Browsing School of Computer and Communication Engineering (Articles) by Title

Now showing items 218-237 of 281

    • 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 ...

    • Preliminary development of mini anechoic chamber 

      Hasnain, A.; Imran, M.I.; Rohaiza, Z.S.; Roslan, S.; Takiyuddin, A.A.; Rusnani, A.; Azremi, Abdullah Al Hadi (Institute of Electrical and Electronics Engineering (IEEE), 2007)
      The purpose of mini anechoic chamber is to allow cost effective testing of microwave signal. It is because measurements of the radiation pattern are usually done in an anechoic chamber in order to avoid reflections from ...

    • Preparation and characterization of silica aerogel immobilized with cyanex 301 for extraction of Zn(II) 

      Mst. Noorzahan, Begum, Dr.; Md Fazlul, Bari, Dr.; Salmie Suhana, Che Abdullah; Khairel Rafezi, Ahmad, Dr.; Nasim, Ahmed, Dr. (Trans Tech Publications, 2013)
      A new solid phase extractant silica aerogel immobilized with Cyanex 301 {bis(2,4,4- trimethylpentyl) dithiophosphinic acid} (SAWC) was prepared via a sol- gel method and investigated for the extraction of Zn(II) from aqueous ...

    • Priority-based parameter optimization strategy for reducing the effects of four-wave mixing on WDM system 

      Haider J., Abed; Mohammed Hayder, Al-Mansoori; Norashidah, Md. Din, Prof. Ir. Dr.; Fairuz, Abdullah, Dr.; Hilal Adnan, Fadhil, Dr. (Elsevier, 2014)
      In order to meet the ultra high speed and ultra long-haul transmission distance in wavelength division multiplexing (WDM) systems, the nonlinear impairment affecting the overall spectral efficiency and system performance ...

    • Priority-based parameter optimization strategy for reducing the effects of four-wave mixing on WDM system 

      Haider J., Abed; Mohammed Hayder, Al-Mansoori; Norashidah, Md. Din, Ir. Dr.; Fairuz, Abdullah, Dr.; Hilal Adnan, Fadhil, Dr. (Elsevier, 2014-01)
      In order to meet the ultra high speed and ultra long-haul transmission distance in wavelength division multiplexing (WDM) systems, the nonlinear impairment affecting the overall spectral efficiency and system performance ...

    • Proficient feature extraction strategy for performance enhancement of NN based early breast tumor detection 

      Khondker Jahid, Reza; Sabira, Khatun, Prof. Dr.; Mohd. Faizal, Jamlos, Dr.; Ikram, E-Khuda; Zahereel Ishwar, Abdul Khalib, Dr. (Engg Journals Publications, 2013)
      Ultra Wideband is one of the promising microwave imaging techniques for breast tumor prognosis. The basic principle of tumor detection depends on the dielectric properties discrepancies between healthy and tumorous tissue. ...

    • Propose approach for UDP random and sequential scanning detection based on the connection failure messages 

      Mohammed F.R., Anbar; Ramadass, Sureswaran, Prof.; Manickam, Selvakumar; Alhamza, Munther; Esraa, Alomari (Praise Worthy Prize S.r.l., 2013-11)
      Network scanning usually lunched by attackers for exploring and gathering information about the target network, this information may includes the network topology and services running on the network, based on the gathered ...

    • Pulse sign separation technique for the received bits in wireless ultra-wideband combination approach 

      Rashid, A. Fayadh; F., Malek; Hilal A., Fadhil (Hindawi Limited, 2014)
      When receiving high data rate in ultra-wideband (UWB) technology, many users have experienced multiple-user interference and intersymbol interference in the multipath reception technique. Structures have been proposed for ...

    • 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 ...

    • Recent four-wave mixing suppression methods 

      Abeda, H.J.; Din, N. M.; Al-Mansoori, M.H.; Fadhil, H.A.; Abdullah, F. (Elsevier Ltd., 2012-09)
      This paper reviews various techniques that have been proposed by many researchers to reduce the effect of four-wave mixing (FWM). A review was suggested to investigate the recent method of each technique and to compare ...

