Now showing items 1-20 of 23

    • Ant colony system with stagnation avoidance for the scheduling of real-time tasks 

      Yacine, Laalaoui; Habiba, Drias; Adel, Bouridah; R. Badlishah, Ahmad, Prof. Madya Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2009-03-30)
      This paper presents a meta-heuristic approach, namely, the Ant Colony System for non-preemptive scheduling of real-time tasks under timing and precedence constraints on a single processor architecture. The present paper ...
    • A chaotic neural network based encryption algorithm for MPEG-2 encoded video signal 

      A. Tariq, A. Fadil; Shahrul Nizam, Yaakob; R. Badlishah, Ahmad, Prof. Madya Dr.; Abid, Yahya, Dr. (Universiti Malaysia Perlis (UniMAP)Pusat Pengajian Kejuruteraan Mekatronik, 2012-02-27)
      In this paper, a cipher system based on Chaotic Neural Network (CNN) is used to encrypt and construct a stream cipher of compressed MPEG-2 video signal. The symmetric CNN cipher algorithm transforms the plaintext (compressed ...
    • Comparison of colour thresholding method using RGB and HSI information for Ziehl-Neelsen sputum slide images 

      Rafikha Aliana, A. Raof; Mohd Yusoff, Mashor, Prof. Dr.; R. Badlishah, Ahmad, Prof. Madya Dr.; Noor, S. S. M.; Kosman, M. (Institute of Electrical and Electronics Engineers (IEEE), 2010-05-10)
      Image segmentation technique for Ziehl-Neelsen sputum slide image is an important factor in extracting tuberculosis (TB) bacilli from the background and sputum cells. Colour threshold using Red, Green, Blue (RGB) information ...
    • Design and implementation of fail -recover operation for embedded system based FPGA 

      M. Sabri, Salim; R. Badlishah, Ahmad, Prof. Madya Dr.; M. F., Melka (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      High speed digital systems are often applied in critical tasks or in environments where a failure can result in unacceptable malfunctions or in dangerous situations for people. This proposal presented Fail-Recover Operation ...
    • Development and performance evaluation of hierarchical quadrature amplitude modulation (HQAM) for image transmission over wireless channels 

      Md. Abdul Kader; Farid, Ghani, Prof. Dr.; R. Badlishah, Ahmad, Prof. Madya Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2011-09-20)
      Asymmetric modulation techniques like Quadrature Amplitude Modulation system is one of the key techniques in building a broadband mobile communication network because of increasing shortage of wireless communication channels. ...
    • A development of fractal PIFA (Planar Inverted F Antenna) with bandwidth enhancement for mobile phone applications 

      Saidatul Norlyana, Azemi; Azremi, Abdullah Al Hadi; R. Badlishah, Ahmad, Prof. Madya Dr.; Soh, Ping Jack; Malek, Fareq, Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2009-11-16)
      A novel Fractal planar inverted F antenna (F-PIFA) based on the self affinity design is presented in this paper. The procedure for designing a Fractal Planar Inverted F Antenna is explained and the 2nd iteration of Sierpinski ...
    • A development of fractal PIFA (Planar Inverted F Antenna) with bandwidth enhancement for mobile phone applications 

      Saidatul Norlyana, Azemi; Azremi, Abdullah Al Hadi; R. Badlishah, Ahmad, Prof. Madya Dr.; Soh, Ping Jack; Fareq, Malek (Institute of Electrical and Electronics Engineering (IEEE), 2009-11-16)
      A novel Fractal planar inverted F antenna (F-PIFA) based on the self affinity design is presented in this paper. The procedure for designing a Fractal Planar Inverted F Antenna is explained and the 2nd iteration of Sierpinski ...
    • A framework for Emmbedded parallel computers 

      Mohd Faizal, Jamil; R. Badlishah, Ahmad, Prof. Madya Dr.; Md. Yazid, Mohd Saman, Dr. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      High Performance Computing has provided the most interesting platform in the quest to solve high computational problems. Several factors have been identified that can be the focal points for enhancing current computing ...
    • Image enhancement using white balance technique in Ziehl-Neelsen sputum slide images 

      Rafikha Aliana, A. Raof; R. Badlishah, Ahmad, Prof. Madya Dr.; Mohd Yusoff, Mashor, Prof. Dr.; Siti Suraiya, Mohd Noor, Dr. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Ziehl-Neelsen stain method is one of the common techniques that are being used to diagnose the tuberculosis (TB) infection. However, due to the manual process of preparing the samples, the image of the slide may not appear ...
    • Investigate spectrum-sliced WDM System for FTTH 

