School of Computer and Communication Engineering (Articles): Recent submissions

Now showing items 161-180 of 281

    • High Gain and High Directive of Antenna Arrays Utilizing Dielectric Layer on Bismuth Titanate Ceramics 

      Fwen Hoon, Wee; Mohd Fareq, Abd Malek; Farid Ghani; S. Sreekantan; A. U. Al-Amani (Hindawi Publishing Corporation, 2012-06-25)
      A high gain and high directive microstrip patch array antenna formed from dielectric layer stacked on bismuth titanate (BiT) ceramics have been investigated, fabricated, and measured. The antennas are designed and constructed ...

    • 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 ...

    • The use of a human body model to determine the variation of path losses in the human body channel in wireless capsule endoscopy 

      Basar, Md R.; Mohd Fareq, Abdul Malek, Dr.; Khairudi M., Juni; Mustafa Iskandar M., Saleh; Mohd Shaharom, Idris; Latifah, Mohamed; Norshafinash, Saudin; Nur Adyani, Mohd Affendi; Abdussalam Salhin Mohamed, Ali (Progress in Electromagnetics Research (PIER), 2013)
      Presently, wireless capsule endoscopy (WCE) is the sole technology for inspecting the human gastrointestinal (GI) tract for diseases painlessly and in a non-invasive way. For the further development of WCE, the main concern ...

    • Improved BER based on intensity noise alleviation using developed detection technique for incoherent SAC-OCDMA systems 

      Hamza Mohammed Ridha, Al-Khafaji; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr. (Taylor and Francis Group, LLC., 2012-06)
      The major drawback of incoherent spectral-amplitude coding optical code-division multiple-access (SAC-OCDMA) systems is their inherent intensity noise originating due to the incoherency of the broadband light sources. In ...

    • Development of a new approach for high-quality quadrupling frequency optical millimeter-wave signal generation without optical filter 

      Nael A., Al-Shareefi; Syed I., S. Hassan; Mohd Fareq, Abd Malek, Dr.; Razali, Ngah, Assoc. Prof. Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Rashid Ali, Fayadh; Jaafar Adhab, ALdhaibani; Hasliza, A. Rahim (PIER, 2013)
      In this paper, we propose a new approach to generate quadrupling-frequency optical millimeter-wave (mm-wave) signal with carrier suppression by using two parallel Mach-Zehnder modulators (MZMs) in Radio-over-fiber (RoF) ...

    • SCPS solution for heterogeneous networks for isolated areas: a novel design approach 

      Satea Hikmat, Alnajjar; Mohd Fareq, Abd. Malek, Dr. (ICIC International, 2012)
      This research presents an innovative system that has capability to prove the technical feasibility and advantages of a joint radio frequency (RF) and free space optic (FSO) system with a synchronized self-trace directional ...

    • Frequency and pattern reconfigurable dipole-Yagi antenna 

      Ezla Najwa, Ahyat; Muhammad Ramlee, Kamarudin, Assoc. Prof. Dr.; Tharek, Abd. Rahman, Prof. Dr.; Mohd Faizal, Jamlos, Dr.; Mohamad Rijal, Hamid, Dr.; Mohd. Haizal, Jamaluddin, Dr.; Nur Hidayah, Ramli (Wiley Periodicals, Inc., 2013-02)
      A novel dipole-Yagi antenna is presented with pattern and frequency reconfigurable capability. The novel structure is based from Yagi-Uda antenna, consist of dipole as a main radiator and four parasitic metal strips. The ...

    • PIN versus Avalanche photodiode gain optimization in zero cross correlation optical code division multiple access system 

      Anuar, Mat Safar, Ir. Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Amir Razif Arief, Jamil Abdullah; Junita, Mohd Nordin; Mohamad Naufal, Mohamad Saad, Assoc. Prof. Dr. (Elsevier GmbH, 2013-02)
      In this paper, we show details of zero cross correlation (ZCC) code development and investigate performance by measuring bit-error-rates compared to other optical code division multiple access (OCDMA) codes using Avalanche ...

    • 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 ...