    • Recent four-wave mixing suppression methods 

      Haider J., Abed; Norashidah, Md. Din, Prof. Ir. Dr.; Mohammed Hayder, Al-Mansoori; Hilal Adnan, Fadhil, Dr.; Fairuz, Abdullah, Dr. (Elsevier GmbH, 2013-08)
      This paper reviews various techniques that have been proposed by many researchers to reduce the effect of four-wave mixing (FWM). A review was suggested to investigate the recent method of each technique and to compare ...

    • Reconfigurable four-parasitic-elements patch antenna for high-gain beam switching application 

      Muzammil, Jusoh; Thennarasan, Sabapathy; Mohd Faizal, Jamlos, Dr.; Muhammad Ramlee, Kamarudin (Institute of Electrical and Electronics Engineers (IEEE), 2014-01)
      A reconfigurable beamforming of a four-para-sitic-elements patch antenna (FPPA) for WiMAX application is presented. The proposed FPPA is successfully capable to steer the radiation pattern in azimuth planes (0°,45°, 135°, ...

    • A reconfigurable ultra wide band (UWB) compact tree-design antenna system 

      Muzammil, Jusoh; Mohd Faizal, Jamlos, Dr.; Muhammad Ramlee, Kamarudin; Mohd Fareq, Abd. Malek, Dr.; Muhamad Asmi, Romli; Zahari, Awang Ahmad; Mahathir, H. Mat (The Electromagnetics Academy, 2012-03)
      A novel compact tree-design antenna (NCTA) with the ability of reconfigurable ultra-wideband (UWB) of 3.1 GHz to 10.6 GHz to five multi-narrowband applications is proposed. This antenna has a novel radiating element design ...

    • A reconfigurable WiMAX antenna for directional and broadside application 

      Muzammil, Jusoh, Dr.; Mohd Faizal, Jamlos, Dr.; Muhammad Ramlee, Kamarudin, Assoc. Prof. Dr.; Sabapathy, Thennarasan (Hindawi Publishing Corporation, 2013)
      A novel reconfigurable compact patch array antenna for directional and broadside application is proposed. The presented antenna has successfully been able to function for directional beam at 320° or 35° and divisive broadside ...

    • Redesign the 4:2 compressor for partial product reduction 

      Hussin, R.; Ali Yeon, Md Shakaff; Idris, N.; Zaliman, Sauli; Ismail, R.C.; Kamarudin, A. (International Association of Science and Technology for Development (IASTED) / ACTA Press, 2007)
      In this paper, we attempt to redesign the 4:2 compressors. Since its inception by Weinberger in 1981[1], this concept of compressor has been used in most digital multiplications and multi operand operation scheme. The ...

    • Reduced complexity optimum detector for block data transmission systems 

      S. P. K., Babu; M. F. M., Salleh; Farid, Ghani (The Institute of Electronics, Information and Communication Engineers, 2009-12-10)
      Block Data Transmission Systems (BDTS) are used in high-speed wireless communication systems with time dispersive channel characteristics. In such systems, blocks of data are separated by zeros to mitigate the effect of ...

    • 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 ...

    • 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 ...

    • Rehabilitation systems for physically disabled patients: A brief review of sensor-based computerised signal-monitoring systems 

      Nizam Uddin, Ahamed; Sundaraj, Kenneth, Assoc. Prof. Dr.; R. Badlishah, Ahmad, Prof. Dr.; Matiur J., Rahman; Md. Asraf, Ali; Md. Anamul, Islam; Palaniappan, Rajkumar (Scientific Publishers of India, 2013)
      This brief review addresses the existing systems and challenges and provides future recommendations on computer- and biosensor-assisted rehabilitation systems for physically disabled patients. We further list the types of ...

    • Relationship between controllable process parameters on bump height in ENIG 

      Zaliman, Sauli, Dr.; Retnasamy, Vithyacharan; Fairul Afzal, Ahmad Fuad; Ehkan, Phaklen, Dr.; Muhamad Hafiz,  Ab Aziz (Trans Tech Publications, 2013)
      This paper reports the factors that affect the bump height in electroless nickel immersion gold (ENIG) and their interrelation between each other. Bump height is a critical issue that needs to be investigated because a ...