      Nasim, Ahmed; Syed Alwee Aljunid, Syed Junid, Prof. Madya Dr.; R. Badlishah, Ahmad, Prof. Madya Dr.; Hilal Adnan, Fadhil, Dr.; Mohd Abdur, Rashid, Dr. (Springer-Verlag Berlin Heidelberg, 2011-06-27)
      In this paper, we have investigated the performance of spectrumsliced WDM system for FTTH network using NRZ modulation format with 2.5 Gb/s bit rates and 0.4-nm channel spacing. The bit-error-rate (BER) measured against ...
    • LAN packet acquisition system using ARM based SBC 

      Naufal, Alee; Mostafijur, Rahman; R. Badlishah, Ahmad, Prof. Madya Dr.; Zahereel Ishwar, Abdul Khalib (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Due to computer hardware technologies software developers are more focusing to develop embedded software. LAN packet acquisition system can embed on ARM based embedded Linux based single board computer (SBC). This paper ...
    • Modified median filter for noise reduction in Ziehl-Neelsen sputum slide images 

      Rafikha Aliana, A. Raof; R. Badlishah, Ahmad, Prof. Madya Dr.; Mohd Yusoff, Mashor, Prof. Dr.; Siti Suraiya, Mohd Noor, Dr. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Image filtering is an important approach in the area of digital image processing for noise reduction. The time cost and output image quality in the filtering system are two convention measures in selecting the appropriate ...
    • 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. ...
    • Outdoor propagation analysis for LR-WPAN IEEE 802.15.4 

      M. Azudin, Mohd Arif; L. Munirah, Kamarudin; Ali Yeon, Md Shakaff, Prof. Dr.; Mohd Noor, Ahmad, Prof. Dr.; R. Badlishah, Ahmad, Prof. Madya Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2010-09-22)
      This paper presents a preliminary study to obtain the propagation characteristics for IEEE 802.15.4 Low Rate-Wireless Personal Area Network (LR-WPAN). Two units of Wireless Sensor Networks Nodes (WSNs) were used in this ...
    • Performance analysis of multipath routing based on source routing 

      N. Z., Ali; R. Badlishah, Ahmad, Prof. Madya Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Madya (Universiti Malaysia Pahang (UMP), 2009-06-20)
      Mobile AdHoc Networks (MANETs) is a collection of mobile hosts forming a temporary network without the aid of any established infrastructure or centralized administration, and they interact with each other over wireless ...
    • Performance analysis on MDW code in FTTH access network using PIN & APD photodiode 

      Muthana. Y., Aldouri; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; R. Badlishah, Ahmad, Prof. Madya Dr.; Hilal Adnan, Fadhil, Dr. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      In order to comprise between PIN photo detector and avalanche photodiodes in a system used modified double weight (MDW) code to be a performance of the optical spectrum CDMA in FTTH network with point-to-multi-point ...
    • Prolonging lifetime of wireless sensor networks with mobile base station using particle swarm optimization 

      Nurul Adilah, Abdul Latiff; Nurul Mu’azzah, Abdul Latiff, Dr.; R. Badlishah, Ahmad, Prof. Madya Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2011-04-19)
      Wireless sensor networks are a family of networks in wireless communication system and have the potential to become significant subsystem of engineering applications. In view of the fact that the sensor nodes in wireless ...
    • Propagation model for wireless sensor networks: Review and modeling 

      Latifah Munirah, Kamarudin; R. Badlishah, Ahmad, Prof. Madya Dr.; Ong, Bi Ling (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      In simulation environments, prediction of path losses, maximum communication coverage for each node and received signal strength are calculated by using propagation model. However, most of the simulation tools only offer ...
    • Proposal: Fundamental study of spectral slicing wavelength division multiplexing (WDM) system 

      Nasim, Ahmed; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; R. Badlishah, Ahmad, Prof. Madya Dr.; Muthana, Yassen .K (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Since the inception of optical fiber communication in 1974, their transmission capacity has experienced a tremendous increase in the years after. Several technology advances spurred its growth. But its use was kept to long ...
    • A study of TCP congestion control mechanisms 

      Yew, Been Seok; Ong, Bi Ling; R. Badlishah, Ahmad, Prof. Madya Dr. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      In this paper, the TCP congestion control mechanisms are discussed. There are four intertwined mechanisms defined in the Internet standards track protocol, which are slow start, congestion avoidance, fast retransmit and ...