    • Branch line coupler using hybrid T-model structure 

      Mohd Tarmizi, Ali, Dr.; Shahrul Kamal, Abdul Rahim, Assoc. Prof. Ir. Dr.; Muhammad Zairil, Muhammad Nor; Mohd Faizal, Jamlos, Dr. (Wiley Periodicals, Inc., 2012-01)
      A reduced size branch line coupler (BLC), which does not use bonding wires, lumped elements, or via holes, is reported in this article. The technique presented uses T-model approach, which is a combination of low-impedance ...

    • Gait disorder rehabilitation using vision and non-vision based sensors: A systematic review 

      Asraf, Ali; Sundaraj, Kenneth, Prof. Madya Dr.; R. Badlishah, Ahmad, Prof. Dr.; Nizam, Ahamed; Anamul, Islam (Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina, 2012-08)
      Even though the amount of rehabilitation guidelines has never been greater, uncertainty continues to arise regarding the efficiency and effectiveness of the rehabilitation of gait disorders. This question has been hindered ...

    • Modelling and simulation of a 1.6 Tb/s optical system based on multi-diagonal code and optical code-division multiple-access 

      Thanaa Hussein, Abd.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; Junita, Mohd Nordin; Mohamad Naufal, Mohamad Saad, Prof. Madya Dr. (Institute of Physical Optics, 2012)
      n this paper we have modelled and simulated a 1.6 Tb/s (100×16 Gb/s) optical system based on spectral amplitude coding for the optical code-division multiple- access (SAC-OCDMA) scheme. In order to reduce the effect of ...

    • 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 ...

    • Electromyographic responses during elbow movement at two angles with voluntary contraction: Influences of muscle activity on upper arm Biceps Brachii 

      Nizam Uddin, Ahamed; Sundaraj, Kenneth, Prof. Dr.; R. Badlishah, Ahmad, Prof. Dr.; Matiur, Rahman; Asraf, Ali; Anamul, Islam (Maxwell Scientific Organization, 2012-11-15)
      Analysis of Electromyography (EMG) signals generated by individuals is part of human musculoskeletal system research and signals are always influenced by the electrode placement in the muscle. This characteristic is also ...

    • 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 ...

    • Design and simulation a new code with zero cross-correlation for SAC-OCDMA networks 

      Thanaa Hussein, Abd; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; R. Badlishah, Ahmad, Prof. Dr. (INSInet Publications, 2012-03)
      Design and simulation of new code family for the Spectral Amplitude Coding-Optical Code Division Multiple Access (SAC-OCDMA) networks is present. The new code family called Multi Diagonal (MD) code. The MD code family ...

    • The analytical design of a folded waveguide traveling wave tube and small signal gain analysis using madey's theorem 

      Mohd Fareq, Abd Malek, Dr. (Progress In Electromagnetics Research (PIER), 2009)
      We are developing an analytical model for the design of the folded waveguide traveling wave tube (FWTWT). This analytical model provides the physical view for rapid design optimization of the FWTWT. The design and analysis ...

    • A novel compact tree-design antenna (NCTA) with high gain enhancement for UWB application 

      M. T., Jusoh; Mohd Faizal, Jamlos, Dr.; Muhammad Ramlee, Kamarudin; Mohd Fareq, Abd. Malek; Mahathir, H. Mat (Taylor & Francis Group, 2011)
      In this paper, a novel compact tree-design antenna (NCTA) for ultra-wideband (UWB) application with high gain and impedance matching improvement is analyzed and presented. The novel antenna is composed of a single centered ...

    • Low power reconfigurable sub-band filter bank ASIC for MP3 decoder 

      Gangamamba, B. P.; Muralidhar, Pendyala V.; Murthy, Nukala Satyanarayana (Inderscience Publishers, 2009)
      There is an ever demanding need to develop low power audio devices using MP3 technology. From the profiled results of MP3 algorithm on ARM processors, it has been observed that the synthesis filter bank in the audio decoder ...

    • Ultrawideband quadrature power divider employing double wireless via 

      Siti Zuraidah, Ibrahim; Marek Edward, Bialkowski; Abbosh, A. (Wiley Periodicals, Inc., 2012-02)
      The article reports the design of an ultrawideband quadrature power divider in uniplanar microstrip technology. The proposed device uses the conventional Wilkinson power divider with one of its output arms equipped with a ...