. The theory is being elaborated and experimental results have been ...

    • 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 ...