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Browsing Faculty Publications by Issue Date

Browsing Faculty Publications by Issue Date

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  • Guizani, Sghaier; Hamam, Habib (Institute of Electrical and Electronics Engineers Inc., 2007)
    Transmitting ultra wideband (UWB) pulse signals over optical fiber is a certain sign of Chromatic dispersion existence. (CD) is a serious problem in optical transmission because the velocity of light depends on the ...
  • Cherif, Rim; Zghal, Mourad; Hamam, Habib (Institute of Electrical and Electronics Engineers Inc., 2007)
    We numerically analyze the stimulated Raman scattering (SRS) in nonlinear photonic crystal fibers (PCF). Generalized nonlinear Schrodinger equation was used to model the propagation of femtosecond pulses in PCF. We demonstrate ...
  • Dridi, Kais; Hamam, Habib (Institute of Electrical and Electronics Engineers Inc., 2007)
    We propose a new all optical fiber based Ultra-wideband (UWB) pulse generation for propagation over optical fibers (UWBoF). The approach is based on time delay. The technique consists in duplicating the input signal, ...
  • Dridi, Kais; Hamam, Habib (Institute of Electrical and Electronics Engineers Inc., 2007)
    We propose a novel approach for generating UWB signals for propagation over the optical fiber. This technique uses the effect of chromatic dispersion in single mode fibers, expressed by the Schrodinger equation. After ...
  • Dridi, Kais; Hamam, Habib (Institute of Electrical and Electronics Engineers Inc., 2007)
    In this study, we present an overview on recent existing methods to generate UWB signals. Given the increasing interest in the UWB over optical fiber, special attention will be devoted to optical methods for generating UWB ...
  • Kamel, Nadjet; Selouani, Sid-Ahmed; Hamam, Habib (2008)
    This paper proposes the use of model- checking technique to validate Multimodal User Interfaces (MUIs). It introduces a modal logic to express the CARE (Complementarity, Assignation, Redundancy and Equivalent) usability ...
  • Chettat, Hichem; Mokhtar, Simohamed Lotfy; Bouslimani, Yassine; Hamam, Habib (Institute of Electrical and Electronics Engineers Inc., 2008)
    We present a comparative study of different Fiber-Wireless networks with regards to their applications, architecture, hardware complexity, development costs, offered services and allocated bandwidths. While spectral resources ...
  • Fennani, A.; Hamam, Habib (Institute of Electrical and Electronics Engineers Inc., 2008)
    We present a solution for integrating RFID technology in academic libraries by offering cost-effectiveness and good quality of service. On the one hand, we challenge hardware issues which include optimization of the layout ...
  • Rekik, Siwar; Selouani, Sid-Ahmed; Hamam, Habib (Institute of Electrical and Electronics Engineers Inc., 2009)
    The aim of this paper is to present a cooperative approach to improve the Human-System spoken dialogues. The main advantage of the proposed approach is its ability to reach both of the user and the system goals more ...
  • Salem, Abderraouf Ben; Selouani, Sid-Ahmed; Hamam, Habib; Caelen, Jean (Institute of Electrical and Electronics Engineers Inc., 2009)
    In this paper, a robust perceptual audio hashing system is presented. A model of the human auditory system is used to extract robust features from the outputs of a non-linear filter bank that mimics the human basilar ...
  • Kamel, Nadjet; Selouani, Sid-Ahmed; Hamam, Habib (Praise Worthy Prize S.r.l., 2009-01)
    A model-checking-based approach is proposed to verify the CARE (Complementarity, Assignement, Redundancy and Equivalence) usability properties for Multimodal User Interfaces (MUIs). This approach reduces the states explosion ...
  • Hamam, Habib; Loucif, Samia (Institute of Electrical and Electronics Engineers Inc., 2009-11)
    Educational institutions pay careful attention to the design of program curricula, which represent a framework to meet institutional goals and missions. Of course, the success of any institution depends highly on the quality ...
  • Moussa, Sherif; Dahmane, Adel Omar; D'Amours, Claude; Hamam, Habib (Institute of Electrical and Electronics Engineers Inc., 2010)
    In this paper, a new scheme that combines Orthogonal Frequency Division Multiplexing (OFDM) with parity bit selected block spreading is introduced. In this proposed method, the data symbols in each block is used to select ...
  • Salem, Abderraouf Ben; Selouani, Sid Ahmed; Hamam, Habib (2010)
    We present a new subband decomposition method for the separation of convolutive mixtures of speech. This method uses a sample-by-sample algorithm to perform the subband decomposition by mimicking the processing performed ...
  • Djebbar, Fatiha; Hamam, Habib; Abed-Meraim, Karim; Guerchi, Driss (Institute of Electrical and Electronics Engineers Inc., 2010)
    Methods applied to ensure privacy of digital data became essential in many real life applications. Efficient secrecy can be achieved, at least in part, by implementing steganography techniques. In this paper, we present a ...
  • Djebbar, Fatiha; Guerchi, Driss; Abed-Meraim, Karim; Hamam, Habib (Institute of Electrical and Electronics Engineers Inc., 2010)
    Boosted by recent advances in the information technology field, methods applied to ensure privacy of digital data became very important in many real life applications. Efficient secrecy can be achieved at least in part, ...
  • Djebbar, Fatiha; Abed-Meraim, Karim; Guerchi, Driss; Hamam, Habib (Institute of Electrical and Electronics Engineers Inc., 2010)
    In this paper we present a new method for text-in-speech Fast Fourier Transform (FFT) based steganography. Our method exploits high energetic magnitude frequency components of speech spectrum to hide the secret text. The ...
  • Al-Medhwahi, Mohammed; Alkholidi, Abdulsalam; Hamam, Habib (Institute of Electrical and Electronics Engineers Inc., 2010)
    Collision is considered as one of the most important issues to be in mind in RFID system designing. Although, there are many algorithms that all of them are aiming - at the end - to decrease collision state numbers or to ...
  • Hamam, Habib (OSA - The Optical Society, 2010)
    We propose an iterative method to optimize the phase profile of the initial field so that its intensity profile is observed periodically along the longitudinal (propagation) axis. The new method is inspired from the ...
  • Najjar, Mehdi; Courtemanche, Francois; Hamam, Habib; Mayers, Andre (Taylor and Francis Ltd., 2010)
    This article presents a novel modular adaptive artful intelligent assistance system for cognitively and/or memory impaired people engaged in the realisation of their activities of daily living (ADLs). The goal of this ...

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